There are many systems that handle heavy UDP transactions, like DNS and RADIUS servers. Nowadays 10G Ethernet NICs are so widely deployed and even 40G and 100G NICs are out there. This makes it difficult for a single server to get enough performance to consume link bandwidth with short packet transactions. Since usually Linux is by default not tuned for dedicated UDP servers, we are investigating ways to boost such UDP transaction performance.
This talk will show how we analyze the bottleneck and give tips we found to make the performance better. Also we discuss challenges to improve it even more.
This presentation was given at LinuxCon Japan 2016 by Toshiaki Makita
Tutorial: Using GoBGP as an IXP connecting routerShu Sugimoto
- Show you how GoBGP can be used as a software router in conjunction with quagga
- (Tutorial) Walk through the setup of IXP connecting router using GoBGP
Moved to https://speakerdeck.com/ebiken/zebra-srv6-cli-on-linux-dataplane-enog-number-49
Introduction to SRv6, Linux SRv6 implementation and how to add SRv6 CLI to Zebra 2.0 Open Source Network Operation Stack.
Presented at ENOG (Echigo NOG) #49.
The TC Flower Classifier allows control of packets based on flows determined by matching of well-known packet fields and metadata. This is inspired by similar flow classification described by OpenFlow and implemented by Open vSwitch. Offload of the TC Flower classifier and related modules provides a powerful mechanism to both increase throughput and reduce CPU utilisation for users of such flow-based systems. This presentation will give an overview of the evolution of offload of the TC Flower classifier: where it came from, the current status and possible future directions.
SOSCON 2019.10.17
What are the methods for packet processing on Linux? And how fast are each packet processing methods? In this presentation, we will learn how to handle packets on Linux (User space, socket filter, netfilter, tc), and compare performance with analysis of where each packet processing is done in the network stack (hook point). Also, we will discuss packet processing using XDP, an in-kernel fast-path recently added to the Linux kernel. eXpress Data Path (XDP) is a high-performance programmable network data-path within the Linux kernel. The XDP is located at the lowest level of access through SW in the network stack, the point at which driver receives the packet. By using the eBPF infrastructure at this hook point, the network stack can be expanded without modifying the kernel.
Daniel T. Lee (Hoyeon Lee)
@danieltimlee
Daniel T. Lee currently works as Software Engineer at Kosslab and contributing to Linux kernel BPF project. He has interest in cloud, Linux networking, and tracing technologies, and likes to analyze the kernel's internal using BPF technology.
Using eBPF for High-Performance Networking in CiliumScyllaDB
The Cilium project is a popular networking solution for Kubernetes, based on eBPF. This talk uses eBPF code and demos to explore the basics of how Cilium makes network connections, and manipulates packets so that they can avoid traversing the kernel's built-in networking stack. You'll see how eBPF enables high-performance networking as well as deep network observability and security.
Tutorial: Using GoBGP as an IXP connecting routerShu Sugimoto
- Show you how GoBGP can be used as a software router in conjunction with quagga
- (Tutorial) Walk through the setup of IXP connecting router using GoBGP
Moved to https://speakerdeck.com/ebiken/zebra-srv6-cli-on-linux-dataplane-enog-number-49
Introduction to SRv6, Linux SRv6 implementation and how to add SRv6 CLI to Zebra 2.0 Open Source Network Operation Stack.
Presented at ENOG (Echigo NOG) #49.
The TC Flower Classifier allows control of packets based on flows determined by matching of well-known packet fields and metadata. This is inspired by similar flow classification described by OpenFlow and implemented by Open vSwitch. Offload of the TC Flower classifier and related modules provides a powerful mechanism to both increase throughput and reduce CPU utilisation for users of such flow-based systems. This presentation will give an overview of the evolution of offload of the TC Flower classifier: where it came from, the current status and possible future directions.
