1. The table lists Laplace and Z-transforms of common functions and their relationships.
2. Important properties of the Z-transform include how it is defined as the sum of a function multiplied by powers of z from 0 to infinity, and theorems regarding shifting, differentiation, and other manipulations of the transform.
3. The document provides definitions and key properties of the Laplace and Z-transforms to understand how they relate continuous-time and discrete-time signals.
1. The document defines the Laplace transform, Z-transform, and their relationship to continuous-time and discrete-time signals.
2. Tables are provided that list common transforms and their corresponding functions in the s-domain, z-domain, and time/discrete-time domains.
3. Important properties and theorems of the Z-transform are outlined, including linearity, shifting, derivatives, and the inverse z-transform.
1) The document discusses licensing terms and percentages of works that are openly licensed under certain terms like CC-BY, CC-BY-NC, etc.
2) It provides information on dates of works, types of digital objects, allowed usage and modifications, and percentages of works that must be openly licensed.
3) The document also references other related works and their own open licensing terms.
This document contains information about an LCD display presentation created by the Creative Buzz group. It includes sections on the introduction to LCD displays, the history of LCDs which were invented in 1968, how LCDs work using liquid crystals, the Bresenham line algorithm for drawing lines in computer graphics, advantages and disadvantages of LCDs, and applications of LCDs such as in devices like clocks, calculators, televisions and computer monitors.
Pajek chapter2 Attributes and RelationsChengjun Wang
The document provides instructions for network analysis and visualization tasks in UCINET. It describes how to:
1. Partition a network to draw dining table partners and manually adjust vertex classes.
2. Extract a subnetwork from a larger network using two partition files that assign vertices to clusters.
3. Analyze cluster properties for a partition file with 3 clusters including frequency distributions and representative vertices.
4. Shrink a network by removing edges below a selected cluster value from a second partition file.
5. Create a vector partition from a continuous vector by truncating values into categories.
The document contains solutions to several equations:
1) It solves equations like 2x - 6 = -x + 15 for x, finding x = 7 for one.
2) It expresses fractional equations like 3x/2 - (x - 10)/8 = (x + 1)/4 in terms of x and solves for x = -8/9.
3) It solves equations involving multiple variables like 6m + 3(10 - 4m) = 25 + 8m for m and finds m = 5/14.
1. The document discusses guidelines and best practices for using copyrighted materials from several organizations.
2. It provides summaries of statements on fair use from the Center for Media and Social Impact and the Visual Resources Association related to using images and video for teaching.
3. The statements address how much of a work can be used, formats for sharing excerpts, and attributing sources.
Precomputed Voxelized-Shadows for Large-scale Scene and Many lightsSeongdae Kim
The document describes the process of building a voxel directional-occlusion graph (voxel DAG) from a shadow map captured on the GPU. It involves capturing the shadow map on the GPU and transmitting it to system memory, then computing minimum and maximum depth values at each mip level. A voxel DAG is constructed from the shadow data to represent lit and shadowed regions of the scene. Pseudocode is provided for building the root and subnodes of the voxel DAG in C#.
1. The table lists Laplace and Z-transforms of common functions and their relationships.
2. Important properties of the Z-transform include how it is defined as the sum of a function multiplied by powers of z from 0 to infinity, and theorems regarding shifting, differentiation, and other manipulations of the transform.
3. The document provides definitions and key properties of the Laplace and Z-transforms to understand how they relate continuous-time and discrete-time signals.
1. The document defines the Laplace transform, Z-transform, and their relationship to continuous-time and discrete-time signals.
2. Tables are provided that list common transforms and their corresponding functions in the s-domain, z-domain, and time/discrete-time domains.
3. Important properties and theorems of the Z-transform are outlined, including linearity, shifting, derivatives, and the inverse z-transform.
1) The document discusses licensing terms and percentages of works that are openly licensed under certain terms like CC-BY, CC-BY-NC, etc.
2) It provides information on dates of works, types of digital objects, allowed usage and modifications, and percentages of works that must be openly licensed.
3) The document also references other related works and their own open licensing terms.
This document contains information about an LCD display presentation created by the Creative Buzz group. It includes sections on the introduction to LCD displays, the history of LCDs which were invented in 1968, how LCDs work using liquid crystals, the Bresenham line algorithm for drawing lines in computer graphics, advantages and disadvantages of LCDs, and applications of LCDs such as in devices like clocks, calculators, televisions and computer monitors.
