This document compares the performance of IBM's PowerVM virtualization technology on POWER7 systems against VMware vSphere 4.1 update 1 on Intel x86 platforms using two industry standard benchmarks: AIM7 and TPoX. The AIM7 benchmark showed PowerVM delivering up to 115% better performance than vSphere at a consolidation ratio of 32 VMs to cores. PowerVM also demonstrated more linear scaling than vSphere across VM configurations from 1 to 32 VMs. Additional tests configuring vSphere VMs with 2 vCPUs each to better utilize Intel cores still showed PowerVM significantly outperforming vSphere.
Presentation power vm editions and power systems virtualization - basicsolarisyougood
This document discusses PowerVM editions and Power Systems virtualization. It provides an overview of PowerVM, the PowerVM matrix, and PowerVM editions. It then covers various PowerVM technologies like micro-partitions, active memory sharing, virtual I/O server, integrated virtual Ethernet, live partition mobility, and NPIV.
IBM has a long history of virtualization leadership dating back to the 1960s. PowerVM is IBM's hypervisor for Power Systems servers that provides logical partitioning (LPARs), dynamic LPAR (DLPAR), CPU and memory sharing, and I/O virtualization through Virtual I/O Servers (VIOS). PowerVM allows clients to consolidate workloads and optimize hardware resource utilization.
Student guide power systems for aix - virtualization i implementing virtual...solarisyougood
The document describes key concepts of logical partitioning for IBM Power Systems, including:
1) Partitions allocate system resources to create logically separate systems within the same physical footprint managed by the PowerVM Hypervisor.
2) Resources like processors, memory, and I/O can be dynamically allocated to partitions using DLPAR.
3) Advanced features allow shared processor pools, virtual I/O, live partition mobility, and capacity on demand.
4) The Hardware Management Console (HMC) manages partition configuration and resources.
PowerVM Live Partition Mobility in IBM PureFlexLuca Comparini
Technical overview in relation to the IBM PowerVM Live Partition Mobility (LPM): LPM is an IBM PowerVM® feature capable of migrating a running partition from one IBM Power Systems™ server to another; migration is performed without disrupting the transactions and the applications that are running on the partition, in other words transparently for the business.
LPM is not a business continuity feature. LPM improves the serviceability and maintainability of an environment running on Power Systems servers. In other words, this feature is designed to make the IT manager's life easier, when a planned maintenance is scheduled because it is capable of reducing the downtime to zero for a planned maintenance activity. Reasons for using LPM also include workload consolidation (from many servers to one), workload balancing (distribute workloads across a pool of servers), and workload resilience in response to a Predictive Failure Analysis (PFA) event.
Multiple Shared Processor Pools In Power SystemsAndrey Klyachkin
The document discusses Multiple Shared-Processor Pools (MSPPs) in IBM Power Systems servers. MSPPs allow administrators to partition physical CPUs into multiple shared pools, making capacity management and administration easier. After an introduction, the document covers PowerVM partitioning, MSPP implementation in POWER6 systems, and considerations for architecting virtualized services with MSPPs. It aims to explain the basic concepts and configuration of MSPPs and their benefits.
Presentation power vm virtualization without limitssolarisyougood
This document discusses IBM PowerVM virtualization capabilities for IBM Power Systems. PowerVM allows for virtualization of workloads through logical partitions (LPARs) and virtual machines (VMs). It provides capabilities like rapid provisioning, scalability, recoverability, and workload consolidation to improve efficiency and reduce costs. PowerVM editions differ in features available like the number of concurrent VMs, types of virtual I/O supported, and advanced functions. The document also discusses the Virtual I/O Server (VIOS) appliance, virtual storage and networking options in PowerVM like virtual SCSI, NPIV, and shared Ethernet adapters.
Future of Power: Aix in Future - Jan Kristian NielsenIBM Danmark
The document discusses upcoming features and enhancements for IBM Power Systems and AIX. Key points discussed include:
- Exploiting Power8 systems while maintaining support in Power7/Power6/Power6+ compatible modes.
- Enhancements to AIX such as live kernel updates, WPAR lifecycle management, and mksysb backups while systems are running.
- Trends in computing like more parallelization being required and technologies like transactional memory and accelerators.
- Simplification and automation features for manageability including system templates and REST APIs.
Presentation power vm editions and power systems virtualization - basicsolarisyougood
This document discusses PowerVM editions and Power Systems virtualization. It provides an overview of PowerVM, the PowerVM matrix, and PowerVM editions. It then covers various PowerVM technologies like micro-partitions, active memory sharing, virtual I/O server, integrated virtual Ethernet, live partition mobility, and NPIV.
IBM has a long history of virtualization leadership dating back to the 1960s. PowerVM is IBM's hypervisor for Power Systems servers that provides logical partitioning (LPARs), dynamic LPAR (DLPAR), CPU and memory sharing, and I/O virtualization through Virtual I/O Servers (VIOS). PowerVM allows clients to consolidate workloads and optimize hardware resource utilization.
Student guide power systems for aix - virtualization i implementing virtual...solarisyougood
The document describes key concepts of logical partitioning for IBM Power Systems, including:
1) Partitions allocate system resources to create logically separate systems within the same physical footprint managed by the PowerVM Hypervisor.
2) Resources like processors, memory, and I/O can be dynamically allocated to partitions using DLPAR.
3) Advanced features allow shared processor pools, virtual I/O, live partition mobility, and capacity on demand.
4) The Hardware Management Console (HMC) manages partition configuration and resources.
PowerVM Live Partition Mobility in IBM PureFlexLuca Comparini
Technical overview in relation to the IBM PowerVM Live Partition Mobility (LPM): LPM is an IBM PowerVM® feature capable of migrating a running partition from one IBM Power Systems™ server to another; migration is performed without disrupting the transactions and the applications that are running on the partition, in other words transparently for the business.
LPM is not a business continuity feature. LPM improves the serviceability and maintainability of an environment running on Power Systems servers. In other words, this feature is designed to make the IT manager's life easier, when a planned maintenance is scheduled because it is capable of reducing the downtime to zero for a planned maintenance activity. Reasons for using LPM also include workload consolidation (from many servers to one), workload balancing (distribute workloads across a pool of servers), and workload resilience in response to a Predictive Failure Analysis (PFA) event.
Multiple Shared Processor Pools In Power SystemsAndrey Klyachkin
The document discusses Multiple Shared-Processor Pools (MSPPs) in IBM Power Systems servers. MSPPs allow administrators to partition physical CPUs into multiple shared pools, making capacity management and administration easier. After an introduction, the document covers PowerVM partitioning, MSPP implementation in POWER6 systems, and considerations for architecting virtualized services with MSPPs. It aims to explain the basic concepts and configuration of MSPPs and their benefits.
Presentation power vm virtualization without limitssolarisyougood
This document discusses IBM PowerVM virtualization capabilities for IBM Power Systems. PowerVM allows for virtualization of workloads through logical partitions (LPARs) and virtual machines (VMs). It provides capabilities like rapid provisioning, scalability, recoverability, and workload consolidation to improve efficiency and reduce costs. PowerVM editions differ in features available like the number of concurrent VMs, types of virtual I/O supported, and advanced functions. The document also discusses the Virtual I/O Server (VIOS) appliance, virtual storage and networking options in PowerVM like virtual SCSI, NPIV, and shared Ethernet adapters.
Future of Power: Aix in Future - Jan Kristian NielsenIBM Danmark
The document discusses upcoming features and enhancements for IBM Power Systems and AIX. Key points discussed include:
- Exploiting Power8 systems while maintaining support in Power7/Power6/Power6+ compatible modes.
- Enhancements to AIX such as live kernel updates, WPAR lifecycle management, and mksysb backups while systems are running.
- Trends in computing like more parallelization being required and technologies like transactional memory and accelerators.
- Simplification and automation features for manageability including system templates and REST APIs.
Ibm power ha v7 technical deep dive workshopsolarisyougood
PowerHA is IBM's high availability and disaster recovery solution for AIX. It uses clustering technology to provide continuous availability of applications even during planned or unplanned outages. PowerHA is available in Standard and Enterprise editions, with the Enterprise edition providing additional capabilities for multi-site configurations. Key features of PowerHA include automated workload failover, health monitoring, and support for storage-based replication technologies.
Virtualization technologies allow servers to be consolidated onto fewer physical servers for improved efficiency. IBM's PowerVM allows one physical server to be divided into multiple logical partitions (LPARs), with each LPAR able to run its own operating system. Key PowerVM technologies include micro-partitioning which divides physical CPUs among LPARs, dynamic LPARs which moves resources between active partitions, and virtual I/O servers which allow partitions to share physical network and storage adapters. These technologies improve utilization, flexibility, and availability compared to using separate physical servers.
The document discusses IBM POWER8 technology for cloud computing and OpenStack. It provides an overview of PowerVM and PowerKVM virtualization, how IBM integrates hardware technologies into OpenStack environments, and a real example of deploying an OpenStack private cloud solution. It also covers advanced monitoring tools for clouds like PowerVP and PowerVC, and how PowerVC integrates with OpenStack.
Introduce: IBM Power Linux with PowerKVMZainal Abidin
This document provides an overview of PowerKVM, an open source virtualization option for Linux systems on IBM Power servers. It discusses PowerKVM and PowerVM virtualization, highlighting that PowerKVM supports only Linux guests while PowerVM supports AIX, IBM i and Linux. Management options for PowerKVM include open source tools while PowerVM supports proprietary tools and PowerVC for both virtualization platforms. The document also presents performance benchmarks showing Power8 significantly outperforming Intel Xeon processors.
Fordele ved POWER7 og AIX, IBM Power EventIBM Danmark
Du får masser af fordele ved at opdatere til POWER7 og AIX. Oplev mulighederne for at udnytte konsolidering og de nye funktioner i POWER7 og AIX.
Jan Kristian Nielsen, Client Architect, IBM
The IBM XIV Gen3 Storage System provides several key integrations with VMware vSphere that improve performance and management:
1) It supports VAAI primitives like full copy offload and hardware-assisted locking that improve scalability and reduce host processing.
2) It integrates with vSphere APIs like VASA to provide real-time storage information and alerts to vCenter.
3) It includes a plug-in for vCenter that allows storage provisioning, mapping, replication and snapshot management from within vCenter.
This document provides information about EMC's ViPR software-defined storage platform, including:
1. ViPR SRM and ViPR Controller help reduce storage costs and increase flexibility by automating storage management and providing a self-service portal.
2. ViPR abstracts physical storage arrays, pools resources, and provides REST APIs and storage services to simplify management of heterogeneous infrastructure.
3. Case studies show how ViPR SRM provides visibility into storage utilization and performance, enabling optimization of resources and ensuring service levels are met.
Future of Power: PureFlex and IBM i - Erik RexIBM Danmark
This document provides an overview of IBM Power Systems and IBM i. It discusses the integration and benefits of IBM i such as built-in functionality, testing, ease of management and stability. It also discusses the IBM PureFlex system and its ability to optimize infrastructure through resource sensing and anticipation. Specific Power Systems servers like the p260 and p460 are highlighted and the document concludes by emphasizing IBM i and PureFlex as a higher standard for integrated and trusted business computing.
IBM Power Systems is designed for business. Major releases in the Power Systems era include IBM i 6.1, which introduced foundations for the future like solid state drive support, a Java virtual machine, and Systems Director Navigator. IBM i 6.1 also improved Java and WebSphere performance by up to 78% compared to prior releases. Customers saw benefits from migrating to newer Power Systems servers running IBM i, like reduced costs, improved reliability, and being positioned for growth.
Power systems virtualization with power kvmsolarisyougood
1. PowerKVM provides an open source virtualization option for Power Systems running Linux workloads that is managed like other KVM systems using open source tools or OpenStack.
2. PowerKVM exploits features of Power8 like micro-threading to improve workload consolidation compared to traditional PowerVM or PowerKVM.
3. PowerKVM is best suited for customers running Linux-only workloads who prefer open technologies and are familiar with KVM or VMware.
Learn about IBM PowerVM Best Practices.This IBM Redbooks publication provides best practices for planning, installing, maintaining, and monitoring the IBM PowerVM Enterprise Edition virtualization features on IBM POWER7 processor technology-based servers.
For more information on Power Systems, visit http://ibm.co/Lx6hfc.
Visit http://bit.ly/KWh5Dx to 'Follow' the official Twitter handle of IBM India Smarter Computing.
The document discusses IBM's XIV storage array. It provides details on:
- XIV's simplicity and ease of use with no tuning required
- XIV's scalability to multi-petabyte capacities through its grid architecture
- New features of XIV including real-time compression, Microsoft Azure integration, and quality of service classes
IBM informix: compared performance efficiency between physical server and Vir...BeGooden-IT Consulting
This presentation is about servers virtualization applied to IBM Informix DBMS. It features comparisons between different virtualization technologies, including hardware benchmark and TPC-C benchmark
Learn about IBM PowerVM Virtualization Introduction and Configuration. PowerVM is a combination of hardware, firmware, and software that provides CPU, network, and disk virtualization.This publication is also designed to be an introduction guide for system administrators, providing instructions for tasks like Configuration and creation of partitions and resources on the HMC,Installation and configuration of the Virtual I/O Server, creation and installation of virtualized partitions. For more information on Power Systems, visit http://ibm.co/Lx6hfc.