SOSCON 2019.10.17
What are the methods for packet processing on Linux? And how fast are each packet processing methods? In this presentation, we will learn how to handle packets on Linux (User space, socket filter, netfilter, tc), and compare performance with analysis of where each packet processing is done in the network stack (hook point). Also, we will discuss packet processing using XDP, an in-kernel fast-path recently added to the Linux kernel. eXpress Data Path (XDP) is a high-performance programmable network data-path within the Linux kernel. The XDP is located at the lowest level of access through SW in the network stack, the point at which driver receives the packet. By using the eBPF infrastructure at this hook point, the network stack can be expanded without modifying the kernel.
Daniel T. Lee (Hoyeon Lee)
@danieltimlee
Daniel T. Lee currently works as Software Engineer at Kosslab and contributing to Linux kernel BPF project. He has interest in cloud, Linux networking, and tracing technologies, and likes to analyze the kernel's internal using BPF technology.
Using eBPF for High-Performance Networking in CiliumScyllaDB
The Cilium project is a popular networking solution for Kubernetes, based on eBPF. This talk uses eBPF code and demos to explore the basics of how Cilium makes network connections, and manipulates packets so that they can avoid traversing the kernel's built-in networking stack. You'll see how eBPF enables high-performance networking as well as deep network observability and security.
Linux offers an extensive selection of programmable and configurable networking components from traditional bridges, encryption, to container optimized layer 2/3 devices, link aggregation, tunneling, several classification and filtering languages all the way up to full SDN components. This talk will provide an overview of many Linux networking components covering the Linux bridge, IPVLAN, MACVLAN, MACVTAP, Bonding/Team, OVS, classification & queueing, tunnel types, hidden routing tricks, IPSec, VTI, VRF and many others.
OVN (Open Virtual Network) を用いる事により、OVS (Open vSwitch)が動作する複数のサーバー（Hypervisor/Chassis）を横断する仮想ネットワークを構築する事ができます。
本スライドはOVNを用いた論理ネットワークの構成と設定サンプルのメモとなります。
Using OVN, you can build logical network among multiple servers (Hypervisor/Chassis) running OVS (Open vSwitch).
This slide is describes HOW TO example of OVN configuration to create 2 logical switch connecting 4 VMs running on 2 chassis.
Taking Security Groups to Ludicrous Speed with OVS (OpenStack Summit 2015)Thomas Graf
Open vSwitch (OVS) has long been a critical component of the Neutron's reference implementation, offering reliable and flexible virtual switching for cloud environments.
Being an early adopter of the OVS technology, Neutron's reference implementation made some compromises to stay within the early, stable featureset OVS exposed. In particular, Security Groups (SG) have been so far implemented by leveraging hybrid Linux Bridging and IPTables, which come at a significant performance overhead. However, thanks to recent developments and ongoing improvements within the OVS community, we are now able to implement feature-complete security groups directly within OVS.
In this talk we will summarize the existing Security Groups implementation in Neutron and compare its performance with the Open vSwitch-only approach. We hope this analysis will form the foundation of future improvements to the Neutron Open vSwitch reference design.
Docker Networking with New Ipvlan and Macvlan DriversBrent Salisbury
Docker Networking presentation at ONS2016.
Docker Macvlan and Ipvlan Networking Drivers Experimental Readme:
github.com/docker/docker/blob/master/experimental/vlan-networks.md
Kernel requirements for Ipvlan mode is v4.2+, Macvlan mode is v3.19.
If using Virtualbox to test with, use NAT mode interfaces unless you have multiple MAC addresses working in your setup. Use the 172.x.x.x subnet and gateway used by the VBox NAT network. Vmware Fusion works out of the box.
Here is a screenshot of a VirtualBox NAT interface:
https://www.dropbox.com/s/w1rf61n18y7q4f1/Screenshot%202016-03-20%2001.55.13.png?dl=0
Linux is usually at the edge of implementing new storage standards, and NVMe over Fabrics is no different in this regard. This presentation gives an overview of the Linux NVMe over Fabrics implementation on the host and target sides, highlighting how it influenced the design of the protocol by early prototyping feedback. It also tells how the lessons learned during developing the NVMe over Fabrics, and how they helped reshaping parts of the Linux kernel to support NVMe over Fabrics and other storage protocols better."