Pajek chapter2 Attributes and RelationsChengjun Wang
The document provides instructions for network analysis and visualization tasks in UCINET. It describes how to:
1. Partition a network to draw dining table partners and manually adjust vertex classes.
2. Extract a subnetwork from a larger network using two partition files that assign vertices to clusters.
3. Analyze cluster properties for a partition file with 3 clusters including frequency distributions and representative vertices.
4. Shrink a network by removing edges below a selected cluster value from a second partition file.
5. Create a vector partition from a continuous vector by truncating values into categories.
The document contains solutions to several equations:
1) It solves equations like 2x - 6 = -x + 15 for x, finding x = 7 for one.
2) It expresses fractional equations like 3x/2 - (x - 10)/8 = (x + 1)/4 in terms of x and solves for x = -8/9.
3) It solves equations involving multiple variables like 6m + 3(10 - 4m) = 25 + 8m for m and finds m = 5/14.
1. The document discusses guidelines and best practices for using copyrighted materials from several organizations.
2. It provides summaries of statements on fair use from the Center for Media and Social Impact and the Visual Resources Association related to using images and video for teaching.
3. The statements address how much of a work can be used, formats for sharing excerpts, and attributing sources.
Precomputed Voxelized-Shadows for Large-scale Scene and Many lightsSeongdae Kim
The document describes the process of building a voxel directional-occlusion graph (voxel DAG) from a shadow map captured on the GPU. It involves capturing the shadow map on the GPU and transmitting it to system memory, then computing minimum and maximum depth values at each mip level. A voxel DAG is constructed from the shadow data to represent lit and shadowed regions of the scene. Pseudocode is provided for building the root and subnodes of the voxel DAG in C#.
1. The document discusses using graphics and data visualization to improve understanding of database performance issues and SQL tuning. It provides examples of how visualizations can clearly show relationships in complex SQL queries and data that are difficult to understand from text or code alone.
2. Key steps in visual SQL tuning are laid out, including drawing tables as nodes, joins as connection lines, and filters as markings on tables. This helps identify optimization opportunities like missing indexes or stale statistics.
3. The document emphasizes that a lack of clarity in visualizing complex data and queries can have devastating consequences, while graphics enable easy understanding and effective problem-solving.
This document provides technical documentation for the Twin Line Controller 51x (TLC51x) positioning controller for stepper motors. It includes details on the product, safety guidelines, technical specifications, installation, commissioning, operating modes, functions, diagnosis and service. The TLC51x is a modular positioning controller that can be configured for different applications and interfaces. It provides functions such as manual movement, speed control, point-to-point positioning and electronic gearing.
Descriptive analytics in r programming languageAshwini Mathur
The document discusses experiments involving R programming code and analysis of built-in data sets. It includes questions about manipulating gender data, evaluating mathematical expressions, creating a data frame, generating Fibonacci sequences with different starting values, analyzing solar radiation data through plotting and statistics, and using the built-in mtcars data set to explore plotting options in ggplot2. Code solutions are provided for each question to demonstrate the requested data manipulations and analyses.
This document provides a block diagram for an LG2/4 DIS motherboard from Quant Computer Inc. It includes labels and component information for the Sandy Bridge processor, Platform Controller Hub, memory, graphics, I/O ports, and power delivery components. Placement and routing guidelines are provided for key signals with recommended trace widths, spacings and lengths.
Kernel Recipes 2017 - Performance analysis Superpowers with Linux BPF - Brend...Anne Nicolas
The in-kernel Berkeley Packet Filter (BPF) has been enhanced in recent kernels to do much more than just filtering packets. It can now run user-defined programs on events, such as on tracepoints, kprobes, uprobes, and perf_events, allowing advanced performance analysis tools to be created. These can be used in production as the BPF virtual machine is sandboxed and will reject unsafe code, and are already in use at Netflix.
Beginning with the bpf() syscall in 3.18, enhancements have been added in many kernel versions since, with major features for BPF analysis landing in Linux 4.1, 4.4, 4.7, and 4.9. Specific capabilities these provide include custom in-kernel summaries of metrics, custom latency measurements, and frequency counting kernel and user stack traces on events. One interesting case involves saving stack traces on wake up events, and associating them with the blocked stack trace: so that we can see the blocking stack trace and the waker together, merged in kernel by a BPF program (that particular example is in the kernel as samples/bpf/offwaketime).
This talk will discuss the new BPF capabilities for performance analysis and debugging, and demonstrate the new open source tools that have been developed to use it, many of which are in the Linux Foundation iovisor bcc (BPF Compiler Collection) project. These include tools to analyze the CPU scheduler, TCP performance, file system performance, block I/O, and more.