Visit http://on.fb.me/LT4gdu to 'Like' the official Facebook page of IBM India Smarter Computing.
VIOS provides I/O virtualization on Power Systems by enabling virtual adapters. This allows IBM i partitions to access storage through the VIOS. There are two main methods: 1) VSCSI, where storage is assigned to the VIOS which then maps it to IBM i clients, and 2) NPIV, where the hypervisor assigns unique WWPNs to virtual fiber channels connecting the VIOS to storage arrays. NPIV requires an NPIV-capable switch and has limitations such as a maximum of 64 active client connections per physical port.
This document provides an overview of EMC's VMAX3 storage array. Key points include:
- VMAX3 offers improved performance, scale, and simplicity over prior VMAX arrays through its new architecture and software capabilities.
- It can scale from 100K to 400K drives and offers all-flash configurations. Software suites provide different levels of functionality.
- The new engines powering VMAX3 offer increased cores, memory, and bandwidth over prior engines. I/O modules support various host and replication interfaces.
- Features like Service Level Objectives and ProtectPoint backup simplify management and reduce risk. Hardware redundancy and non-disruptive upgrades maximize availability.
Fulcrum Group Virtualization How does It FitSteve Meek
The document discusses virtualization and VMware virtualization solutions. It provides an overview of virtualization concepts and types, the main virtualization vendors including VMware and their products, the benefits of virtualizing servers, and how to deploy and manage a VMware virtualization environment. The presentation includes screenshots of managing virtual machines and hosts using VMware tools. It also discusses desktop virtualization options and the VMware vSphere product suites and features.
The document provides configuration best practices for using IBM's SAN Volume Controller (SVC) with IBM's XIV storage systems. It discusses SVC and XIV terminology, logical configuration recommendations for each product, zoning considerations, and SSD and Easy Tier deployment considerations when using SVC and XIV together. Sample configurations for XIV Gen2 and Gen3 systems with SVC are also presented.
Oracle software can be tricky to manage and maintain a level of compliance. These slides offer key areas to review within your organisation and best practice guidelines to get better value from your investments.
This document provides an overview of the topics that will be covered in a database systems textbook. It introduces the major parts of the book, including relational databases, database design, data storage and querying, transaction management, and database architectures. Each chapter is briefly described to give the reader an understanding of what concepts will be discussed in more depth throughout the textbook.
Ibm power ha v7 technical deep dive workshopsolarisyougood
PowerHA is IBM's high availability and disaster recovery solution for AIX. It uses clustering technology to provide continuous availability of applications even during planned or unplanned outages. PowerHA is available in Standard and Enterprise editions, with the Enterprise edition providing additional capabilities for multi-site configurations. Key features of PowerHA include automated workload failover, health monitoring, and support for storage-based replication technologies.
Virtualization technologies allow servers to be consolidated onto fewer physical servers for improved efficiency. IBM's PowerVM allows one physical server to be divided into multiple logical partitions (LPARs), with each LPAR able to run its own operating system. Key PowerVM technologies include micro-partitioning which divides physical CPUs among LPARs, dynamic LPARs which moves resources between active partitions, and virtual I/O servers which allow partitions to share physical network and storage adapters. These technologies improve utilization, flexibility, and availability compared to using separate physical servers.
The document discusses IBM POWER8 technology for cloud computing and OpenStack. It provides an overview of PowerVM and PowerKVM virtualization, how IBM integrates hardware technologies into OpenStack environments, and a real example of deploying an OpenStack private cloud solution. It also covers advanced monitoring tools for clouds like PowerVP and PowerVC, and how PowerVC integrates with OpenStack.
Introduce: IBM Power Linux with PowerKVMZainal Abidin
This document provides an overview of PowerKVM, an open source virtualization option for Linux systems on IBM Power servers. It discusses PowerKVM and PowerVM virtualization, highlighting that PowerKVM supports only Linux guests while PowerVM supports AIX, IBM i and Linux. Management options for PowerKVM include open source tools while PowerVM supports proprietary tools and PowerVC for both virtualization platforms. The document also presents performance benchmarks showing Power8 significantly outperforming Intel Xeon processors.
Fordele ved POWER7 og AIX, IBM Power EventIBM Danmark
Du får masser af fordele ved at opdatere til POWER7 og AIX. Oplev mulighederne for at udnytte konsolidering og de nye funktioner i POWER7 og AIX.
Jan Kristian Nielsen, Client Architect, IBM
The IBM XIV Gen3 Storage System provides several key integrations with VMware vSphere that improve performance and management:
1) It supports VAAI primitives like full copy offload and hardware-assisted locking that improve scalability and reduce host processing.
2) It integrates with vSphere APIs like VASA to provide real-time storage information and alerts to vCenter.
3) It includes a plug-in for vCenter that allows storage provisioning, mapping, replication and snapshot management from within vCenter.
This document provides information about EMC's ViPR software-defined storage platform, including:
1. ViPR SRM and ViPR Controller help reduce storage costs and increase flexibility by automating storage management and providing a self-service portal.
2. ViPR abstracts physical storage arrays, pools resources, and provides REST APIs and storage services to simplify management of heterogeneous infrastructure.
3. Case studies show how ViPR SRM provides visibility into storage utilization and performance, enabling optimization of resources and ensuring service levels are met.
Future of Power: PureFlex and IBM i - Erik RexIBM Danmark
This document provides an overview of IBM Power Systems and IBM i. It discusses the integration and benefits of IBM i such as built-in functionality, testing, ease of management and stability. It also discusses the IBM PureFlex system and its ability to optimize infrastructure through resource sensing and anticipation. Specific Power Systems servers like the p260 and p460 are highlighted and the document concludes by emphasizing IBM i and PureFlex as a higher standard for integrated and trusted business computing.
IBM Power Systems is designed for business. Major releases in the Power Systems era include IBM i 6.1, which introduced foundations for the future like solid state drive support, a Java virtual machine, and Systems Director Navigator. IBM i 6.1 also improved Java and WebSphere performance by up to 78% compared to prior releases. Customers saw benefits from migrating to newer Power Systems servers running IBM i, like reduced costs, improved reliability, and being positioned for growth.
Power systems virtualization with power kvmsolarisyougood
1. PowerKVM provides an open source virtualization option for Power Systems running Linux workloads that is managed like other KVM systems using open source tools or OpenStack.
2. PowerKVM exploits features of Power8 like micro-threading to improve workload consolidation compared to traditional PowerVM or PowerKVM.
3. PowerKVM is best suited for customers running Linux-only workloads who prefer open technologies and are familiar with KVM or VMware.
Learn about IBM PowerVM Best Practices.This IBM Redbooks publication provides best practices for planning, installing, maintaining, and monitoring the IBM PowerVM Enterprise Edition virtualization features on IBM POWER7 processor technology-based servers.
For more information on Power Systems, visit http://ibm.co/Lx6hfc.
Visit http://bit.ly/KWh5Dx to 'Follow' the official Twitter handle of IBM India Smarter Computing.
The document discusses IBM's XIV storage array. It provides details on:
- XIV's simplicity and ease of use with no tuning required
- XIV's scalability to multi-petabyte capacities through its grid architecture
- New features of XIV including real-time compression, Microsoft Azure integration, and quality of service classes
IBM informix: compared performance efficiency between physical server and Vir...BeGooden-IT Consulting
This presentation is about servers virtualization applied to IBM Informix DBMS. It features comparisons between different virtualization technologies, including hardware benchmark and TPC-C benchmark
Learn about IBM PowerVM Virtualization Introduction and Configuration. PowerVM is a combination of hardware, firmware, and software that provides CPU, network, and disk virtualization.This publication is also designed to be an introduction guide for system administrators, providing instructions for tasks like Configuration and creation of partitions and resources on the HMC,Installation and configuration of the Virtual I/O Server, creation and installation of virtualized partitions. For more information on Power Systems, visit http://ibm.co/Lx6hfc.
Visit http://on.fb.me/LT4gdu to 'Like' the official Facebook page of IBM India Smarter Computing.
VIOS provides I/O virtualization on Power Systems by enabling virtual adapters. This allows IBM i partitions to access storage through the VIOS. There are two main methods: 1) VSCSI, where storage is assigned to the VIOS which then maps it to IBM i clients, and 2) NPIV, where the hypervisor assigns unique WWPNs to virtual fiber channels connecting the VIOS to storage arrays. NPIV requires an NPIV-capable switch and has limitations such as a maximum of 64 active client connections per physical port.
This document provides an overview of EMC's VMAX3 storage array. Key points include:
- VMAX3 offers improved performance, scale, and simplicity over prior VMAX arrays through its new architecture and software capabilities.
- It can scale from 100K to 400K drives and offers all-flash configurations. Software suites provide different levels of functionality.
- The new engines powering VMAX3 offer increased cores, memory, and bandwidth over prior engines. I/O modules support various host and replication interfaces.
- Features like Service Level Objectives and ProtectPoint backup simplify management and reduce risk. Hardware redundancy and non-disruptive upgrades maximize availability.
Fulcrum Group Virtualization How does It FitSteve Meek
The document discusses virtualization and VMware virtualization solutions. It provides an overview of virtualization concepts and types, the main virtualization vendors including VMware and their products, the benefits of virtualizing servers, and how to deploy and manage a VMware virtualization environment. The presentation includes screenshots of managing virtual machines and hosts using VMware tools. It also discusses desktop virtualization options and the VMware vSphere product suites and features.
The document provides configuration best practices for using IBM's SAN Volume Controller (SVC) with IBM's XIV storage systems. It discusses SVC and XIV terminology, logical configuration recommendations for each product, zoning considerations, and SSD and Easy Tier deployment considerations when using SVC and XIV together. Sample configurations for XIV Gen2 and Gen3 systems with SVC are also presented.
Oracle software can be tricky to manage and maintain a level of compliance. These slides offer key areas to review within your organisation and best practice guidelines to get better value from your investments.
This document provides an overview of the topics that will be covered in a database systems textbook. It introduces the major parts of the book, including relational databases, database design, data storage and querying, transaction management, and database architectures. Each chapter is briefly described to give the reader an understanding of what concepts will be discussed in more depth throughout the textbook.
Oracle database - The most common license compliance issues seenb.lay
This document provides an overview of common license compliance issues encountered with Oracle databases. It discusses issues related to understanding license entitlements, hardware infrastructure, software installations, and software configuration. Specifically, it notes that license entitlements are defined in multiple documents that must be understood and maintained. It also highlights issues such as incorrectly counting processors, non-compliance with virtualization policies, installing incorrect database editions, and failing to maintain supported database releases. The document aims to help users properly handle their Oracle database licenses.
a. The Happy Nights motel chain system would be a two-tiered system. The local motel franchise reservation systems would act as clients that connect to a centralized DBMS server located at the central office.
b. The Sticky Wicket Company system would be a three-tiered system. Each branch office acts as a client with its own local DBMS (tier 1). The central Detroit office acts as the middleware tier to connect the branch office DBMS systems. And the centralized inventory database in Detroit acts as the shared database resource (tier 3).
Understanding software licensing with IBM Power Systems PowerVM virtualizationJay Kruemcke
One of the key benefits of combining workloads in a virtualized environment is the ability to pay for less than the full capacity of the machine. Unfortunately there are many misconceptions about how software licensing really works in these environments.
The IBM Power Systems PowerVM virtualization technology offers a great deal of flexibility, but that flexibility also results in complexity when determining software license requirements. This presentation covers important licensing considerations for the IBM Power Systems environment.
Lime for Oracle is software designed to provide complete insight and management of an organization's Oracle licensing. It aims to help users gain clarity on their Oracle license estate, including the actual number of users, risks, opportunities, and costs. The software promises to organize an organization's Oracle licensing, which can otherwise be complex, prone to error, and difficult for organizations to manage without specific tools from Oracle.
This document provides an overview of database system concepts and architecture. It discusses different data models including conceptual, physical and implementation models. It also covers database languages, interfaces, utilities and centralized versus distributed (client-server) architectures. Specifically, it describes hierarchical and network data models, the three schema architecture, data independence, DBMS languages like DDL and DML, and different DBMS classifications including relational, object-oriented and distributed systems.
This document provides an overview of database management systems (DBMS). It defines key terms like data, database, and DBMS. It describes the basic components and architecture of a DBMS, including the three-scheme architecture and client-server models. The document also outlines important DBMS properties such as completeness, integrity, flexibility, efficiency and usability. Additionally, it discusses common DBMS types, features, and how they are used to define databases, access data nonprocedurally, develop applications, and ensure transaction processing and database tuning.
