Linux

• The xCapture and xtop eBPF tools are now in beta, with a demo dataset
• CatVector Demo Website
• New Tool: xstack - Completely Passive eBPF Linux Stack Profiling Without Any Tracepoints
• Dimensional Analysis of System Performance with eBPF & xtop: Top for Wall-Clock Time
• Webinar: Testing High-Performance Vector Search With CatBench on Google AlloyDB Omni
• Catbench Vector Search App has Postgres Query Throughput and Latency Monitoring Now
• Using Postgres pg_test_fsync tool for testing low latency writes
• New Tool: lsds - List All Linux Block Devices and Settings in One Place
• Optimizing eBPF I/O latency accounting when running 37M IOPS on a 384-CPU server
• xCapture v3: Linux Performance Analysis with Modern eBPF and DuckDB
• When eBPF task->stack->pt_regs reads return garbage on the latest Linux kernels, blame Fred!
• TracepointArgs: List Any Linux Tracepoint with Their Arguments, Datatypes and Related Structs
• CatBench Vector Search Playground
• Embedding Vectors of the Same Image Rotated Over 360 Degrees
• Embedding Vectors vs. Vector Embeddings
• Video: Testing the Silk Platform in 2024 Interview (12 minutes)
• Testing the Silk Platform in 2024: Achieving 20 GiB/s I/O Throughput in a Single Cloud VM
• Tracking, not Tracing, Linux Thread Activity for Complete System Visibility (eBPF Summit)
• Python Supports Profiling with Perf - How Does It Work?
• Can a User Process Consume Kernel Mode CPU Without a Syscall?
• Next Big Thing: X-Ray Vision for Linux Systems with eBPF
• Syscallargs: List All Linux System Calls With Their Arguments
• RTX4090 converted into an eGPU
• MySQL Now Shows its Thread Names at OS Level for Better Troubleshooting
• Achieving 10 GB/s Scanning Rate in a Single Cloud VM
• Testing The Silk Platform - Hands-On Technical Analysis of High-Performance I/O in the Cloud
• Do Not Use '>' in Your Command Prompt (and How to Stay Safe in Shell)
• Is Your Linux Version Hiding Interrupt CPU Usage From You?
• Video: High Performance Block I/O on Linux
• Achieving 11M IOPS & 66 GiB/s IO on a Single ThreadRipper Workstation
• Measuring Java JVM thread activity in Linux with task state sampling
• High System Load with Low CPU Utilization on Linux?
• SchedLat: a Low Tech Script for Measuring Process CPU Scheduling Latency on Linux
• pSnapper: Linux Process Snapper Page and Videos
• Tutorial: Troubleshooting Linux SSH Login Delay - Why does logging in always take 10 seconds?
• RAM is the new disk – and how to measure its performance – Part 3 – CPU Instructions & Cycles
• RAM is the new disk – and how to measure its performance – Part 2 – Tools
• RAM is the new disk – and how to measure its performance – Part 1 – Introduction
• What the heck are the /dev/shm/JOXSHM_EXT_x files on Linux?
• Hard Drive Predictive Failures on Linux and Exadata
• SGA bigger than the amount of HugePages configured (Linux – 11.2.0.3)
• Peeking into Linux kernel-land using /proc filesystem for quick’n’dirty troubleshooting
• Troubleshooting high CPU usage with poor-man’s stack profiler – in a one-liner!
• Oracle Exadata Performance series – Part 1: Should I use Hugepages on Linux Database Nodes?