Brendan Gregg, Netflix
Kernel Recipes 2017: Performance Analysis with BPFBrendan Gregg
Talk by Brendan Gregg at Kernel Recipes 2017 (Paris): "The in-kernel Berkeley Packet Filter (BPF) has been enhanced in recent kernels to do much more than just filtering packets. It can now run user-defined programs on events, such as on tracepoints, kprobes, uprobes, and perf_events, allowing advanced performance analysis tools to be created. These can be used in production as the BPF virtual machine is sandboxed and will reject unsafe code, and are already in use at Netflix.
Beginning with the bpf() syscall in 3.18, enhancements have been added in many kernel versions since, with major features for BPF analysis landing in Linux 4.1, 4.4, 4.7, and 4.9. Specific capabilities these provide include custom in-kernel summaries of metrics, custom latency measurements, and frequency counting kernel and user stack traces on events. One interesting case involves saving stack traces on wake up events, and associating them with the blocked stack trace: so that we can see the blocking stack trace and the waker together, merged in kernel by a BPF program (that particular example is in the kernel as samples/bpf/offwaketime).
This talk will discuss the new BPF capabilities for performance analysis and debugging, and demonstrate the new open source tools that have been developed to use it, many of which are in the Linux Foundation iovisor bcc (BPF Compiler Collection) project. These include tools to analyze the CPU scheduler, TCP performance, file system performance, block I/O, and more."
The document discusses a demonstration of the SmartZone 5.1 user interface for network monitoring and management. It provides a baseline network diagram of the equipment and configurations used in two demo pods. It also presents screenshots and descriptions of some key areas of the SmartZone UI, including the switches, backup/restore, switch port, and traffic monitoring tabs. Users are instructed to reserve the demo pods for testing and contact support for any additional questions.
Around the world with extensions | PostgreSQL Conference Europe 2018 | Craig ...Citus Data
Postgres continues to get more and more feature rich. But equally as impressive is the network of extensions that are growing around Postgres. With the rich extension APIs you can now add advanced functionality to Postgres without having to fork the codebase or wait for the main PostgreSQL release cycle. In this talk we'll cover some of the basics of what an extension is and then take a tour through a variety of Postgres extensions including:
pg_stat_statments
PostGIS
HyperLogLog and TopN
Timescale
pg_partman
Citus
Foreign data wrappers which are their own whole class
The document discusses diagnosing and mitigating MySQL performance issues. It describes using various operating system monitoring tools like vmstat, iostat, and top to analyze CPU, memory, disk, and network utilization. It also discusses using MySQL-specific tools like the MySQL command line, mysqladmin, mysqlbinlog, and external tools to diagnose issues like high load, I/O wait, or slow queries by examining metrics like queries, connections, storage engine statistics, and InnoDB logs and data written. The agenda covers identifying system and MySQL-specific bottlenecks by verifying OS metrics and running diagnostics on the database, storage engines, configuration, and queries.
Most important "trick" of performance instrumentationCary Millsap
This is the material from my 10-minute TED-style talk 2014-09-29 at OakTable World held in conjunction with Oracle OpenWorld 2014 in San Francisco. It explains the importance of assigning a unique id to the Oracle Database code path associated with each performance experience that users can have with your system
Oracle Architecture document discusses:
1. The cost of an Oracle Enterprise Edition license is $47,500 per processor.
2. It provides an overview of key Oracle components like the instance, database, listener and cost based optimizer.
3. It demonstrates how to start an Oracle instance, check active processes, mount and open a database, and query it locally and remotely after starting the listener.
The document is a maintenance and service guide for the HP Compaq nc8000 Business Notebook and nw8000 Mobile Workstation. It provides information on identifying notebook features and components, troubleshooting problems, and performing disassembly procedures. The guide contains sections on product description, troubleshooting, illustrated parts catalog, removal and replacement procedures, specifications, and more.
This document is a maintenance and service guide for the HP Compaq nc8000 Business Notebook and nw8000 Mobile Workstation. It provides information on identifying system components, troubleshooting issues, disassembly procedures, and part numbers for replacement parts. The guide includes specifications, connector pinouts, power requirements, and screw listings to aid in servicing the notebooks.