The document discusses different aspects of file systems and file structures. It describes files as collections of data that have long-term existence, can be shared between processes, and organized hierarchically. File systems provide storage for files and functions to manipulate them, maintaining attributes. Common file structures include sequential, indexed sequential, and direct/hashed files. The document also outlines the components of a file system software architecture and operations performed on directories.
This document discusses various aspects of file systems including:
1. It defines what a file is and lists some common file attributes like name, size, and timestamps.
2. It describes different file operations like create, read, write, delete and different methods to access and store files like sequential, random, and index access.
3. It discusses file system implementation techniques like contiguous allocation, linked lists, and i-nodes and how free space is managed through approaches like bitmaps and linked lists.
The document discusses file systems for embedded systems. It explains that an embedded system needs a root file system to store operating system data and optional user data. The root file system can be built by creating directories, adding binaries like BusyBox, and libraries. Root file systems can be transferred via initramfs, NFS, or read-only filesystem images like squashfs. Different filesystem types can be used depending on storage needs and characteristics.
The document discusses how operating systems manage files and memory allocation. It explains that from the computer's perspective, there are no actual files, only blocks of allocated and unallocated memory. The file manager in the operating system creates the illusion of files and folders by tracking memory locations and implementing file allocation policies. Files can be stored contiguously, non-contiguously, or through indexed allocation with pointers. Access controls determine which users can access which files.
Learn about Virtualization Performance on the IBM PureFlex System. the white paper shows that the IBM PureFlex system can deliver VM consolidation in a heterogeneous, self-contained environment capable of impressive levels of throughput performance. It can dramatically reduce time to production for virtualized data center application operations, providing multiple compute and operating system platforms, advanced storage, and integrated networking in a single manageable system.
This document discusses virtualization solutions from IBM and VMware. It notes that these companies provide workload-optimized systems, consultative services, and heterogeneous management to help companies move to more fully virtualized environments and cloud computing. Specifically, it highlights IBM's eX5 systems which are designed for virtualization and deliver mainframe-inspired reliability, lower costs, and energy savings when used with VMware's vSphere platform. The collaboration between IBM and VMware provides innovative virtualization solutions delivering high performance, density, reliability, and availability.
IBM® Power® servers are built to help clients respond faster to business demands,
protect data from core to cloud and streamline insights and automation while
maximizing reliability in a sustainable way. Power servers can modernize
applications and infrastructure with a hybrid cloud experience to provide the agility
companies need.
Most medium and large-sized IT organizations have deployed several generations of virtualized servers, and they have become more comfortable with the performance and reliability with each deployment. As IT organizations increased virtual machine (VM) density, they reached the limits of vSphere software, server memory, CPU, and I/O.
A new VM engine is now available and this document describes how it can help IT organizations maximize use of their servers running VMware® vSphere® 5.1 (henceforth referred to as vSphere 5.1).
Virtualization abstracts the underlying physical hardware and allows multiple virtual machines to run on the same server. This provides benefits like server consolidation, increased hardware utilization, and improved security. While virtualization works well for most applications, some resource-intensive or real-time applications may have performance limitations in a virtualized environment. Virtualization is now being applied at larger scales through cloud computing, where virtual machines and services can be provisioned on-demand from large-scale data centers.
This document discusses optimizing IT infrastructure through consolidation and virtualization. It provides three key points:
1) An integrated system of multiple architectures can optimize workload deployment and reduce operational overhead through centralized management and administration. This can lower costs by up to 80% for areas like power, facilities, labor, and software licenses.
2) The zEnterprise platform lowers acquisition costs by up to 56% and reduces ownership costs by up to 55% by helping to simplify the data center and establish an efficient foundation.
3) Virtualization technologies like z/VM allow workloads to efficiently utilize system resources and improve productivity by dynamically allocating CPUs, memory, and other hardware as needed.
This report deals with this cost/benefit equation. Specifically, it compares the IBM i 7.1 operating system deployed on Power Systems with two alternatives: use of Microsoft Windows Server 2008 and SQL Server 2008, and use of x86 Linux with Oracle Database 11g, both deployed on Intel-based servers.
IBM Power Systems is working to decrease costs, improve performance and use the open community to help competitive enterprises put data to work in the cloud.
White paper: IBM FlashSystems in VMware EnvironmentsthinkASG
Drive performance in VMware environments with IBM FlashSystem. IBM flash storage delivers extreme, scalable performance for virtualized infrastructure.
The IBM BladeCenter Foundation for Cloud white paper provides an overview of the platform and its advantages for enterprises. It discusses how the solution combines servers, storage, networking, and software into an optimized unified architecture. The paper highlights how the platform delivers outstanding performance through its converged networking and scalable architecture. It also emphasizes how the solution provides reliability through redundancy and quality support from IBM.
IBM Flex System offers a brand new platform for creating solutions to address emerging market applications, such as Cloud, Big Data, Analytics, and Smarter Planet. In this paper, we described how to create a custom private cloud configuration that uses Flex System. For more information on Pure Systems, visit http://ibm.co/18vDnp6.
Visit the official Scribd Channel of IBM India Smarter Computing at http://bit.ly/VwO86R to get access to more documents.
This document provides a summary of a white paper about implementing the server virtualization technology Hyper-V. It describes how Hyper-V can: reduce physical server infrastructure needs and costs by consolidating workloads; preserve performance of business services; improve backup/recovery reliability and simplify disaster recovery; and help IT manage applications that support core business operations. The document then provides more details about what server virtualization and Hyper-V are, and how Hyper-V can reduce costs by increasing server utilization rates compared to physical servers.
VMware Infrastructure is evolving into a virtual datacenter operating system (VDC-OS) that aggregates server, storage, and network hardware into shared resources and allocates these efficiently among applications. This provides built-in services like availability, security, and performance scalability to all applications. The VDC-OS allows more efficient consolidation than traditional operating systems and helps address challenges of complex, siloed, and inefficient infrastructures. Key features of the VDC-OS include virtual services for compute, storage, networking, and cloud resources that improve scalability, availability, security and manageability.
This document discusses hyper-converged infrastructure (HCI) solutions. It begins by describing how server virtualization has evolved from using standalone servers to converged infrastructure that combines computing, storage, and networking into a single rack. HCI takes this a step further by integrating these components into a single appliance for improved performance and efficiency. The document then compares converged and HCI solutions, outlines some key vendors, discusses future trends, and analyzes the advantages and disadvantages of these approaches.
Top 5 reasons_to_choose_microsoft_hyper-v_r2_sp1_over_v_mware_v_sphere 5Marcos Freccia
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2. Hyper-V is built into Windows Server, providing familiarity and minimizing learning curves compared to VMware which requires separate licensing of the hypervisor and guest operating systems.
3. Hyper-V provides best performance for virtualizing Microsoft workloads like SharePoint, SQL Server, and Exchange compared to VMware.
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Top 5 reasons_to_choose_microsoft_hyper-v_r2_sp1_over_v_mware_v_sphere 5Thiago Beier
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1. Hyper-V has strong adoption momentum and growth in market share compared to vSphere. Major customers are using Hyper-V.
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3. Hyper-V provides best performance for virtualizing Microsoft workloads like SharePoint, SQL Server, and Exchange.
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This document provides an overview of IBM PowerLinux and solutions for empowering next generation business innovation and leadership. It discusses the PowerLinux portfolio including PowerLinux servers and the IBM Installation Toolkit for simplifying Linux installation. It highlights advantages such as unparalleled virtualization performance, reliability, availability and serviceability enabled by Power architecture. Example solutions presented include SugarCRM for customer relationship management and Bloombase StoreSafe for encrypting data across big data and cloud environments.
VMware on IBM Cloud Client PresentationSumaya Erol
Here are the next steps:
- Schedule a discovery session to understand your environment and objectives
- Design a proof of concept to validate the solution
- Implement the hybrid cloud environment using VMware on IBM Cloud
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CPU performance comparison of two cloud solutions: VMware vCloud Hybrid Servi...Principled Technologies
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This reference architecture document describes deploying the VMware vCloud Enterprise Suite on the IBM PureFlex System hardware platform. Key points:
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In the rapidly evolving landscape of technologies, XML continues to play a vital role in structuring, storing, and transporting data across diverse systems. The recent advancements in artificial intelligence (AI) present new methodologies for enhancing XML development workflows, introducing efficiency, automation, and intelligent capabilities. This presentation will outline the scope and perspective of utilizing AI in XML development. The potential benefits and the possible pitfalls will be highlighted, providing a balanced view of the subject.
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Overview
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Test Automation with generative AI and Open AI.
UiPath integration with generative AI
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GraphRAG for Life Science to increase LLM accuracy
IBM PowerVM Virtualization Technology on IBM POWER7 Systems
1. 89 Fifth Avenue, 7th Floor
New York, NY 10003
www.TheEdison.com
212.367.7400
White Paper
IBM PowerVM Virtualization
Technology on IBM POWER7 Systems
A Comparison of PowerVM and
VMware vSphere (4.1 & 5.0)
Virtualization Performance
2. Printed in the United States of America
Copyright 2011 Edison Group, Inc. New York. Edison Group offers no warranty either
expressed or implied on the information contained herein and shall be held harmless for errors
resulting from its use.
All products are trademarks of their respective owners.
First Publication: September 2011; Second Publication: January, 2012
Produced by: Craig Norris, Sr Analyst; Barry Cohen, Editor-in-Chief; Manny Frishberg, Editor
This document was developed with IBM funding. Although the document may utilize publicly
available material from various vendors, including IBM, it does not necessarily reflect the
positions of such vendors on the issues addressed in this document.
3. Table of Contents
Executive Summary ..................................................................................................................... 1
Introduction .................................................................................................................................. 3
Objective .................................................................................................................................. 3
Audience.................................................................................................................................. 3
Contents of this Report.......................................................................................................... 3
The Business Value of Virtualization...................................................................................... 4
Benchmark Comparison Study: PowerVM vs. VMware...................................................... 6
AIM7 Benchmark.................................................................................................................... 6
TPoX Benchmark.................................................................................................................. 10
Summary of Results ............................................................................................................. 20
IBM’s Virtualization Infrastructure: POWER7 Systems .................................................... 21
PowerVM............................................................................................................................... 22
Processor Virtualization ...................................................................................................... 22
Memory Virtualization ........................................................................................................ 23
I/O Virtualization.................................................................................................................. 23
Partition Mobility ................................................................................................................. 23
Partition Hibernation........................................................................................................... 23
Workload Partitioning......................................................................................................... 24
Systems Management .......................................................................................................... 24
PowerVM Advantages......................................................................................................... 25
Conclusions................................................................................................................................. 28
Appendices.................................................................................................................................. 31
Appendix 1 — Benchmark Configuration Information ........................................................ 31
Appendix 2 — General Benchmark Descriptions .................................................................. 34
Addendum................................................................................................................................... 35
4. Edison: IBM – Virtualization Performance White Paper Page 1
Executive Summary
Today’s business organizations need to rein in IT costs without sacrificing performance,
security, reliability, and flexibility. A new era has emerged in which it is now possible,
through intelligent and strategic use of new and/or advanced technology, to achieve
breakthrough economics, considerably reducing the cost of delivering the workloads
central to a business’s operation.
IBM has aggressively been making pioneering strides in IT infrastructure, harnessing
trends and innovation to deliver top-notch functionality with great efficiency for
considerable data center savings. IBM's Smarter Computing initiative has helped many
forward-thinking organizations design, tune, and manage their IT infrastructures to
make them designed for data, tuned to the task, and managed in the cloud.
A cornerstone of this initiative is a move toward architectures optimized for specific
purposes and built around deep domain knowledge. The goals here are to reduce
deployment times for systems from months to days, improve performance with
utilization rates of up to 90 percent, and to reduce floor space, power consumption,
labor, and total cost per workload. The key technology advancement harnessed to
achieve these goals is server consolidation through virtualization.
Using virtualization to consolidate data center servers has become an integral
component of how successful companies design their IT systems. However, the majority
of businesses fall far short of realizing the full potential of server consolidation. On
average, consolidation ratios are only around six virtual machines (VMs) per physical
server. Even world-class organizations are only consolidating at a ratio of about 18 to 1
at best. Much higher VM densities are possible without degrading system performance,
significantly reducing data center consolidation expenses and yielding a considerable
economic advantage to organizations.
Under the banner of “Power is performance redefined,” IBM has introduced an
impressive profile of servers with the 2010 launch and 2011 release of Power Systems
servers and blades. These products are based on the IBM POWER7 processor
architecture, ranging from 2-socket to 32-socket with up to 256 cores.