This presentation was delivered at LinuxCon Japan 2016 by Christoph Hellwig
SR-IOV ixgbe Driver Limitations and ImprovementLF Events
SR-IOV is a device virtualization technology, it’s mainly used for improving network performance of virtual machines. However, SR-IOV has some limitations which come from hardware and/or driver implementation. For certain use case, such as Network Function Virtualization(NFV), those limitations are critical to provide services. Intel 10Gb NIC, Niantic(82599), has such limitations(e.g. VLAN filtering, multicast promiscuous) for NFV use case.
This presentation will show the limitations and issues and how they are being addressed, then explain how implements VF multicast promiscuous mode support in ixgbe driver and VF trust, iproute2 functionality enhancement.
This presentation was delivered at LinuxCon Japan 2016 by Hiroshi Shimamoto
Linux offers an extensive selection of programmable and configurable networking components from traditional bridges, encryption, to container optimized layer 2/3 devices, link aggregation, tunneling, several classification and filtering languages all the way up to full SDN components. This talk will provide an overview of many Linux networking components covering the Linux bridge, IPVLAN, MACVLAN, MACVTAP, Bonding/Team, OVS, classification & queueing, tunnel types, hidden routing tricks, IPSec, VTI, VRF and many others.
OVN (Open Virtual Network) を用いる事により、OVS (Open vSwitch)が動作する複数のサーバー（Hypervisor/Chassis）を横断する仮想ネットワークを構築する事ができます。
本スライドはOVNを用いた論理ネットワークの構成と設定サンプルのメモとなります。
Using OVN, you can build logical network among multiple servers (Hypervisor/Chassis) running OVS (Open vSwitch).
This slide is describes HOW TO example of OVN configuration to create 2 logical switch connecting 4 VMs running on 2 chassis.
Taking Security Groups to Ludicrous Speed with OVS (OpenStack Summit 2015)Thomas Graf
Open vSwitch (OVS) has long been a critical component of the Neutron's reference implementation, offering reliable and flexible virtual switching for cloud environments.
Being an early adopter of the OVS technology, Neutron's reference implementation made some compromises to stay within the early, stable featureset OVS exposed. In particular, Security Groups (SG) have been so far implemented by leveraging hybrid Linux Bridging and IPTables, which come at a significant performance overhead. However, thanks to recent developments and ongoing improvements within the OVS community, we are now able to implement feature-complete security groups directly within OVS.
In this talk we will summarize the existing Security Groups implementation in Neutron and compare its performance with the Open vSwitch-only approach. We hope this analysis will form the foundation of future improvements to the Neutron Open vSwitch reference design.
Docker Networking with New Ipvlan and Macvlan DriversBrent Salisbury
Docker Networking presentation at ONS2016.
Docker Macvlan and Ipvlan Networking Drivers Experimental Readme:
github.com/docker/docker/blob/master/experimental/vlan-networks.md
Kernel requirements for Ipvlan mode is v4.2+, Macvlan mode is v3.19.
If using Virtualbox to test with, use NAT mode interfaces unless you have multiple MAC addresses working in your setup. Use the 172.x.x.x subnet and gateway used by the VBox NAT network. Vmware Fusion works out of the box.
Here is a screenshot of a VirtualBox NAT interface:
https://www.dropbox.com/s/w1rf61n18y7q4f1/Screenshot%202016-03-20%2001.55.13.png?dl=0
Linux is usually at the edge of implementing new storage standards, and NVMe over Fabrics is no different in this regard. This presentation gives an overview of the Linux NVMe over Fabrics implementation on the host and target sides, highlighting how it influenced the design of the protocol by early prototyping feedback. It also tells how the lessons learned during developing the NVMe over Fabrics, and how they helped reshaping parts of the Linux kernel to support NVMe over Fabrics and other storage protocols better."
This presentation was delivered at LinuxCon Japan 2016 by Christoph Hellwig
SR-IOV ixgbe Driver Limitations and ImprovementLF Events
SR-IOV is a device virtualization technology, it’s mainly used for improving network performance of virtual machines. However, SR-IOV has some limitations which come from hardware and/or driver implementation. For certain use case, such as Network Function Virtualization(NFV), those limitations are critical to provide services. Intel 10Gb NIC, Niantic(82599), has such limitations(e.g. VLAN filtering, multicast promiscuous) for NFV use case.