IBM BC2015 - Cisco - Cloud is Now - VersaStackIBM Sverige
Denna presentation hölls på IBM Business Connect (http://www.ibm.com/se/businessconnect) i oktober 2015 av Greger Jerlehagen (CTO, Cisco)
Beskrivning:
Ett datacenter är en komplex miljö med många olika komponenter som måste samexistera. Ju mer man kan integrera de olika delarna desto färre manageringspunkter och möjliga felkällor får man i sitt datacenter. Cisco Unified Computing System (UCS) revolutionerade datacentren när det introducerades för ca 6 år sedan. Nu har man byggt vidare på detta tillsammans med IBM. VersaStack bygger på denna plattform genom integrationen med IBMs Storwize.
re:Invent 2019 BPF Performance Analysis at NetflixBrendan Gregg
This document provides an overview of Brendan Gregg's presentation on BPF performance analysis at Netflix. It discusses:
- Why BPF is changing the Linux OS model to become more event-based and microkernel-like.
- The internals of BPF including its origins, instruction set, execution model, and how it is integrated into the Linux kernel.
- How BPF enables a new class of custom, efficient, and safe performance analysis tools for analyzing various Linux subsystems like CPUs, memory, disks, networking, applications, and the kernel.
- Examples of specific BPF-based performance analysis tools developed by Netflix, AWS, and others for analyzing tasks, scheduling, page faults
OSSNA 2017 Performance Analysis Superpowers with Linux BPFBrendan Gregg
Talk by Brendan Gregg for OSSNA 2017. "Advanced performance observability and debugging have arrived built into the Linux 4.x series, thanks to enhancements to Berkeley Packet Filter (BPF, or eBPF) and the repurposing of its sandboxed virtual machine to provide programmatic capabilities to system tracing. Netflix has been investigating its use for new observability tools, monitoring, security uses, and more. This talk will be a dive deep on these new tracing, observability, and debugging capabilities, which sooner or later will be available to everyone who uses Linux. Whether you’re doing analysis over an ssh session, or via a monitoring GUI, BPF can be used to provide an efficient, custom, and deep level of detail into system and application performance.
This talk will also demonstrate the new open source tools that have been developed, which make use of kernel- and user-level dynamic tracing (kprobes and uprobes), and kernel- and user-level static tracing (tracepoints). These tools provide new insights for file system and storage performance, CPU scheduler performance, TCP performance, and a whole lot more. This is a major turning point for Linux systems engineering, as custom advanced performance instrumentation can be used safely in production environments, powering a new generation of tools and visualizations."
The document describes the initialization phase of an IMPORT job in Sqoop 2. It shows that the SqoopInputFormat gets splits from the database, which are then passed to the Partitioner to determine how to partition the data among mapper tasks. This establishes the basic workflow of reading data from the source and partitioning it for import into HDFS.
This document describes the message processing and dispatching procedures for Simple Network Management Protocol (SNMP) messages. It defines how the dispatcher routes SNMP messages to the appropriate message processing model based on message version, and how it routes PDUs to applications based on message contents. It also describes the SNMPv3 message processing model. The key responsibilities of the dispatcher are to send and receive SNMP messages, dispatch PDUs to applications, and coordinate with message processing models.
How to view a project, as a junior engineer - Networkshop44Jisc
The document describes Aaron Street's work designing the network for a new high containment laboratory building project. It discusses:
1) Aaron's initial tasks which included designing, sourcing, and installing the network infrastructure for the new laboratory building.
2) Aaron's process of determining requirements which included understanding users' needs, setting out different levels of requirements (minimal, expected, maximum), and getting input from support companies.
3) Some of the iterations of network solutions Aaron considered, including designs using Cisco Catalyst switches and considering factors like bandwidth, resilience and flexibility.
1. The document discusses using graphics and data visualization to improve understanding of database performance issues and SQL tuning. It provides examples of how visualizations can clearly show relationships in complex SQL queries and data that are difficult to understand from text or code alone.
2. Key steps in visual SQL tuning are laid out, including drawing tables as nodes, joins as connection lines, and filters as markings on tables. This helps identify optimization opportunities like missing indexes or stale statistics.
3. The document emphasizes that a lack of clarity in visualizing complex data and queries can have devastating consequences, while graphics enable easy understanding and effective problem-solving.
This document provides technical documentation for the Twin Line Controller 51x (TLC51x) positioning controller for stepper motors. It includes details on the product, safety guidelines, technical specifications, installation, commissioning, operating modes, functions, diagnosis and service. The TLC51x is a modular positioning controller that can be configured for different applications and interfaces. It provides functions such as manual movement, speed control, point-to-point positioning and electronic gearing.