To evaluate what IBM’s virtualization technology can offer clients, Edison Group was
engaged to help provide a clear understanding of the benefits that can be seen when
organizations implement virtualization technology as part of their IT environment. IBM
virtualization technologies support a server virtualization ratio of 1,000 to 1, outdoing
competitors and providing for massive data center consolidation. Clients using
5. Edison: IBM – Virtualization Performance White Paper Page 2
POWER7 systems and PowerVM virtualization technology achieve higher operational
savings by using greater VM density. Many of the advantages stem from the fact that
PowerVM technology is built directly into the firmware of all Power Systems servers.
The widely-deployed VMware vSphere and other x86-based virtualization products are
typically third-party software add-ons, sold and installed separately.
This technical white paper presents benchmark results showing greater VM
consolidation ratios than demonstrated in previous benchmarks and demonstrating the
extent of the performance lead that PowerVM virtualization technologies deliver over
x86-based add-on virtualization products. The tests, running two workload benchmarks
of different consolidation ratios on POWER7 processor-based and comparable Intel-
based systems, demonstrate the exceptional performance and scalability of PowerVM
virtualization technologies compared to VMware vSphere1 on an x86-based platform.
Key findings include the following:
PowerVM technology on an IBM Power 750 system performs up to 131 percent
better than VMware vSphere in whole core configuration with a consolidation ratio
of 32 to 1.
PowerVM on Power 750 outperforms VMware by up to 525 percent when running
multiple VMs and workloads, despite the test Intel x86 system (Westmere-EX)
containing a greater number of cores (40 versus 32).
PowerVM technology on a 4-socket IBM Power 750 system demonstrated linear
scaling, with 50 percent more absolute throughput performance compared to
VMware vSphere.
In terms of throughput performance, vSphere 5 demonstrated no improvement over
vSphere 4.1 update 1; in fact, it demonstrated slightly lower performance overall.
The benchmark results clearly reveal that PowerVM virtualization technology on
POWER7 processor-based platforms offers greater performance than that offered by
VMware vSphere on Intel x86 platforms. They enable high consolidation ratios, broader
scalability, and increased flexibility for a far superior virtualization solution. PowerVM
virtualization technology on POWER7 processor-based platforms not only uses system
resources in shared processor mode more efficiently, but also delivers superior
performance when resources are over-committed with a higher consolidation ratio.
Together they establish PowerVM virtualization technology as the consolidation system
of choice for organizations wishing to realize the full advantages of greater VM density.
1 For results of comparison benchmarks with VMware vSphere 5, see the Addendum to this study.
6. Edison: IBM – Virtualization Performance White Paper Page 3
Introduction
Objective
The objective of this white paper is to compare the performance of PowerVM
virtualization technologies on POWER7 processor-based server platforms against
VMware vSphere on comparable Intel x86 platforms. It describes tests using industry-
standard benchmarks to compare virtualization technologies. The results were
reviewed, analyzed, and presented by Edison Group.
Audience
This paper is intended for anyone interested in the advantages of server consolidation
through virtualization. IT managers, CIOs, system architects, and others will find
valuable information that will help them further enhance and adopt virtualization
technology within their IT environments.
Contents of this Report
This white paper contains the following major sections:
The Business Value of Virtualization — This section discusses the business value
propositions underlying the benchmark evaluations presented in this paper.
Benchmark Comparison Study: PowerVM Virtualization Technology vs. VMware
vSphere 4.1 update 1 — This section presents the comparative testing, describing the
test bed setup, the benchmarks, the actual tests, and the results of the tests.
IBM’s Virtualization Infrastructure: POWER7 Processor-Based Systems — This
section describes the Power Systems virtualization infrastructure, its components,
and its advantages.
Appendices — The appendices contain configuration information and general
descriptions for the benchmarks used in the tests discussed in this paper
Addendum — Benchmark Comparison Study: PowerVM Virtualization
Technology vs. VMware vSphere 5 — This section presents the comparative results
with VMware vSphere 5 on an HP ProLiant DL580 G7 E7-4870 server — which
features the X5600-series Xeon (Westmere-EX) chip architecture.
7. Edison: IBM – Virtualization Performance White Paper Page 4
The Business Value of Virtualization
Inefficiencies have cropped up in data center operations as applications, workloads, and
data have multiplied. These include: underutilization of server processor capacity,
memory bottlenecks that restrict performance, server sprawl and its related difficulties
in deployment and management, as well as higher energy bills from excessive power
demands. Such inefficiencies increase costs, both through expenditures for equipment
purchases and licensing, as well as through greater demands on administrative staff
resources, etc.
Virtualization technologies allow IT organizations to consolidate workloads running on
multiple operating systems and software stacks, and to dynamically allocate platform
resources to meet specific business and application requirements. Server virtualization,
the foundation platform for today’s data center, is quickly reaching maturity. More than
half of business server workloads are now deployed on virtual machines. According to
IDC, 2 virtualization has become the default build for new server installations, driving
down costs and establishing the foundation for more efficient and flexible configurations
and technology platforms. The average size of virtualized workloads increased threefold
between 2006 and 2009. The performance of virtualization is a critical factor to realize
success of server pools and cloud computing (and is also a key component in IBM’s
roadmap in its Smarter Computing initiative).
Well-implemented virtualization solutions may be employed to:
Reduce hardware expenditures by consolidating multiple environments, including
underutilized servers, and systems with varied and dynamic resource requirements.
Reduce costs for power and cooling, floor space, hardware maintenance, and
software licensing.
Grow and shrink resources dynamically according to business needs.
Deploy new workloads through provisioning VMs or new systems rapidly to meet
changing business demands.
Develop and test applications in secure, independent domains while allocating
production to its own domain on the same system.
Transfer live workloads to support server migrations, balance system load, or avoid
planned downtime that can otherwise adversely impact productivity.
Control server sprawl, reducing system management costs.
2 The Value of Memory-Dense Servers: IBM’s System x MAX5 for its eX5 Server Family, March 2010, IDC
8. Edison: IBM – Virtualization Performance White Paper Page 5
Despite this, the majority of businesses fall far short of seizing upon the full potential of
server consolidation. Their average consolidation ratio hovers around six VMs per
server,3 yet economic advantages from data center consolidation increase significantly at
much higher VM densities. By increasing the consolidation ratio per system, businesses
can reduce capital expenditures and operational costs by reducing the number of
systems in their data center or IT organization.
IBM’s Smarter Computing systems, which allow for greater VM density without
degrading system performance, can deliver considerable economic advantages to
organizations using them. This study examines the performance and scaling aspects of
PowerVM and VMware vSphere virtualization at high consolidation ratios (32:1 and
40:1) across two different commonly employed industry benchmarks (AIM7 and TpoX).
The case of 40:1 consolidation ratio — “five virtual machines per core”— was mapped to
achieve a higher amount of compression than the client deployment consolidation ratio
surveyed in 2010.4
3 According to a recent Aberdeen Group report, Best-in-Class Practices for Virtualizing Microsoft Applications,
August 2010, even the best-in-class organizations in the study consolidate at only an 18:1 ratio.
4 http://www.networkworld.com/news/2010/121510-vmware-server.html
9. Edison: IBM – Virtualization Performance White Paper Page 6
Benchmark Comparison Study:
PowerVM vs. VMware vSphere 4.1 update 1
AIM7 Benchmark
AIM7 is a well-known open source benchmark. It is widely used by UNIX computer
system vendors to compare system performance. It comprises three pre-defined tests
suites (compute, multi-user, and database). Each suite is a mix of compute-, memory-
and I/O-intensive atomic tests covering a wide range of operations. AIM7 also stresses
the guest operating system’s kernel performance within virtualized environments. The
testing described in this paper used the compute server test suite.
Methodology
For AIM7 scaling tests, all 32 available cores were used to scale from one to 32 virtual
machines on both platforms. The Power Linux version used on PowerVM virtualization
technology was SuSE 11 SP1, while SuSE 11 SP1 x86_64 version was used as guest OS on
VMware vSphere 4.1 update 1. (Configuration details of the tests are in the appendices.)
Results
AIM7 was scaled in one, two, four, eight, 16, and 32 virtual machines (each virtual
machine having one virtual processor). Scaling was close to linear on both the POWER7
processor-/PowerVM technology-based systems and the Intel/VMware vSphere 4.1
update 1 platforms. The tests were run at close to 100 percent utilization to measure the
absolute performance of AIM7 in each VM configuration.
POWER7 processor-/PowerVM technology-based systems demonstrated more than two
times (110 percent) better performance than Intel/VMware vSphere 4.1 update 1 at one,
two, four, eight, and 16 VM configurations, while at 32 VM, PowerVM technology
demonstrated a 115 percent advantage (Figure 1).
NOTE: The VM configuration and the test results can be found in the tables
following the graphs for each test in this paper, starting with Figure 1.
Table 1 shows the details on throughput and CPU utilization for each configuration. In
this test, the VMs on both platforms were configured as close to identically as possible.
In the case of PowerVM, each logical partitioning (LPAR) was given one core
entitlement, one vCPU (virtual CPU), and 3 GB RAM; in the case of VMware vSphere 4.1
10. Edison: IBM – Virtualization Performance White Paper Page 7
update 1, each VM was given one vCPU and 3 GB RAM, with the remainder left at
default options.
Figure 1. AIM7 Benchmark Virtual Machine Scaling Performance
System Configuration for AIM7
Benchmark (1 to 32 VM Scaling)
# of
VMs
Total
Virtual
CPUs
% CPU
Utilization Jobs / min
IBM Power 750 3.5 GHz DPSM mode, 4
sockets, 512 GB RAM, SMT4 enabled,
PowerVM and SLES11 SP1 (Power Linux)
1 1 94.6 19048.5
2 2 94.3 38120.5
4 4 97.8 76189.5
8 8 94.6 152249.8
16 16 98 303983.8
32 32 96.9 603085.1
HP ProLiant DL580 G7, 2.26 GHz, 8 cores /
24 MB cache (4 sockets Intel Xeon 7560
Processors, 512 GB system RAM, (HT and
Turbo enabled in BIOS Intel VTx with EPT
HW virtualization assist) VMware
vSphere 4.1, SLES11 SP1 (GA x86_64)
1 1 100 9068.6
2 2 99.89 18137.2
4 4 94.15 36180.1
8 8 100 72398.3
16 16 92.5 144365.4
32 32 95.2 280726.8
Table 1. AIM7 Benchmark Multiple Virtual Machine Scaling Results
11. Edison: IBM – Virtualization Performance White Paper Page 8
PowerVM and VMware vSphere technologies differ in the way they map a physical
processor to a virtual processor. PowerVM virtualization technology maps all four
threads of a core (SMT4, introduced with POWER7 processor-based systems) to a virtual
processor. So, PowerVM technology leveraged POWER7 SMT4 technology with one
vCPU configuration. VMware vSphere maps one of the two threads of a core (Intel’s HT
technology) to a virtual processor. Therefore, VMware vSphere 4.1 update 1 was not
able to leverage Intel’s HT technology with one vCPU configuration per VM.
The tests on VMware vSphere 4.1 update 1 were thus repeated with two vCPU per VM
configuration in order to observe performance with two threads running on a core.
Because the VMware vSphere 4.1 update 1 VM was reconfigured to have two virtual
processors, the test team wished to ensure that each VM was assigned a core to match
with PowerVM technology. So, CPU affinity was used to assign two threads (the
primary and secondary thread of a core) to two virtual processors of each VM.5 This set
of tests was a fair comparison with PowerVM test results, since it allowed the workload
to consume all the capacity of the system in a manner similar to POWER/PowerVM
technology. The results of the second test are shown below (Figure 2).
The second test results with two vCPU reveal that results for the Intel Xeon processor
running VMware vSphere 4.1 update 1 had improved, but still lagged behind
POWER/PowerVM results. In each of the tests, PowerVM technology still demonstrated
up to 59 percent higher throughput performance than Intel 7560 /VMware vSphere 4.1
update 1, at close to 100 percent utilization.
Power 750/PowerVM technology demonstrated higher AIM7 throughput performance
than the HP system with Intel 7560 processor using VMware technologies. Many factors
contributed to this superior performance, including: PowerVM technology efficiency,
IBM POWER7 SMT4 technology, and IBM POWER7 processor core frequency
(specifically, the fact that IBM POWER7 technology supports higher frequency with the
same processor capacity than does Intel Xeon technology).
5 That is, one vCPU of a VM was assigned to an even number logical processor, and a second vCPU of a VM
was assigned to an odd number logical processor. For example, the first vCPU of the first VM was assigned
to logical cpu0, and the second vCPU of the first VM was assigned to logical cpu1, so that all the primary
and secondary threads of cores were consumed by the workload running on that VM.