This presentation will show the limitations and issues and how they are being addressed, then explain how implements VF multicast promiscuous mode support in ixgbe driver and VF trust, iproute2 functionality enhancement.
This presentation was delivered at LinuxCon Japan 2016 by Hiroshi Shimamoto
Evaluating MLC vs TLC vs V-NAND for Enterprise SSDs – WhitepaperSamsung Business USA
Choosing the right grade of SSD for your enterprise applications requires an understanding of the differences between various NAND technologies. This whitepaper explains the fundamental characteristics of 2-bit-per-cell MLC and 3-bit TLC NAND types, as well as the inherent scaling limitations of planar NAND and how vertical NAND (V-NAND) technology solves these issues with an innovative vertical structure.
Scale-out Storage on Intel® Architecture Based Platforms: Characterizing and ...Odinot Stanislas
Issue du salon orienté développeurs d'Intel (l'IDF) voici une présentation plutôt sympa sur le stockage dit "scale out" avec une présentation des différents fournisseurs de solutions (slide 6) comprenant ceux qui font du mode fichier, bloc et objet. Puis du benchmark sur certains d'entre eux dont Swift, Ceph et GlusterFS.
IRQs: the Hard, the Soft, the Threaded and the PreemptibleAlison Chaiken
The Linux kernel supports a diverse set of interrupt handlers that partition work into immediate and deferred tasks. The talk introduces the major varieties and explains how IRQs differ in the real-time kernel.
Talk from Embedded Linux Conference, http://elcabs2015.sched.org/event/551ba3cdefe2d37c478810ef47d4ca4c?iframe=no&w=i:0;&sidebar=yes&bg=no#.VRUCknSQQQs
NVMe PCIe and TLC V-NAND It’s about TimeDell World
With an explosion in data and the relentless growth in demand for information, identifying a much more efficient means of storage has become extremely important. In this session, we will cover the key drivers behind the need for faster and more efficient storage. NVMe, a standardized protocol for PCIe-based storage, is giving users the huge leap in bandwidth required for demanding applications. Samsung, who makes the fastest NVMe SSDs on the market, will cover the benefits enabled by such technology, in areas such as fraud prevention and surgical procedures.
The technology behind flash drives – NAND memory – will be spotlighted in this presentation. Memory manufacturers have improved NAND’s value by migrating from single-level-cell to multi-level-cell designs, but the most significant evolution will be a marriage of triple-level-cell and V-NAND flash manufacturing technologies. Samsung will also provide an overview of the prospects for TLC V-NAND with mobile device manufacturers, while examining the strong potential for a much wider TLC V-NAND market in data centers.
Comparing file system performance: Red Hat Enterprise Linux 6 vs. Microsoft W...Principled Technologies
Understanding how your choice of operating system affects file system I/O performance can be extremely valuable as you plan your infrastructure. Using the IOzone Filesystem Benchmark in our tests, we found I/O performance of file systems on Red Hat Enterprise Linux 6 was better than the file systems available on Microsoft Windows Server 2012, with both out-of-the-box and optimized configurations. Using default native file systems, ext4 and NTFS, we found that Red Hat Enterprise Linux 6 outperformed Windows Server 2012 by as much as 65.2 percent out-of-the-box, and as much as 33.4 percent using optimized configurations. Using more advanced native file systems, XFS and ReFS, we found that Red Hat Enterprise Linux 6 outperformed Windows Server 2012 by as much as 31.9 percent out-of-the-box, and as much as 48.4 percent using optimized configurations.
Many applications are ultimately constrained by the I/O subsystems on which they reside, making it crucial to choose the best combination of file system and operating system to achieve peak I/O performance. As our testing demonstrates, with the file system performance that Red Hat Enterprise Linux 6 can deliver, you are less likely to see I/O bottlenecks and can potentially accelerate I/O performance in your datacenter.