Descriptive analytics in r programming languageAshwini Mathur
The document discusses experiments involving R programming code and analysis of built-in data sets. It includes questions about manipulating gender data, evaluating mathematical expressions, creating a data frame, generating Fibonacci sequences with different starting values, analyzing solar radiation data through plotting and statistics, and using the built-in mtcars data set to explore plotting options in ggplot2. Code solutions are provided for each question to demonstrate the requested data manipulations and analyses.
This document provides a block diagram for an LG2/4 DIS motherboard from Quant Computer Inc. It includes labels and component information for the Sandy Bridge processor, Platform Controller Hub, memory, graphics, I/O ports, and power delivery components. Placement and routing guidelines are provided for key signals with recommended trace widths, spacings and lengths.
Kernel Recipes 2017 - Performance analysis Superpowers with Linux BPF - Brend...Anne Nicolas
The in-kernel Berkeley Packet Filter (BPF) has been enhanced in recent kernels to do much more than just filtering packets. It can now run user-defined programs on events, such as on tracepoints, kprobes, uprobes, and perf_events, allowing advanced performance analysis tools to be created. These can be used in production as the BPF virtual machine is sandboxed and will reject unsafe code, and are already in use at Netflix.
Beginning with the bpf() syscall in 3.18, enhancements have been added in many kernel versions since, with major features for BPF analysis landing in Linux 4.1, 4.4, 4.7, and 4.9. Specific capabilities these provide include custom in-kernel summaries of metrics, custom latency measurements, and frequency counting kernel and user stack traces on events. One interesting case involves saving stack traces on wake up events, and associating them with the blocked stack trace: so that we can see the blocking stack trace and the waker together, merged in kernel by a BPF program (that particular example is in the kernel as samples/bpf/offwaketime).
This talk will discuss the new BPF capabilities for performance analysis and debugging, and demonstrate the new open source tools that have been developed to use it, many of which are in the Linux Foundation iovisor bcc (BPF Compiler Collection) project. These include tools to analyze the CPU scheduler, TCP performance, file system performance, block I/O, and more.
Brendan Gregg, Netflix
Kernel Recipes 2017: Performance Analysis with BPFBrendan Gregg
Talk by Brendan Gregg at Kernel Recipes 2017 (Paris): "The in-kernel Berkeley Packet Filter (BPF) has been enhanced in recent kernels to do much more than just filtering packets. It can now run user-defined programs on events, such as on tracepoints, kprobes, uprobes, and perf_events, allowing advanced performance analysis tools to be created. These can be used in production as the BPF virtual machine is sandboxed and will reject unsafe code, and are already in use at Netflix.
Beginning with the bpf() syscall in 3.18, enhancements have been added in many kernel versions since, with major features for BPF analysis landing in Linux 4.1, 4.4, 4.7, and 4.9. Specific capabilities these provide include custom in-kernel summaries of metrics, custom latency measurements, and frequency counting kernel and user stack traces on events. One interesting case involves saving stack traces on wake up events, and associating them with the blocked stack trace: so that we can see the blocking stack trace and the waker together, merged in kernel by a BPF program (that particular example is in the kernel as samples/bpf/offwaketime).
This talk will discuss the new BPF capabilities for performance analysis and debugging, and demonstrate the new open source tools that have been developed to use it, many of which are in the Linux Foundation iovisor bcc (BPF Compiler Collection) project. These include tools to analyze the CPU scheduler, TCP performance, file system performance, block I/O, and more."
The document discusses a demonstration of the SmartZone 5.1 user interface for network monitoring and management. It provides a baseline network diagram of the equipment and configurations used in two demo pods. It also presents screenshots and descriptions of some key areas of the SmartZone UI, including the switches, backup/restore, switch port, and traffic monitoring tabs. Users are instructed to reserve the demo pods for testing and contact support for any additional questions.
Around the world with extensions | PostgreSQL Conference Europe 2018 | Craig ...Citus Data
Postgres continues to get more and more feature rich. But equally as impressive is the network of extensions that are growing around Postgres. With the rich extension APIs you can now add advanced functionality to Postgres without having to fork the codebase or wait for the main PostgreSQL release cycle. In this talk we'll cover some of the basics of what an extension is and then take a tour through a variety of Postgres extensions including:
pg_stat_statments
PostGIS
HyperLogLog and TopN
Timescale
pg_partman
Citus
Foreign data wrappers which are their own whole class
The document discusses diagnosing and mitigating MySQL performance issues. It describes using various operating system monitoring tools like vmstat, iostat, and top to analyze CPU, memory, disk, and network utilization. It also discusses using MySQL-specific tools like the MySQL command line, mysqladmin, mysqlbinlog, and external tools to diagnose issues like high load, I/O wait, or slow queries by examining metrics like queries, connections, storage engine statistics, and InnoDB logs and data written. The agenda covers identifying system and MySQL-specific bottlenecks by verifying OS metrics and running diagnostics on the database, storage engines, configuration, and queries.