12. Edison: IBM – Virtualization Performance White Paper Page 9
Figure 2. AIM7 Benchmark Multiple Virtual Machine Scaling with two vCPU for VMware
vSphere 4.1 update 1
System Configuration for AIM7
Benchmark (1 to 32 VM Scaling)
# of
VMs
Total
Virtual
CPUs
% CPU
Utilization
Jobs /
min
IBM Power 750 3.5 GHz DPSM mode, 4
sockets, 512 GB RAM, SMT4 enabled,
PowerVM and SLES11SP1 (Power Linux)
1 1 94.6 19048.5
2 2 94.3 38120.5
4 4 97.8 76189.5
8 8 94.6 152249.8
16 16 98 303983.8
32 32 96.9 603085.1
HP ProLiant DL580 G7, 2.26 GHz, 8 cores /
24 MB cache (4 sockets) Intel Xeon 7560
Processors, 512 GB system RAM, (HT and
Turbo enabled in BIOS Intel VTx with EPT
HW virtualization assist),VMware
vSphere 4.1, SLES11 SP1 (GA x86_64)
1 2 95.19 12274.8
2 4 99.67 24351.7
4 8 95.75 48671.4
8 16 95.32 97531.6
16 32 99.8 190598.1
32 64 92.09 379976.1
Table 2. AIM7 Benchmark Multiple Virtual Machine Scaling with two vCPU for VMware
vSphere 4.1 update 1
13. Edison: IBM – Virtualization Performance White Paper Page 10
TPoX Benchmark
TPoX (Transaction Processing over XML) is an application-level “XML database”
benchmark based on a financial application scenario. It simulates an actual application
that performs queries, inserts, updates, and deletes in a concurrent multi-user workload.
It is an XML OLTP benchmark using data-oriented XML structures, very large numbers
of relatively small XML documents (1 kb to 20 kb), short read/write transactions, and a
high degree of concurrency. It models a security-trading scenario that uses a real-world
XML Schema (FIXML). TPoX is an open-source benchmark developed by IBM in
collaboration with Intel and others. It is available at:
http://tpox.sourceforge.net/tpoxresults.htm 6
A database application, TPoX stresses CPU, memory, and storage I/O; however, in a
multi-VM environment, this benchmark also stresses the virtualization infrastructure
supporting these resources on both platforms.
Methodology
The next set of tests was conducted using the TPoX benchmark. These tests involve a
higher degree of processor contention, using a VM-to-core ratio of 5:1. Because of this
increased ratio, the shared pool configuration was reduced in these tests to eight cores
on both platforms, in order to limit the maximum VMs to 40 on each platform.
The TPoX benchmark is I/O-intensive and its performance is dependent on storage
performance. Identical storage subsystems were used on both of the VM platforms. A
logical array (12 spindles) with RAID5 was used to host four VMs on each in order to
avoid I/O blender 7. Both the data and logs for the database are configured on the same
set of disks in order to simplify the configuration for hosting 40 VMs.
Each VM used a 1 GB database in order to match up with each VM’s CPU (0.2 core) and
memory capacity (3 GB). A single-tier TPoX configuration was chosen for each VM
where the client and the database reside in the same VM.
The VM configuration has multiple options on both PowerVM and VMware vSphere
technologies8
6 Reference: http://nativexmldatabase.com/2011/03/04/new-tpox-benchmark-results-available/
7 http://www.networkworld.com/news/2010/102510-burning-questions-virtualization-storage.html
8 On PowerVM, each VM was configured with 0.2 core/one vCPU/uncapped mode/3 GB RAM with shared
processor pool allocated with one, two, four and eight cores (up to one socket) for five-VM, 10-VM, 20-
VM, and 40-VM, respectively. There were three dedicated LPARs configured to consume the other three
sockets on Power 750 system. On VMware, two sets of configurations were used; the first set includes a
configuration where each VM was given one vCPU/20 percent of a core — 452 MHz limit/4 GB RAM, and
14. Edison: IBM – Virtualization Performance White Paper Page 11
Results
The database for each VM on each of the platforms was populated with the same
configuration set. The transaction rate for populating the database is shown in Table 3.
Power
750/PowerVM
HP DL580G7/ VMware
vSphere 4.1 update 1 1vCPU
Order (inserts per second) 1,591 746
Custacc (inserts per second) 684 271
Table 3. TPoX Database Populated Rate for First Configuration Set
As these results indicate, the performance rate for populating the database is two to two-
and-a-half times better for POWER/PowerVM technology than with Intel Xeon 7560
/VMware vSphere 4.1 update 1. Figure 3, below, presents results demonstrating that the
transactions throughput performance on POWER/PowerVM technology is as much as
three times better than Intel Xeon 7560 /VMware vSphere 4.1 update 1. 9
Figure 3. TPoX Benchmark Results in 40:1 Consolidation Ratio
Table 4 presents detailed information on the total number of TPoX users used in each
test, pool utilization, throughput, and VM configuration for each tests.
advanced shared panel settings that included 1) hyperthread core sharing and, 2) scheduling affinity set to
0-15 (logical processors). The idea was to run five VMs on a single core; with five vCPUs the entire core
should be utilized in hyperthreading mode.
9 Because processor utilization in the first VMware configuration set made it harder to report total
percentage, in this case pool utilization was used. With a single virtual processor per VM, it would not be
realistic to map to either a primary or secondary thread per VM. For example, in the five-VM test, where the
goal was to use 20 percent of a core, binding a VM could be done either to a primary or to a secondary
thread, in which case some VMs would be running on primary and others would running on secondary.
Thus, the decision was made to use the pool to assign cpu0 to cpu15 for all the tests. At a lower number of
VMs, VMware used around 20 percent from each of the cores in the pool; at 40 VMs the pool utilization
matched with PowerVM as it is shown in Figure 3.
15. Edison: IBM – Virtualization Performance White Paper Page 12
System Configuration for TPoX
Benchmark (1 to 40 VM Scaling)
# of
VMs
Total
Virtual
CPUs
Total # of
TPoX
Users
% Pool
Utilization
Transactions
per second
IBM Power 750 3.5 GHz DPSM mode, 4
sockets, 512 GB RAM, SMT4 enabled,
PowerVM, AIX 7.1 is the host OS for
each VM. VIOS is configured with 0.2
core/1 vCPU/ uncapped mode/ 4 GB
RAM. Each LPAR is configured with 1
vCPU/ uncapped/3 GB RAM 3 LPARs
have 0.2 cores and 2 LPARs have 0.1
core Shared pool has one core
5 5 50 12.5 612.2
8 LPARs are configured each with 0.2/1
vCPU/ uncapped/ 3 GB memory, 2
LPARs are configured with 0.1/1
vCPU/uncapped/3 GB memory, vios
has 0.2/1 vCPU/uncapped/4 GB
memory. Shared pool has two cores
10 10 100 24.5 1155
18 LPARs are configured each with
0.2/1 vCPU/ uncapped/ 3 GB memory,
2 LPARs are configured with 0.1/1
vCPU/uncapped/3 GB memory, vios
has 0.2/1 vCPU/uncapped/4 GB
memory. Shared pool has four cores
20 20 200 49 2137
38 LPARs configured with 0.2core/
1vCPU/uncapped and 2 LPARs
configured with 0.1core/1vCPU/
uncapped. Shared pool has eight cores
40 40 400 98 4169.8
HP ProLiant DL580 G7, 2.26 GHz, eight
cores / 24 MB cache (4 sockets) Intel
Xeon 7560 Processors, 512 GB system
RAM (HT and Turbo enabled in BIOS
Intel VTx with EPT HW virtualization
assist) VMware vSphere 4.1 update1.
Each VM has guest OS RHEL6 GA.
Each VM is given 0.2 of a core/1
vCPU/3 GB memory. DB2 buffer pool
for data is configured in each VM.
Schedule affinity is set to cpu0 and
cpu1.
5 5 50 21.8 203.18
Schedule affinity is set to cpu0 to cpu3 10 10 100 33.89 397.15
Schedule affinity is set to cpu0 to cpu7 20 20 200 56.62 760.52
Schedule affinity is set to cpu0 to cpu15 40 40 400 97.26 1571.27
Table 4. TPoX Benchmark Results
16. Edison: IBM – Virtualization Performance White Paper Page 13
Figures 4A and 4B depict the response time for each transaction type — query, update,
delete, and insert — for each test on both platforms.
Figure 4A. TPoX Query and Update Response Time
17. Edison: IBM – Virtualization Performance White Paper Page 14
Figure 4B. TPoX Delete and Insert Response Time
As shown in Figure 4A and 4B (above), the response time on VMware vSphere 4.1
update 1 was two to six times higher, compared to PowerVM virtualization technology,
as the number of VMs scaled from five to 40 VMs. The pool utilization was higher as
well, while throughput was lower on VMware vSphere 4.1 update 1 than on PowerVM
technology. Even though hyper threading (HT) technology was leveraged in this test,
VMware vSphere 4.1 update 1 performance remained one-third of that demonstrated by
PowerVM technology.
18. Edison: IBM – Virtualization Performance White Paper Page 15
# of
VMs
Total
Virtual
CPUs
Avg
query
rsp
(sec)
Avg
update
rsp
(sec)
Avg
delete
rsp
(sec)
Avg
insert
rsp
(sec)
IBM Power 750 3.5 GHz DPSM mode,
four sockets, 512 GB RAM, SMT4
enabled, PowerVM, AIX 7.1 is the host
OS for each VM. VIOS is configured
with 0.2 core/1 vCPU/ uncapped mode/
4 GB RAM. Each LPAR is configured
with 1 vCPU/ uncapped/3 GB RAM 3
LPARs have 0.2 cores and 2 LPARs have
0.1 core. Shared pool has one core
5 5 0.09 0.08 0.03 0.05
8 LPARs are configured each with 0.2/1
vCPU/ uncapped/ 3 GB memory, two
LPARs are configured with 0.1/1
vCPU/uncapped/3 GB memory, vios has
0.2/1 vCPU/uncapped/4 GB memory.
Shared pool has two cores
10 10 0.09 0.08 0.04 0.06
18 LPARs are configured each with 0.2/1
vCPU/ uncapped/ 3 GB memory, two
LPARs are configured with 0.1/1
vCPU/uncapped/3 GB memory, vios has
0.2/1 vCPU/uncapped/4 GB memory.
Shared pool has four cores
20 20 0.1 0.1 0.06 0.07
38 LPARs configured with 0.2core/ one
vCPU/uncapped and two LPARs
configured with 0.1core/1 vCPU/
uncapped. Shared pool has eight cores
40 40 0.1 0.15 0.1 0.12
HP ProLiant DL580 G7, 2.26 GHz, eight
cores / 24 MB cache (four sockets) Intel
Xeon 7560 Processors, 512 GB system
RAM (HT and Turbo enabled in BIOS
Intel VTx with EPT HW virtualization
assist) VMware vSphere 4.1 update1.
Each VM has guest OS RHEL6 GA. Each
VM is given 0.2 of a core/1 vCPU/3 GB
memory. DB2 buffer pool for data is
configured in each VM. Schedule
affinity is set to cpu0 and cpu1.
5 5 0.22 0.33 0.205 0.26
Schedule affinity is set to cpu0 to cpu3 10 10 0.22 0.376 0.26 0.3
Schedule affinity is set to cpu0 to cpu7 20 20 0.22 0.39 0.275 0.315
Schedule affinity is set to cpu0 to cpu15 40 40 0.24 0.348 0.18 0.265
Table 5. TPoX Response Time for Each Transaction Type
19. Edison: IBM – Virtualization Performance White Paper Page 16
Power 750/PowerVM
HP DL580G7/ VMware
vSphere 2vCPU
Order (inserts per second) 1591 1176
Custacc (inserts per second) 684 333
Table 5A. TPoX Database Populated Rate for Second Set (2 vCPU) of Configuration
A second configuration set on VMware vSphere 4.1 update 1 was added in order to
restrict the VMs to run within the core, similar to the PowerVM virtualization
configuration.10 Again, the database of each VM in this new configuration on VMware
vSphere 4.1 update 1 was populated. The transaction rate for populating the database is
shown in Table 5A. The results of this set of tests were compared with results for
PowerVM technology, as shown in Figures 6, A and B.
POWER/PowerVM still retained 2.3 times better performance than HP Intel/VMware
vSphere 4.1 update 1 technologies, even with reconfiguration using CPU affinity
(VMware Scheduling Affinity group) on VMware vSphere 4.1 update 1. CPU utilization
on both platforms remained close to identical.
Figure 5. TPoX Performances with VMware vSphere 4.1 update 1 Virtual Machine
Reconfiguration
10 In this set each virtual machine was configured to have two vCPUs, using the CPU affinity feature in
VMware; the first vCPU was bound to the primary thread while the second vCPU of a VM was bound to
secondary thread of a core. For the five-VM test, all 10 vCPUs were bound to one core (both primary and the
secondary thread); for the 10-VM test, all 20 vCPUs were bound to two cores; for the 20-VM test, all 40
vCPUs were bound to four cores; and for 40-VM test, all 80 vCPUs were bound to eight cores. In each case
each VM was able to leverage both primary and secondary threads concurrently.