VMworld 2015: Extreme Performance Series - vSphere Compute & MemoryVMworld
In this session we'll dive deep into how the vSphere compute and memory schedulers work to provide the same level of performance as bare metal. Hosted by two outstanding performance engineers, they will review concepts like how and when vSphere schedules vCPUs, how virtual machines are idles, understand virtual machine memory overhead and how large memory pages help or hurt performance. If you want to understand what vSphere does at an atomic level you don't want to miss this advanced session.
Ceph on Intel: Intel Storage Components, Benchmarks, and ContributionsRed_Hat_Storage
At Red Hat Storage Day Minneapolis on 4/12/16, Intel's Dan Ferber presented on Intel storage components, benchmarks, and contributions as they relate to Ceph.
This IT Brand Pulse mini-report includes 2016 market leader data from the independent, non-sponsored survey covering six categories of brand leadership–Market, Price, Performance, Reliability, Service & Support and Innovation–for thirteen classes (plus two special achievement) of Flash Storage/NVMe.
Complete survey data for each product category is available. Please contact us at info@itbrandpulse.com for information and pricing.
Read the 2016 Flash Storage-NVMe Brand Leader Survey Press Release: http://www.itbrandpulse.com/press-release/it-pros-choose-2016-flash-storagenvme-brand-leaders/
One of the great challenges of of monitoring any large cluster is how much data to collect and how often to collect it. Those responsible for managing the cloud infrastructure want to see everything collected centrally which places limits on how much and how often. Developers on the other hand want to see as much detail as they can at as high a frequency as reasonable without impacting the overall cloud performance.
To address what seems to be conflicting requirements, we've chosen a hybrid model at HP. Like many others, we have a centralized monitoring system that records a set of key system metrics for all servers at the granularity of 1 minute, but at the same time we do fine-grained local monitoring on each server of hundreds of metrics every second so when there are problems that need more details than are available centrally, one can go to the servers in question to see exactly what was going on at any specific time.
The tool of choice for this fine-grained monitoring is the open source tool collectl, which additionally has an extensible api. It is through this api that we've developed a swift monitoring capability to not only capture the number of gets, put, etc every second, but using collectl's colmux utility, we can also display these in a top-like formact to see exactly what all the object and/or proxy servers are doing in real-time.
We've also developer a second cability that allows one to see what the Virtual Machines are doing on each compute node in terms of CPU, disk and network traffic. This data can also be displayed in real-time with colmux.
This talk will briefly introduce the audience to collectl's capabilities but more importantly show how it's used to augment any existing centralized monitoring infrastructure.
Speakers
Mark Seger
What do data center operators need to know when deploying Hadoop in the Data Center? Multi-tenancy, network topology, workload types, and myriad other factors affect the way applications run and perform in the data center. Understanding performance characteristics of the distributed system is key to not only optimize for Hadoop, but allows Hadoop to seamlessly operate side-by-side existing applications.
6th floorsharingsession ep 1 - networking - arp v 1.0A Achyar Nur
Protocol that allows dynamic distribution of the information needed to build tables to translate an address A in protocol P’s address space into a 48.bit Ethernet address. (RFC826)
ARP Terminology, How ARP works, and etc
How deep is your buffer – Demystifying buffers and application performanceCumulus Networks
Packet buffer memory is among the oldest topics in networking, and yet it never seems to fade in popularity. Starting from the days of buffers sized by the bandwidth delay product to what is now called "buffer bloat", from the days of 10Mbps to 100Gbps, the discussion around how deep should the buffers be never ceases to evoke opinionated responses.
In this webinar we will be joined by JR Rivers, co-founder and CTO of Cumulus Networks, a man who has designed many ultra-successful switching chips, switch products, and compute platforms, to discuss the innards of buffering. This webinar will cover data path theory, tools to evaluate network data path behavior, and the configuration variations that affect application visible outcomes.
Kernel address sanitizer (KASan) is a dynamic memory error detector for finding out-of-bounds and use-after-free bugs in Linux kernel. It uses shadow memory to record whether each byte of memory is safe to access and uses compile-time instrumentation to check shadow memory
on each memory access. In this presentation Alexander Popov will describe the successful experience of porting KASan to a bare-metal hypervisor: the main steps, pitfalls and the ways to make KASan checks much more strict and multi-purpose.