Most important "trick" of performance instrumentationCary Millsap
This is the material from my 10-minute TED-style talk 2014-09-29 at OakTable World held in conjunction with Oracle OpenWorld 2014 in San Francisco. It explains the importance of assigning a unique id to the Oracle Database code path associated with each performance experience that users can have with your system
Oracle Architecture document discusses:
1. The cost of an Oracle Enterprise Edition license is $47,500 per processor.
2. It provides an overview of key Oracle components like the instance, database, listener and cost based optimizer.
3. It demonstrates how to start an Oracle instance, check active processes, mount and open a database, and query it locally and remotely after starting the listener.
The document is a maintenance and service guide for the HP Compaq nc8000 Business Notebook and nw8000 Mobile Workstation. It provides information on identifying notebook features and components, troubleshooting problems, and performing disassembly procedures. The guide contains sections on product description, troubleshooting, illustrated parts catalog, removal and replacement procedures, specifications, and more.
This document is a maintenance and service guide for the HP Compaq nc8000 Business Notebook and nw8000 Mobile Workstation. It provides information on identifying system components, troubleshooting issues, disassembly procedures, and part numbers for replacement parts. The guide includes specifications, connector pinouts, power requirements, and screw listings to aid in servicing the notebooks.
IBM BC2015 - Cisco - Cloud is Now - VersaStackIBM Sverige
Denna presentation hölls på IBM Business Connect (http://www.ibm.com/se/businessconnect) i oktober 2015 av Greger Jerlehagen (CTO, Cisco)
Beskrivning:
Ett datacenter är en komplex miljö med många olika komponenter som måste samexistera. Ju mer man kan integrera de olika delarna desto färre manageringspunkter och möjliga felkällor får man i sitt datacenter. Cisco Unified Computing System (UCS) revolutionerade datacentren när det introducerades för ca 6 år sedan. Nu har man byggt vidare på detta tillsammans med IBM. VersaStack bygger på denna plattform genom integrationen med IBMs Storwize.
re:Invent 2019 BPF Performance Analysis at NetflixBrendan Gregg
This document provides an overview of Brendan Gregg's presentation on BPF performance analysis at Netflix. It discusses:
- Why BPF is changing the Linux OS model to become more event-based and microkernel-like.
- The internals of BPF including its origins, instruction set, execution model, and how it is integrated into the Linux kernel.
- How BPF enables a new class of custom, efficient, and safe performance analysis tools for analyzing various Linux subsystems like CPUs, memory, disks, networking, applications, and the kernel.
- Examples of specific BPF-based performance analysis tools developed by Netflix, AWS, and others for analyzing tasks, scheduling, page faults
OSSNA 2017 Performance Analysis Superpowers with Linux BPFBrendan Gregg
Talk by Brendan Gregg for OSSNA 2017. "Advanced performance observability and debugging have arrived built into the Linux 4.x series, thanks to enhancements to Berkeley Packet Filter (BPF, or eBPF) and the repurposing of its sandboxed virtual machine to provide programmatic capabilities to system tracing. Netflix has been investigating its use for new observability tools, monitoring, security uses, and more. This talk will be a dive deep on these new tracing, observability, and debugging capabilities, which sooner or later will be available to everyone who uses Linux. Whether you’re doing analysis over an ssh session, or via a monitoring GUI, BPF can be used to provide an efficient, custom, and deep level of detail into system and application performance.
This talk will also demonstrate the new open source tools that have been developed, which make use of kernel- and user-level dynamic tracing (kprobes and uprobes), and kernel- and user-level static tracing (tracepoints). These tools provide new insights for file system and storage performance, CPU scheduler performance, TCP performance, and a whole lot more. This is a major turning point for Linux systems engineering, as custom advanced performance instrumentation can be used safely in production environments, powering a new generation of tools and visualizations."
The document describes the initialization phase of an IMPORT job in Sqoop 2. It shows that the SqoopInputFormat gets splits from the database, which are then passed to the Partitioner to determine how to partition the data among mapper tasks. This establishes the basic workflow of reading data from the source and partitioning it for import into HDFS.