20. Edison: IBM – Virtualization Performance White Paper Page 17
System Configuration for TPoX
Benchmark (5 to 40 VM Scaling)
# of
VMs
Total
Virtual
CPUs
% CPU
Utilization
Transactions
per second
IBM Power 750 3.5 GHz DPSM mode, four
sockets, 512 GB RAM, SMT4 enabled,
PowerVM, AIX 7.1 is the host OS for each
VM. VIOS is configured with 0.2 core/1
vCPU/ uncapped mode/ 4 GB RAM. Each
LPAR is configured with 1 vCPU/
uncapped/3 GB RAM three LPARs have
0.2 cores and 2 LPARs have 0.1 core.
Shared pool has one core
5 5 100 612.2
8 LPARs are configured each with 0.2/1
vCPU/ uncapped/ 3 GB memory, two
LPARs are configured with 0.1/1
vCPU/uncapped/3 GB memory, vios has
0.2/1 vCPU/uncapped/4 GB memory.
Shared pool has two cores
10 10 98 1155
18 LPARs are configured each with 0.2/1
vCPU/ uncapped/ 3 GB memory, two
LPARs are configured with 0.1/1
vCPU/uncapped/3 GB memory, vios has
0.2/1 vCPU/uncapped/4 GB memory.
Shared pool has four cores
20 20 98 2137
38 LPARs configured with 0.2core/ 1
vCPU/uncapped and two LPARs
configured with 0.1 core/1 vCPU/
uncapped. Shared pool has eight cores
40 40 98 4169.8
HP ProLiant DL580 G7, 2.26 GHz, eight
cores / 24 MB cache (4 sockets) Intel Xeon
7560 processors, 512 GB system RAM (HT
and Turbo enabled in BIOS Intel VTx with
EPT HW virtualization assist) VMware
vSphere 4.1 update1. Each VM has guest
OS RHEL6 GA. Each VM is given 2 vCPUs
unlimited/3 GB memory. DB2 buffer pool
for data is configured in each VM.
Schedule affinity is set to cpu0 and cpu1.
5 10 100 259
Schedule affinity is set to cpu0 to cpu3 10 20 100 490.5
Schedule affinity is set to cpu0 to cpu7 20 40 100 997.9
Schedule affinity is set to cpu0 to cpu15 40 80 100 1906.4
Table 6 TPoX Performance with VMware vSphere 4.1 update 1 Virtual Machine
Reconfiguration
21. Edison: IBM – Virtualization Performance White Paper Page 18
Consider how the response time improved with CPU scheduling affinity on VMware
vSphere 4.1 update 1. The query response time was reduced by approximately 30
percent. However, the impact on other transactions’ response time was negligible.
The question arose as to how these results would compare to previously published
TPoX benchmark results. No published results using virtualization technologies existed,
so Edison Group compared these results with those of published results for testing non-
virtualized systems on a comparable Intel Xeon 7560 system.11
Figure 6A. TPoX Query and Update Response Time
Figure 6B. TPoX Delete and Insert Response Time
11 In March 2010, Intel had published TPoX benchmark results on an Intel Xeon 7560 system with 32
cores/256 GB RAM using a 1 TB database in a non-virtualized environment. Further results can be found at
http://tpox.sourceforge.net/TPoX_Results_X7560.pdf
22. Edison: IBM – Virtualization Performance White Paper Page 19
System Configuration for TPoX
Benchmark (5 to 40 VM scaling)
# of
VMs
Total
Virtual
CPUs
Avg
query
rsp
(sec)
Avg
update
rsp
(sec)
Avg
delete
rsp
(sec)
Avg
insert
rsp
(sec)
IBM Power 750 3.5 GHz DPSM mode,
four sockets, 512 GB RAM, SMT4
enabled, PowerVM, AIX 7.1 is the host
OS for each VM. VIOS is configured
with 0.2 core/1 vCPU/ uncapped mode/
4 GB RAM. Each LPAR is configured
with 1 vCPU/ uncapped/3 GB RAM 3
LPARs have 0.2 cores and two LPARs
have 0.1 core Shared pool has one core
5 5 0.09 0.08 0.03 0.05
8 LPARs are configured each with 0.2/1
vCPU/ uncapped/ 3 GB memory, two
LPARs are configured with 0.1/ 1
vCPU/uncapped/3 GB memory, vios
has 0.2/1 vCPU/uncapped/4 GB
memory. Shared pool has two cores
10 10 0.09 0.08 0.04 0.06
18 LPARs are configured each with
0.2/1 vCPU/ uncapped/ 3 GB memory,
two LPARs are configured with 0.1/1
vCPU/uncapped/3 GB memory, vios
has 0.2/1 vCPU/uncapped/4 GB
memory. Shared pool has four cores
20 20 0.1 0.1 0.06 0.07
38 LPARs are configured with 0.2core/ 1
vCPU/uncapped and 2 LPARs
configured with 0.1core/1 vCPU/
uncapped. Shared pool has eight cores
40 40 0.1 0.15 0.1 0.12
HP ProLiant DL580 G7, 2.26 GHz, eight
cores / 24 MB cache (four sockets) Intel
Xeon 7560 Processors, 512 GB system
RAM (HT and Turbo enabled in BIOS
Intel VTx with EPT HW virtualization
assist) VMware vSphere 4.1 update1.
Each VM has guest OS RHEL6 GA. Each
VM is given two vCPU unlimited/3 GB
memory. DB2 buffer pool for data is
configured in each VM. Schedule
affinity is set to cpu0 and cpu1.
5 10 0.145 0.3 0.245 0.26
Schedule affinity is set to cpu0 to cpu3 10 20 0.17 0.36 0.285 0.33
Schedule affinity is set to cpu0 to cpu7 20 40 0.16 0.39 0.25 0.275
Schedule affinity is set to cpu0 to cpu15 40 80 0.17 0.345 0.25 0.28
Table 7 TPoX Response Time with VMware vSphere 4.1 update 1 Reconfiguration
23. Edison: IBM – Virtualization Performance White Paper Page 20
These previously-published results were better than what was achieved in tests using
the HP Intel Xeon 7560 system described here. The difference in these results could be
attributed to differences in storage subsystem, database size, execution of a large
number of software images such as guest OS, database middleware, etc. Most
significant, however, is that the tests described here were conducted in a virtualized
environment using VMware vSphere, which adds overhead in comparison to a non-
virtualized environment.
Summary of Results
Overall, PowerVM virtualization technology demonstrated superior performance over
VMware vSphere 4.1 update 1 in two different configurations, each configuration
covering two different virtual machine densities featuring high resource contention. As
demonstrated using the AIM7 and TPoX benchmarks, the difference in throughput
performance was quite considerable throughout, ranging from 50 percent better to as
much as 200 percent better on PowerVM technology.
24. Edison: IBM – Virtualization Performance White Paper Page 21
IBM’s Virtualization Infrastructure:
POWER7 Processor-Based Systems
The currently available POWER7 processor-based systems combine excellent
performance, scalability, and modularity. IBM’s clients realize a high return on their
investments with flexible, responsive infrastructures that easily adapt and grow based
on business needs. A virtualization hypervisor is built into Power Systems to provide
superior performance over competitive systems which rely on third-party virtualization
software such as the widely-deployed VMware vSphere.
POWER7 processor-based systems offer balanced systems designs that automatically
optimize workload performance and capacity at either a system or a virtual machine
level. Features include:
TurboCore workload-optimizing mode for maximum per-core performance for
databases.
MaxCore for parallelization and maximum capacity throughput.
Intelligent threading technology to utilize more threads when it benefits workloads.
Intelligent Cache technology to optimize cache utilization, flowing from core to core.
Intelligent Energy that maximizes performance dynamically when thermal
conditions allow.
Active Memory Expansion 12 that dynamically provides more memory on an as-
needed basis.
Active Memory Sharing that allows for logical over-commitment of physical
memory and deduplication.
IBM PowerVM technology — the virtualization software built into the POWER7
processor-based systems — offers an unprecedented level of platform support,
scalability, efficient resource utilization, flexibility, and heterogeneous server
management. IBM PowerVM virtualization offers autonomic resource affinity, resulting
in higher workload performance in a virtualized environment. IBM POWER7 Systems,
and PowerVM technology with its efficient virtualization, are an excellent foundation
for cloud computing environments.
12 Supported on AIX operating systems only.
25. Edison: IBM – Virtualization Performance White Paper Page 22
PowerVM Virtualization Technology
With IBM POWER processor-based systems and IBM PowerVM virtualization
technologies, an organization can consolidate applications and servers using
partitioning and virtualized system resources to achieve a more flexible and dynamic IT
infrastructure. PowerVM delivers robust virtualization for IBM i, IBM AIX, and Linux
environments on IBM POWER processor-based systems. The POWER Hypervisor is
integrated as part of the system firmware and supports multiple operating
environments on a single system. PowerVM virtualization technology offers the
flexibility of combining dedicated and shared resources in the same partition. IBM
Power Systems servers and PowerVM technology are designed to deliver a dynamic
infrastructure that can help reduce costs, manage risk, and improve service levels.
Processor Virtualization
PowerVM technology’s advanced dynamic logical partitioning (LPAR) capabilities
allow a single partition to act as a completely separate AIX, IBM i, or Linux operating
environment. Partitions can be assigned either dedicated or shared processor resources.
With shared resources, PowerVM virtualization technology can automatically adjust
pooled processor resources across multiple operating systems, borrowing processing
power from idle partitions to handle high transaction volumes in other partitions.
PowerVM technology’s Micro-Partitioning supports up to 10 dynamic logical partitions
per processor core. Depending upon the Power server, up to 1,000 independent
virtualized servers can be run on a single physical Power server — each virtualized
server with its own fractional processor share, memory, and I/O resources. These
partitions can be assigned at a granularity of 1/100th of a core. Consolidating systems
with PowerVM technology can reduce operational costs, improve availability, ease
management, and improve service levels, while allowing businesses to deploy
applications quickly.
Shared processor pools increase throughput by allowing for the automatic non-
disruptive balancing of processing power between partitions assigned to shared pools. It
also provides for the ability to reduce processor-based software licensing costs by
capping the processor core resources used by a group of partitions.
Shared dedicated capacity allows for the “donation” of spare CPU cycles, from
dedicated processor partitions to a shared processor pool. The dedicated partition
maintains absolute priority for dedicated CPU cycles. Enabling this feature can help to
increase system utilization without compromising the computing power for critical
workloads in a dedicated processor.
26. Edison: IBM – Virtualization Performance White Paper Page 23
Memory Virtualization
PowerVM technology features Active Memory Sharing, a technology that intelligently
and dynamically reallocates memory from one partition to another for increased
utilization, flexibility, and performance. Active Memory Sharing enables the sharing of a
pool of physical memory among logical partitions on a single server. This helps reduce
the need for reserve memory resource capacity in a consolidated environment by
increasing the efficiency of memory utilization, driving down system costs. The memory
is dynamically allocated among the partitions as needed, to optimize the usage of
physical memory in the pool. Along with shared memory, PowerVM technology also
supports dedicated memory allocation, which enables partitions having shared memory
to coexist in the same system as partitions having dedicated memory.
I/O Virtualization
The Virtual I/O Server (VIOS) is an integral part of PowerVM technology. A special-
purpose partition, VIOS eliminates the need for dedicated network adapters, disk
adapters and disk drives, and tape adapters and tape drives in the guest partitions
running as VMs. It can reduce costs by virtualizing I/O resources to those partitions.
VIOS owns the resources that are shared with clients; a physical adapter assigned to the
VIOS partition can be shared by one or more other partitions. With VIOS, guest
partitions can easily be created for test, development, or production purposes. PowerVM
technology also supports dedicated I/O along with VIOS on the same system. Therefore,
a single system can have I/O hosted by VIOS for some partitions and other partitions
with dedicated I/O devices. An organization can thus reserve a dedicated VM of a given
capacity that can be relied upon for high-priority and/or mission-critical workloads,
while assigning other VMs to a general resource pool.
Partition Mobility
Live Partition Mobility facilitates the migration of a running AIX or Linux partition from
one physical server to another without requiring application downtime for planned
system maintenance, migrations, provisioning, and workload management.
Partition Hibernation
IBM POWER7 systems support Partition Hibernation, where a partition can be
suspended and resumed at a later time. In a suspended state, a partition’s resources can
be used by other partitions while the suspended partition’s state is stored in a paging
27. Edison: IBM – Virtualization Performance White Paper Page 24
space on a persistent storage device. Partition Hibernation can be used for resource
balancing and for planned CEC outages for maintenance or upgrades.
Workload Partitioning
PowerVM technology also supports a software partitioning technology provided by the
AIX operating system, a mode of virtualization capability called Workload Partitions
(WPARs). Introduced with AIX Version 6, WPAR is independent of hardware features.