This presentation was delivered at LinuxCon Japan 2016 by Alexander Popov
In computer/mobile product world, due to the stability, project timeline, etc considerations, latest upstream kernel isn't their preference. The long term stable kernel is. But if you want to some latest features which only is in upstream kernel. You have to backport them to old stable kernel.
This presentation will share the kernel feature backport experience with audience, help them understand how to do backports quickly and effectively without detailed knowledge of the target feature, thus giving more flexibility and Improving productivity when making products.
It will talk by some examples, to discuss how to get info from backport request, how to find necessary commits, how to get dependency, how to resolve conflicts, and finally how to test it.
This presentation was delivered by Alex Shi at LinuxCon Japan 2016.
Open Source Software has undoubtedly enabled the SDN and NFV transformation. The Controller projects lead the way, including OpenDaylight, ONOS, and Ryu, among others. Benefits of open source for both individuals and their organizations are well documented, including collective innovation, R&D efficiency, individual recognition, and the opportunity to contribute to the community.
OPNFV established an open reference platform for NFV; the initial releases are validating open source building blocks that make up the NFV Infrastructure (NFVI). As a result, OPNFV expanded its charter to address NFV Management and Orchestration (MANO), which serves as the boundary between services and the network.
Not surprisingly, the industry responded with a new series of open source orchestration projects. In this presentation we examine a new Linux Foundation Collaborative Project- OPEN-O- for end-to-end service orchestration over NFV Infrastructure, as well as SDN and legacy networks. After sharing the vision and target use cases, we will examine the functional architecture and technology approach, and provide an update on the project.
Cloud Native Computing Foundation (CNCF) is founded for a microservice based new computing paradigm. Fujitsu joined CNCF since last December expecting to establish a new open standard platform. In this session, we'd like to share idea behind our participation and technical topics we're now investigating.
This presentation was delivered at LinuxCon Japan 2016 by Hiroyuki Kamezawa and Wolfgang Ries.
The IoT is becoming extremely popular keyword in the industries while there are many different interpretations or various definitions. However, one common requirement is that it requires many Sensor devices connected to Linux devices. The user space drivers for GPIO, I2C/SPI and UART sensors in the past were implemented separately from scratch delicately for each product. This will cause significant challenge of software engineering overhead while GPIO, I2C/SPI and UART sensors are dramatically increasing which have to be supported. The IoTDK is one of the library to provide portability of sensors' driver to solve the situation.
The talk will includes guide of IoTDK and 96Boards and tutorial of programing I2C and GPIO devices. Targeted audiences are who are interested in IoT sensors or who would like to move from Arduino and Raspberry Pi to modern ARM CPU effectively.
This presentation was delivered at LinuxCon Japan 2016 by Akira Tsukamoto.
This is a BoF session to talk about the way to take over the exiting experience to the next generation. Many of you will come to the age which you start considering the way to continue what you are doing. Especially if it is your mission of your belonging organization such as company, university or community, it will become serious problem. In this session we would like to exchange our thoughts on this issue. At the same time, a newly created Operating System for education will be introduced.
This BOF occurred at LinuxCon Japan under the direction of Satoru Ueda
Learning From Real Practice of Providing Highly Available Hybrid Cloud Servic...LF Events
Fujitsu applies OpenStack for providing hybrid cloud service.
In this presentation, Miyashita will introduce learning from real practice of providing highly
available hybrid cloud service with OpenStack Neutron.
He will talk issues and solutions which Fujitsu faced through providing
hybrid(public/private) cloud service.