This document describes the message processing and dispatching procedures for Simple Network Management Protocol (SNMP) messages. It defines how the dispatcher routes SNMP messages to the appropriate message processing model based on message version, and how it routes PDUs to applications based on message contents. It also describes the SNMPv3 message processing model. The key responsibilities of the dispatcher are to send and receive SNMP messages, dispatch PDUs to applications, and coordinate with message processing models.
How to view a project, as a junior engineer - Networkshop44Jisc
The document describes Aaron Street's work designing the network for a new high containment laboratory building project. It discusses:
1) Aaron's initial tasks which included designing, sourcing, and installing the network infrastructure for the new laboratory building.
2) Aaron's process of determining requirements which included understanding users' needs, setting out different levels of requirements (minimal, expected, maximum), and getting input from support companies.
3) Some of the iterations of network solutions Aaron considered, including designs using Cisco Catalyst switches and considering factors like bandwidth, resilience and flexibility.
The Microsoft 365 Migration Tutorial For Beginner.pptxoperationspcvita
This presentation will help you understand the power of Microsoft 365. However, we have mentioned every productivity app included in Office 365. Additionally, we have suggested the migration situation related to Office 365 and how we can help you.
You can also read: https://www.systoolsgroup.com/updates/office-365-tenant-to-tenant-migration-step-by-step-complete-guide/
What is an RPA CoE? Session 1 – CoE VisionDianaGray10
In the first session, we will review the organization's vision and how this has an impact on the COE Structure.
Topics covered:
• The role of a steering committee
• How do the organization’s priorities determine CoE Structure?
Speaker:
Chris Bolin, Senior Intelligent Automation Architect Anika Systems
AI in the Workplace Reskilling, Upskilling, and Future Work.pptxSunil Jagani
Discover how AI is transforming the workplace and learn strategies for reskilling and upskilling employees to stay ahead. This comprehensive guide covers the impact of AI on jobs, essential skills for the future, and successful case studies from industry leaders. Embrace AI-driven changes, foster continuous learning, and build a future-ready workforce.
Read More - https://bit.ly/3VKly70
"Frontline Battles with DDoS: Best practices and Lessons Learned", Igor IvaniukFwdays
At this talk we will discuss DDoS protection tools and best practices, discuss network architectures and what AWS has to offer. Also, we will look into one of the largest DDoS attacks on Ukrainian infrastructure that happened in February 2022. We'll see, what techniques helped to keep the web resources available for Ukrainians and how AWS improved DDoS protection for all customers based on Ukraine experience
[OReilly Superstream] Occupy the Space: A grassroots guide to engineering (an...Jason Yip
The typical problem in product engineering is not bad strategy, so much as “no strategy”. This leads to confusion, lack of motivation, and incoherent action. The next time you look for a strategy and find an empty space, instead of waiting for it to be filled, I will show you how to fill it in yourself. If you’re wrong, it forces a correction. If you’re right, it helps create focus. I’ll share how I’ve approached this in the past, both what works and lessons for what didn’t work so well.
"Choosing proper type of scaling", Olena SyrotaFwdays
Imagine an IoT processing system that is already quite mature and production-ready and for which client coverage is growing and scaling and performance aspects are life and death questions. The system has Redis, MongoDB, and stream processing based on ksqldb. In this talk, firstly, we will analyze scaling approaches and then select the proper ones for our system.
AppSec PNW: Android and iOS Application Security with MobSFAjin Abraham
Mobile Security Framework - MobSF is a free and open source automated mobile application security testing environment designed to help security engineers, researchers, developers, and penetration testers to identify security vulnerabilities, malicious behaviours and privacy concerns in mobile applications using static and dynamic analysis. It supports all the popular mobile application binaries and source code formats built for Android and iOS devices. In addition to automated security assessment, it also offers an interactive testing environment to build and execute scenario based test/fuzz cases against the application.
This talk covers:
Using MobSF for static analysis of mobile applications.
Interactive dynamic security assessment of Android and iOS applications.
Solving Mobile app CTF challenges.
Reverse engineering and runtime analysis of Mobile malware.
How to shift left and integrate MobSF/mobsfscan SAST and DAST in your build pipeline.
In the realm of cybersecurity, offensive security practices act as a critical shield. By simulating real-world attacks in a controlled environment, these techniques expose vulnerabilities before malicious actors can exploit them. This proactive approach allows manufacturers to identify and fix weaknesses, significantly enhancing system security.