It enables consolidation of workloads on a single AIX operating system by providing
isolation between workloads running in different WPARs. From an application
perspective, each workload is running in its own operating system environment. A key
feature of WPAR is mobility, a running WPAR can be relocated from one VM to another
on the same operating system platform. This enables applications to be migrated to
another system during planned maintenance operations, to balance workloads, to
provision rapidly to meet growth dynamically, and to improve energy efficiency by
further consolidating on the fly during low load periods.
Systems Management
IBM Systems Director (Express, Standard, and Enterprise Editions) for Power servers
supports the PowerVM environment. It is IBM’s tool for heterogeneous platform
management of Power Systems, IBM System x, IBM System z, and IBM System Storage
systems. IBM Systems Director Editions support advanced management functions such
as system discovery, workload lifecycle management, health monitoring, system
updates, and topology mappings. It also provides the ability to take action on defined
event thresholds of monitored system components.
IBM Systems Director VMControl transforms Systems Director from managing
virtualization to using virtualization in order to better manage an entire IT
infrastructure. It is offered as a plug-in option included with the Systems Director
Standard and Enterprise Editions. Together, IBM Systems Director and VMControl help
reduce the total cost of ownership in a virtual environment by increasing asset
utilization and reducing the time and effort required to deploy workloads. Using them,
administrators can maintain high levels of availability through proactive monitoring
and collaborative troubleshooting, reducing costs further.
VMControl is available in three editions, to suit the varying levels of virtualization
deployment at client sites:
VMControl Express Edition provides basic VM lifecycle management.
28. Edison: IBM – Virtualization Performance White Paper Page 25
VMControl Standard Edition adds virtual appliance lifecycle management to capture
information from active systems and store it in a repository as reusable system
images (called virtual appliances).
VMControl Enterprise Edition adds system pool lifecycle management. It allows
users to create and manage system pools – or groups of virtual appliances deployed
across multiple physical servers – as easily as managing a single entity. The
advanced virtualization management capabilities of VMControl provide a pathway
for organizations to build sophisticated cloud computing environments.
PowerVM Virtualization Technology Advantages
PowerVM virtualization technology offers a secure virtualization environment built on
the advanced RAS features and excellent performance of the Power Systems platform.
PowerVM technology delivers numerous advantages, including:
High resource utilization — PowerVM technology makes the most efficient
utilization of IT investments by virtualizing resources that include processors,
memory, and I/O across multiple virtual machines.
Flexibility — PowerVM technology runs on all Power Systems servers, from blades
to high-end servers. It provides the greatest flexibility by supporting both dedicated
and shared resource models. Unlike VMware vSphere on the x86 platform,
PowerVM virtualization technology allows virtual machines to have all dedicated
resources (CPU, memory and I/O) , or all shared resources (virtual processors,
virtual memory, virtual I/O), or a mix of dedicated and shared resources in the same
LPAR.
Quality of Service — PowerVM technology ensures that workloads achieve high
quality of service even when LPARs share processors from a shared pool.
Scalability — PowerVM technology can reduce server purchases by supporting
partitions as small as 1/10 of a processor. POWER7 processor-based high-end
systems support up to 256 physical processors in a single LPAR and up to 1,000
partitions in a system.
Availability — Live Partition Mobility (LPM) helps eliminate planned downtime by
allowing partitions to be moved to another server while running, freeing hardware
for upgrades or maintenance without interrupting productive operations. In a
system pool, LPM enables autonomic load balancing across multiple systems.
Resource pools — IBM PowerVM technology has enhanced CPU and memory
affinity to improve performance of resource-intensive workloads, such as database
workloads, across multiple virtual machines sharing resources in a system. IBM
VMControl enhancements make it easier to deploy and manage large numbers of
29. Edison: IBM – Virtualization Performance White Paper Page 26
these virtual machines in a shared resource pool spanning one or more physical
systems.
Integrated Virtualization
Because of its level of sophistication and maturity, PowerVM technology is commonly
employed with enterprise-class applications and workloads. Power Systems servers
implement virtualization architecture with components embedded in the hardware,
firmware, and operating system software, all while running with significantly less
overhead. The capabilities of this integrated virtualization architecture are significantly
different and, in many areas, more advanced than VMware vSphere and other third-
party software, which must be installed on x86 hardware that leverages hardware-assist
virtualization optimizations.
Power Systems servers and PowerVM virtualization technology capabilities are more
granular and more closely integrated than are those of VMware vSphere or Microsoft
Hyper-V (or equivalent x86-based virtualization tools), or Oracle VM for SPARC. The
Power Systems platform also benefits from numerous industry-leading availability
optimization features. These distinctive capabilities have led to widespread adoption of
Power Systems servers to support the significantly more demanding performance and
uptime requirements of transaction- and database-intensive systems.
Greater Partition Isolation
By enabling “firmware-based” partitions, PowerVM technology provides greater
partition isolation than software-based virtualization technologies. Firmware-based
logical partitions (or virtual machines) reduce the potential for performance bottlenecks
and contribute to higher levels of availability and security than does software-based
virtualization. They also contribute to increased linear scalability.
Partitioning and Workload Management Integration
The importance of workload management cannot be overstated. Partitioning creates the
potential to utilize capacity very efficiently. The extent that this potential is realized in
practice depends on the mechanisms that allocate system resources, monitor, and
control workload execution across partitions. If these mechanisms are ineffective, a high
proportion of system capacity may remain idle at any given time.
Close integration of partitioning and workload management capabilities help prevent
surges in workloads running in individual partitions from impacting performance and
availability. POWER7 processor-based systems have a large number of cores per socket,
30. Edison: IBM – Virtualization Performance White Paper Page 27
abundant memory, and a great deal of I/O bandwidth per core. They also support a high
number of threads per core with simultaneous multithreading (SMT). Different
workloads can benefit from different processor core thread settings; processor-intensive
workloads might benefit from using one thread (SMT1) while workloads that are I/O-
intensive can benefit from using several. POWER7 processor-based systems support up
to an SMT4 setting.
Thus, POWER7 processor-based systems consolidate an unprecedented number of
partitions and can handle workload surges more effectively, for demonstrably higher
performance.
Accommodating Greater Consolidation Density
PowerVM technology is optimized to handle business-critical systems and complex
multi-partition production environments. IBM Power Systems and PowerVM
technologies allow a high consolidation ratio and thus greater levels of efficiency in
utilization.
31. Edison: IBM – Virtualization Performance White Paper Page 28
Conclusions
Virtualization has become a pervasive means of consolidating workloads on fewer
systems, controlling server sprawl and minimizing costs. With IBM Power Systems and
PowerVM virtualization technologies, organizations can achieve virtualization with
outstanding performance. For every benchmark and every scenario covered in this
paper, IBM Power Systems with PowerVM technology demonstrated superior
performance and greater efficiency in using system capacity at higher utilization, as well
as at higher resource contention (over-commit levels), and superior scaling with higher
throughput performance.
In summary, this study has shown that IBM POWER7 systems and PowerVM
technology have demonstrated:
Higher throughput performance for both AIM7 and TPoX benchmarks, ranging from
50 percent better to as much as 200 percent better.
Higher efficiency in resource over-commit mode (higher consolidation ratio), with
the response time on PowerVM virtualization technology two to six times shorter,
compared to response time for VMware vSphere 4.1 update 1, as the number of VMs
scaled from five to 40 VMs.
Higher processor affinity by default (40 VMs sharing eight cores), retaining 2.3 times
better performance than HP Intel/VMware vSphere 4.1 update 1 technologies, even
with reconfiguration using CPU affinity (VMware Scheduling Affinity group) on
VMware vSphere 4.1 update 1.
Efficient leveraging of maximum configured processor capacity.
Accurate accounting of resource usage within a VM.
Tighter integration across system, hypervisor, and guest OS.
Better performance overall than Intel Xeon 7560 /VMware vSphere 4.1 update 1.
The charts that follow summarize the results of the tests described in this paper.
The first — the AIM7 performance benchmark 32-core VM scaling (scale-up) results—
shows that PowerVM on POWER7 delivers superior scale-up efficiency that
outperforms VMware vSphere 4.1 update 1 by up to 115 percent while running the same
Linux workloads and virtualized resources.
32. Edison: IBM – Virtualization Performance White Paper Page 29
0
100000
200000
300000
400000
500000
600000
700000
Jobs/min
1VM 2VM 4VM 8VM 16VM 32VM
Number of Virtual Machines
AIM7 Performance Benchmark
32 VM Scale-out on 32 cores
VMware vSphere 4.1 on HP DL580(1vcpu) VMware vSphere 4.1 on HP DL580(2vcpu)
PowerVM on Power 750(1vcpu)
In fact, PowerVM on POWER7 retains its superiority even configured with an additional
virtual CPU per VM.
The second chart — the TPOX performance benchmark 5 VM per core (scale-out) —
shows that PowerVM on POWER7 delivers robust scale-out efficiency that outperforms
VMware vSphere 4.1 update 1 by up to 201 percent while running the same workloads
and virtualized resources.
33. Edison: IBM – Virtualization Performance White Paper Page 30
0
1000
2000
3000
4000
5000
Jobs/min
5VM 10VM 20VM 40VM
Number of Virtual Machines
TPOX Performance Benchmark
40 VM Scale-out on 8 cores
5 VMs per core
VMware vSphere 4.1 on HP DL580(1vcpu) VMware vSphere 4.1 on HP DL580(2vcpu)
PowerVM on Power 750(1vcpu)
PowerVM maximizes workload performance and system resources while running
multiple virtual machines on a core better than does VMware vSphere 4.1 update 1.
IBM Power Systems — with the superior performance of PowerVM virtualization
technology and with features such as reliability, security, high availability, and
resiliency — are well positioned for cloud computing and smarter planet solutions today
and in the future.
34. Edison: IBM – Virtualization Performance White Paper Page 31
Appendices
Appendix 1 — Benchmark Configuration Information
IBM started competitive research on PowerVM virtualization in 2009 and published two
papers 13 comparing IBM POWER processor-based systems and PowerVM virtualization
technologies to Microsoft Hyper-V and VMware vSphere 4.0 update 1 running on an HP
ProLiant DL 370 G6/ Intel Xeon 5570 processors. Both these studies, which show the
superior performance of POWER processors and PowerVM technology, took a
simplified approach to answering the two most commonly expressed considerations in
deploying virtualization technologies:
1. How efficient is the technology?
2. How well does the technology scale?
The current study builds upon those simple premises to include two additional
considerations:
1. How efficient is the technology when resources are in high contention?
2. How well does it scale as virtual machine density increases?
Test Bed Setup
The servers employed for this study were chosen for their equivalencies from the
standpoint of core and socket count.
IBM POWER7 Processor-Based Server
The IBM POWER7 processor-based IBM Power 750 Express system was used in this
study to demonstrate the capabilities of IBM’s PowerVM virtualization technology. The
system was configured with four sockets, 3.5 GHz, 32 cores (eight per socket) supporting
up to four threads (SMT4) per core, and 512 GB of RAM.
13 A Comparison of PowerVM and x86-Based Virtualization Performance, Oct 2009
http://www-03.IBM.com/support/techdocs/atsmastr.nsf/WebIndex/WP101574
A Comparison of PowerVM and VMware Virtualization Performance, April 2010
http://www.spectrumconsulting.co.nz/aix/wp-content/uploads/PowerVM_VMware.pdf
35. Edison: IBM – Virtualization Performance White Paper Page 32
HP ProLiant DL580 G7 Intel Xeon X7560 (2.26GHz/8-core/24MB/130W)
Processor
HP ProLiant DL580 G7 is a rack-mounted, high-performance Intel Xeon 7560-based
server; this system was selected to demonstrate the capabilities of VMware vSphere 4.1
update 1 virtualization technologies. The system was configured with four sockets, with
eight cores each, supporting up to two threads per core (HT mode). The system was also
enabled for Turbo Mode, Intel VTx with EPT HW Virtualization assist.
Infrastructure Configuration
System Configuration Storage Configuration
IBM Power 750, 3.5 GHz, eight cores per
socket
POWER7 Processors, 128 GB RAM per
socket.
IBM DS4800 (4 GB cache), one 4 Gb Fiber
Channel adapter.
Each array has 12 (32 GB) disks using
RAID5.
Each array is shared by four virtual
machines, each getting 40 GB virtual
disk space.
HP ProLiant DL 580 G7, 2.26 GHz, eight
cores / 24 MB (four sockets) Intel Xeon
7560 Processors, 512 GB system RAM.
IBM DS4800 (4 GB cache), one 4 Gb Fiber
Channel adapter.
Each array has 12 (32 GB) disks using
RAID5.
Each array is shared by four virtual
machines, each getting 40 GB virtual
disk space.