- How to build multiple OpenStack-based datacenters for public cloud with high availability
- How to build hybrid cloud environment(Connecting public cloud and on-premise datacenters)
- High available functionality spanning multiple datacenters(ex.loadbalancing service, security group)
This presentation was delivered at LinuxCon Japan 2016 by Kazuhiro Miyashita
Generating a Reproducible and Maintainable Embedded Linux Environment with Po...LF Events
For civil infrastructure system related products, kernel and open source software included in the system requires not only industrial grade but also super long term support. We have developed a meta layer for Poky build system which can uses the Debian’s source codes to share long term maintenance effort. However, there is an issue on source code management for product development which relates on reproducibility and maintainability. We have some experiences in product maintenance phase, for example, a bug occurred more than three years later after the product was released. In such kind of case, if we can reproduce the Linux environment for any older version, it is useful to find the source of issue.
In this talk, we will explain how to manage source codes and how to generate an embedded Linux environment with Poky and Deby for long term maintenance.
This presentation was delivered at LinuxCon Japan 2016 by Kazuhiro Hayashi.
This presentation goes through several topics areas that are of specific interest in developing IoT Gateway solutions. IoT is a popular area of development that presents unique challenges like hardware and operating system selection, product life-cycle support and maintainability, software architectural solutions, connectivity, security, secure updates, and API availability. We discuss technologies and concepts like Hardware acceleration support, Linux kernel maintenance, Edge networking, LXC/Docker/KVM, Zigbee, 6loPAN, BLE, IoTivity, Allseen Alliance, SELinux and Trusted boot.
The aim of the presentation is to give an overview of the challenges in building an IoT Gateway and the Solutions available using Embedded Linux.
This presentation was delivered at LinuxCon Japan 2016 by Jim Gallagher
Trading derivatives on a decentralized system aims for high
availability (HA) and disaster recovery (DR). Both HA and DR can be
met by incorporating a blockchain and a container technology. The
Hyperledger is a blockchain framework aims for a cross-industry open
standard with the freely customizable plugins, smart contract, and the
data payload. Those features exposes us the easy ways to implement our
trading platform on a blockchain. The Docker was brought to handle
each specific Hyperledger chain internally. Also, hovering the whole
Hyperledger nodes with containers reduce our time in building
infrastructure, and much easier to be deployed on the production
environment. This presentation will show how we integrate the
Hyperledger and the Docker container for our derivatives trading
project, and the issues that we are focusing on. Additionally, the
talk partially includes the performance evaluation results under
different configurations.
This talk was delivered at LinuxCon Japan 2016 by Siriwat Kasamwattanarote, Thierry Gibralta, Vsevolod Yugov, Shibo Lin, Hideaki Takei, and Fernando Vazquez
Introducing Oracle Linux and Securing It With kspliceLF Events
Oracle Linux is expanding its share in the enterprise market. Not only as a RHEL compatible OS, it has variety of functions that will interest enterprise system admins. Ksplice is one of its attractive function, in this session we will show you how life is going to be easier patching security vulnerability without rebooting system using Ksplice.
This presentation was delivered at LinuxCon Japan 2016 by Fumiyasu Ishibashi
Containers: Don't Skeu Them Up, Use Microservices InsteadLF Events
The value of embracing microservices, containers, and continuous delivery is powerful only when brought together in logical, scalable, and portable ways. When used incorrectly it’s increasingly easy to make things much worse for you and your team, and do it at scale.
For example, while microservices can be used to effectively isolate functionality, increase the speed of delivery, and help scale your team it can also be a way to inefficiently duplicate functionality and create single points of failure.
I’ll share anti-patterns and corresponding best practices based on my experience building application infrastructure and platforms, as well as the applications which are deployed to them.
This Presentation is from Gordon Haff and William Henry at LinuxCon Japan 2016
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
- Practical Applications in FME Form: Delve into key user parameter types including choice, connections, and file URLs. Allow users to control how a workflow runs, making your workflows more reusable. Learn to import values and deliver the best user experience for your workflows while enhancing accuracy.
- Optimization Strategies in FME Flow: Explore the creation and strategic deployment of parameters in FME Flow, including the use of deployment and geometry parameters, to maximize workflow efficiency.
- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
Let's dive deeper into the world of ODC! Ricardo Alves (OutSystems) will join us to tell all about the new Data Fabric. After that, Sezen de Bruijn (OutSystems) will get into the details on how to best design a sturdy architecture within ODC.