This presentation delves into the development of a system designed to mimic Galileo's Open Service signal using software-defined radio (SDR) technology. We'll begin with a foundational overview of both Global Navigation Satellite Systems (GNSS) and the intricacies of digital signal processing.
The presentation culminates in a live demonstration. We'll showcase the manipulation of Galileo's Open Service pilot signal, simulating an attack on various software and hardware systems. This practical demonstration serves to highlight the potential consequences of unaddressed vulnerabilities, emphasizing the importance of offensive security practices in safeguarding critical infrastructure.
inQuba Webinar Mastering Customer Journey Management with Dr Graham HillLizaNolte
HERE IS YOUR WEBINAR CONTENT! 'Mastering Customer Journey Management with Dr. Graham Hill'. We hope you find the webinar recording both insightful and enjoyable.
In this webinar, we explored essential aspects of Customer Journey Management and personalization. Here’s a summary of the key insights and topics discussed:
Key Takeaways:
Understanding the Customer Journey: Dr. Hill emphasized the importance of mapping and understanding the complete customer journey to identify touchpoints and opportunities for improvement.
Personalization Strategies: We discussed how to leverage data and insights to create personalized experiences that resonate with customers.
Technology Integration: Insights were shared on how inQuba’s advanced technology can streamline customer interactions and drive operational efficiency.
Introducing BoxLang : A new JVM language for productivity and modularity!Ortus Solutions, Corp
Just like life, our code must adapt to the ever changing world we live in. From one day coding for the web, to the next for our tablets or APIs or for running serverless applications. Multi-runtime development is the future of coding, the future is to be dynamic. Let us introduce you to BoxLang.
Dynamic. Modular. Productive.
BoxLang redefines development with its dynamic nature, empowering developers to craft expressive and functional code effortlessly. Its modular architecture prioritizes flexibility, allowing for seamless integration into existing ecosystems.
Interoperability at its Core
With 100% interoperability with Java, BoxLang seamlessly bridges the gap between traditional and modern development paradigms, unlocking new possibilities for innovation and collaboration.
Multi-Runtime
From the tiny 2m operating system binary to running on our pure Java web server, CommandBox, Jakarta EE, AWS Lambda, Microsoft Functions, Web Assembly, Android and more. BoxLang has been designed to enhance and adapt according to it's runnable runtime.
The Fusion of Modernity and Tradition
Experience the fusion of modern features inspired by CFML, Node, Ruby, Kotlin, Java, and Clojure, combined with the familiarity of Java bytecode compilation, making BoxLang a language of choice for forward-thinking developers.
Empowering Transition with Transpiler Support
Transitioning from CFML to BoxLang is seamless with our JIT transpiler, facilitating smooth migration and preserving existing code investments.
Unlocking Creativity with IDE Tools
Unleash your creativity with powerful IDE tools tailored for BoxLang, providing an intuitive development experience and streamlining your workflow. Join us as we embark on a journey to redefine JVM development. Welcome to the era of BoxLang.
Discover the Unseen: Tailored Recommendation of Unwatched ContentScyllaDB
The session shares how JioCinema approaches ""watch discounting."" This capability ensures that if a user watched a certain amount of a show/movie, the platform no longer recommends that particular content to the user. Flawless operation of this feature promotes the discover of new content, improving the overall user experience.
JioCinema is an Indian over-the-top media streaming service owned by Viacom18.
From Natural Language to Structured Solr Queries using LLMsSease
This talk draws on experimentation to enable AI applications with Solr. One important use case is to use AI for better accessibility and discoverability of the data: while User eXperience techniques, lexical search improvements, and data harmonization can take organizations to a good level of accessibility, a structural (or “cognitive” gap) remains between the data user needs and the data producer constraints.
That is where AI – and most importantly, Natural Language Processing and Large Language Model techniques – could make a difference. This natural language, conversational engine could facilitate access and usage of the data leveraging the semantics of any data source.
The objective of the presentation is to propose a technical approach and a way forward to achieve this goal.
The key concept is to enable users to express their search queries in natural language, which the LLM then enriches, interprets, and translates into structured queries based on the Solr index’s metadata.
This approach leverages the LLM’s ability to understand the nuances of natural language and the structure of documents within Apache Solr.
The LLM acts as an intermediary agent, offering a transparent experience to users automatically and potentially uncovering relevant documents that conventional search methods might overlook. The presentation will include the results of this experimental work, lessons learned, best practices, and the scope of future work that should improve the approach and make it production-ready.