Software Used
Category PowerVM Technology VMware vSphere
Hypervisor Power Hypervisor (IBM Power
750 in-built hypervisor)
VMware vSphere 4.1 Update 1
Guest OS SuSE 11, SP1
AIX 7.1
SuSE 11, SP1 GA x86_64
RHEL6 GAx86_64
Middleware IBM DB2 v9.7 IBM DB2 v9.7
36. Edison: IBM – Virtualization Performance White Paper Page 33
VMware vSphere 4.1 update 1 Virtual Machine Technical Configuration Details
1. VMware Virtual Machine was created using Virtual Machine version 7, which is
compatible with vSphere 4.0 hosts and greater, and provided greater virtual machine
functionality than earlier versions.
2. A Virtual Disk LSI Logic Parallel adapter was used. It was noted (in vSphere Help)
that the LSI Logic Parallel adapter and the LSI Logic SAS adapter offer equivalent
performance.
3. The VMware vSphere 4.1 update 1 system was updated to the latest VMware Tools.
4. Scheduling affinity group was used to bind cores to virtual machines.
5. Memory affinity was enabled.
6. vSpheretop –ab and vmstat were collected from the virtual machine.
37. Edison: IBM – Virtualization Performance White Paper Page 34
Appendix 2 — General Benchmark Descriptions
The performance tests described here characterized hypervisor efficiency and scalability.
Both benchmarks stress the entire stack of application, middleware, OS, and
hypervisors. Neither benchmark requires external clients to drive the load.
The following tests were conducted:
1. Demonstrate the effect that adding virtual processors incrementally has on
throughput performance in a single VM. Where direct performance comparisons
were to be made, the testing team limited the number of virtual processors to the
lesser of the maximum supported across the two virtualization platforms.
Note: While consolidation deployments by definition entail multiple VMs,
understanding how each technology deals with processor scaling in the simplest
possible configuration within a single VM provides insights into hypervisor
efficiency.
2. Demonstrate the effect that adding VMs has on throughput performance.
Throughput is monitored as the number of VMs is scaled from 1 to n. Throughput in
each VM was also evaluated using varying numbers of virtual processors and load.
Note: This will show the effect of multiple VMs running on a system in a non-
over-commit as well as an over-commit resource environment.
Each of these tests (1 and 2) was run on different workloads. The tests included running
the same workloads (homogeneous) or a mix of workloads (heterogeneous) across
multiple VMs concurrently. This revealed how each class of workload is affected by the
respective types of resource scaling in each test.
To ensure fair comparison across platforms and to remove variability across each set of
tests, the following actions were taken:
Similar VM configurations were deployed in terms of virtual processors and
memory allocated per VM.
The same set of “benchmark parameters” was used across platforms.
Tuning was performed based on best practices of respective platforms (VMware
vSphere 4.1 update 1, RHEL 6.0, AIX 7.1, DB2 tuning).
38. Edison: IBM – Virtualization Performance White Paper Page 35
Addendum:
Benchmarks Comparing PowerVM on Power 750
with vSphere 5 on Intel Westmere EX-Based System
At the time that the systems were tested for this white paper, VMware vSphere 4.1
update 1 was most current version available from VMware. Subsequently, VMware
announced a significant new release: version 5, which includes nearly 200 new or
enhanced features and capabilities such areas as deployment, storage, management,
availability, and security.
The central improvement to virtualization and consolidation capacity (and thus to this
white paper) in version 5 is that vSphere VMs can now be configured with up to 1
terabyte of memory and 32 virtual CPUs. VMware is touting this version (“supporting
VMs that are up to four times more powerful than previous versions”) as the way to
accelerate a data center’s move to a more efficient cloud infrastructure.
Edison sought to assess whether a commensurate improvement in throughput
performance accompanied vSphere’s greater vCPU capacity. It also wanted to
investigate whether PowerVM retains the considerable advantage over vSphere in
performance and hardware utilization that it demonstrated in the original edition of the
white paper.
Summary
Edison wished to evaluate a comparison of PowerVM performance against the latest
solutions that the x86-based VMware platform has to offer on a similar class of server
hardware. Therefore, on the vSphere side, the tests described in this addendum were
run on an HP ProLiant DL580 G7 E7-4870 server, which features the X5600-series Xeon
chip architecture (Westmere-EX) and contains 40 cores (10 cores per chip). As in the
previously published edition of this white paper, PowerVM was run on an IBM Power
750 system, based on the POWER7 processor.
Edison reviewed and analyzed the results of the open source AIM7 benchmark testing
applied to the three virtualization solutions — VMware vSphere 4.1 update 1, VMware
vSphere 5, and PowerVM — in a scale-up scenario of 32 vCPUs within a single VM. A
second test — a vCPU scale-out scenario of 32 vCPUs using eight VMs — was evaluated
that compares vSphere 5 with PowerVM.
39. Edison: IBM – Virtualization Performance White Paper Page 36
The key findings, summarized, are as follows:
In terms of throughput performance, vSphere 5 demonstrated no improvement over
vSphere 4.1 update 1; in fact, it demonstrated slightly lower performance overall.
PowerVM on Power 750 outperforms vSphere 5 on the Intel-based system by up to
131 percent, running the same workloads across virtualized resources.
PowerVM on Power 750 outperforms VMware vSphere 5 by up to 525 percent when
running multiple VMs and workloads, despite the test Intel x86 system (Westmere-
EX) containing a greater number of cores (40 versus 32).
The benchmark results reveal that PowerVM virtualization technology on POWER7
processor-based platforms retains as great a performance advantage over VMware
vSphere 5 on Intel x86 platforms as it does over VMware vSphere 4.1 update 1.
Therefore, PowerVM virtualization technology remains the consolidation system of
choice for organizations wishing to realize the full advantages of greater VM density, as
was demonstrated in the earlier edition of the white paper.
The Benchmarks
To obtain the results presented in this addendum, the AIM7 benchmark (described on
Page 7 of this white paper) was employed in two different scenarios. Once again, the
Power Linux version used on PowerVM virtualization technology was SuSE 11 SP1.
SuSE 11 SP1 x86_64 was used as guest OS on VMware vSphere 4.1 update 1.
Scale-Up Benchmark
This scenario tested three platforms: VMware vSphere 4.1 update 1 and VMware
vSphere 5, each running on an HP ProLiant DL580 G7 E7-4870 server; and PowerVM
running on an IBM Power 750 system.
AIM7 was scaled in one, two, four, eight, 16, and 32 vCPUs within a single VM. Scaling
was near linear on both the POWER7 processor/PowerVM technology-based systems
and both of the Intel/VMware vSphere platforms.
Running the same workloads across virtualized resources, the POWER7
processor/PowerVM system demonstrated superior performance well over twice the
percentage of either Intel/VMware vSphere 4.1 or Intel/VMware vSphere 5 at one, two,
four, and eight vCPU configurations. At the top end for vSphere 4.1 update 1 (8 vCPUs),
PowerVM technology demonstrated a 103 percent advantage; while at the top end for
vSphere 5 , PowerVM technology demonstrated a substantial 131 percent advantage
(Figure 1).
40. Edison: IBM – Virtualization Performance White Paper Page 37
NOTE: The VM and vCPU configurations and the numeric test result data
points can be found in the tables following the graphs for both tests in this
addendum.
0
100000
200000
300000
400000
500000
600000
Jobs/min
1 2 4 8 16 32
# of vcpus
AIM7 SingleVM Scale-up
PowerVM vSphere5 vSphere4.1
Figure 1. AIM7 Single VM Scale-Up
Table 1 shows the details on throughput and CPU utilization for each configuration. As
in the tests conducted for the original study, the VMs on all three platforms were
configured as close to identically as possible. In the case of PowerVM, each logical
partition (LPAR) was given 3 GB RAM, 1, 2, 4, 8, 16 and 32 virtual processors. In the case
of VMware vSphere, each VM was given 3 GB RAM, 1, 2, 4, 8, 16 and 32 virtual
processors with the remainder left at default options.
41. Edison: IBM – Virtualization Performance White Paper Page 38
System Configuration for AIM7
Benchmark (1 to 32 VM Scaling)
Cores in
the
System
Virtual
CPUs Jobs/Min
% CPU
Utilization
IBM Power 750 3.6 GHz, 4 sockets, 384 GB
RAM, SMT4-enabled, PowerVM and
SLES11 SP1 (Power Linux)
One core one vCPU 32 1 19027 3.09%
Two cores two vCPUs 32 2 37751 6.19%
Four cores four vCPUs 32 4 74624 12.38%
Eight cores four vCPUs 32 8 144680 25.00%
16 cores 16 vCPUs 32 16 287559 50.00%
32 cores 32 vCPUs 32 32 540666 98.00%
HP ProLiant DL580 G7, Intel Xeon E7 4870
2.4 GHz, 640 GB RAM, 4 sockets, VMware
vSphere 4.1 update 1 and SLES11 SP1
(x86_64)
One vCPU 40 1 9173 2.90%
Two vCPUs 40 2 18287 5.48%
Four vCPUs 40 4 36231 10.49%
Eight vCPUs 40 8 71239 20.42%
HP ProLiant DL580 G7, Intel Xeon E7 4870
2.4 GHz, 640 GB RAM, 4 sockets, VMware
vSphere 5 and SLES11 SP1 (x86_64)
One socket one vCPU 40 1 9018 4.42%
One socket two vCPUs 40 2 17898.7 6.85%
One socket four vCPUs 40 4 35379 11.79%
One socket eight vCPUs 40 8 69077 21.62%
One socket 16 vCPUs 40 16 130770 41.24%
One socket 32 vCPUs 40 32 233684 80.34%
Table 1. AIM7 Benchmark Single Virtual Machine Scale-Up
An interesting revelation can be seen more clearly in the table than the graph, where the
former top limit of eight vCPUs for vSphere has been highlighted in each version. Not
only is vSphere 5 no better than vSphere 4.1 update 1 in terms of scale-up efficiency as
reflected in throughput performance, it is actually slightly less efficient.
42. Edison: IBM – Virtualization Performance White Paper Page 39
As explained on Page 10 of this white paper, many factors contribute to this superior
performance, including: PowerVM technology efficiency, IBM POWER7 SMT4
technology, IBM POWER7 core efficiency and IBM POWER7 higher core frequency.
Furthermore, PowerVM on Power 750 systems can leverage all system resources in order
to maximize workload performance.
Scale-Out Benchmark
This scenario tested VMware vSphere 5 running on an HP ProLiant DL580 G7 E7-4870
server against PowerVM running on an IBM Power 750 system. AIM7 was scaled to
eight VMs using 32 vCPUs per VM, configuring a total of 256 vCPUs. Running the same
workloads across virtualized resources, the POWER7 processor/PowerVM -based
system demonstrated a very substantial 525 percent advantage over Intel/VMware
vSphere 5.
0
100000
200000
300000
400000
500000
600000
Jobs/Min
8 VM
AIM7 Multiple VM scale-out
(32 vcpus per VM)
PowerVM vSphere5
Figure 2. AIM7 Multiple VM Scale-Out
It is important to note that the difference in efficient use of hardware resources between
the two systems. The server used to run the vSphere workloads contains more cores (40)
than does the Power 750 hardware. Yet it is unable to leverage the greater hardware
capacity to achieve superior or even comparable throughput performance. Table 2,
below, shows that the workload on each platform consumed all the capacity in the
system (i.e., 100 percent CPU utilization).
43. Edison: IBM – Virtualization Performance White Paper Page 40
System Configuration for
AIM7 Benchmark
(1 to 32 VM Scaling)
Cores
in the
System
# of
VMs
Virtual
CPUs Jobs/Min
% CPU
Utilization
IBM Power 750 3.6 Ghz, 4
sockets, 384 GB RAM, SMT4-
enabled, Power VM and
SLES11 SP1 (Power Linux)
Eight VM - each VM has four
cores / 32 vCPUs
32 8 256 500,721.10 100%
HP Proliant DL580 G7, Intel
Xeon E7 4870 2.4 Ghz, 640 GB
RAM, 4 sockets, VMware
vSphere 5, SLES11 SP1 (x84 64)
Eight VM - each VM has 1
socket / 32 vCPUs
40 8 256 79,626.10 100%
Table 2. AIM7 Benchmark Multiple Virtual Machine Scale-Out
Conclusion
As shown in this addendum, IBM PowerVM on POWER 7-based systems demonstrate
the same distinct and considerable advantages over VMware vSphere 5 in workload
throughput performance on x86 Intel-based platforms as over vSphere 4.1 update 1. The
edge that POWER7/PowerVM has over Intel/vSphere remains linearly substantial as
VMs and vCPUs are scaled, becoming ever more significant as workloads increase.
A data center scaling up to a cloud-supporting infrastructure or large-scale enterprise
applications would have to purchase, deploy, provision, and maintain a good deal more
hardware and software to achieve the same workload productivity possible with
PowerVM on POWER7. This dilutes the multiple cost advantages delivered via
consolidation, and can increase total cost of ownership in the form of a more complex
infrastructure to manage and more time devoted to systems maintenance.
POL03090-USEN-02