Brendan Gregg

iaprof. AI/GPU flame graph

hn-big-threads. Use flame graphs to read very big HN threads

yed-flame_graph. C++

PerfSpect. Open-source Linux performance suite for engineers—profiling and tuning workloads and system configurations.

processwatch. C

WSPerfLab. Project for testing web-service implementations.

aussieplusplus. Programming language from down under

ydotool. Generic command-line automation tool

fuite. A tool for finding memory leaks in web apps

hBPF. hBPF = eBPF in hardware

bmc-cache. In-kernel cache based on eBPF.

ExtendedAndroidTools. Extended Android Tools is a place to host and maintain a build environment and makefiles cross compiling Linux tools we all love for Android.

ebpf-for-windows. eBPF implementation that runs on top of Windows

crouton. Chromium OS Universal Chroot Environment (EOL)

jmh-jdk-microbenchmarks. https://openjdk.org/projects/code-tools/jmh-jdk-microbenchmarks

selectric-mode. ⌨ Make your Emacs sound like a proper typewriter.

bpftrace-tetris. Tetris in bpftrace

bpftoolkit. Shell

ggwaterfall. R package with functions for drawing density and frequency trail waterfall plots

libstapsdt. Create Systemtap's USDT probes at runtime

virtualagc. Virtual Apollo Guidance Computer (AGC) software

kdress. Transform vmlinuz into a fully debuggable vmlinux that can be used with /proc/kcore

kubectl-trace. Schedule bpftrace programs on your kubernetes cluster using the kubectl

vmtouch. Portable file system cache diagnostics and control

tiptop. Tiptop is a performance monitoring tool for Linux. It provides a dynamic real-time view of the tasks running in the system. tiptop is very similar to the top utility, but most of the information displayed comes from hardware counters.

bpftrace. High-level tracing language for Linux

node-linux-perf. C++

speedscope. 🔬 A fast, interactive web-based viewer for performance profiles.

Craft. A simple Minecraft clone written in C using modern OpenGL (shaders).

generic-ebpf. Generic eBPF runtime

BOLT. Binary Optimization and Layout Tool - A linux command-line utility used for optimizing performance of binaries

katran. A high performance layer 4 load balancer

slowrm. rm but slower

flamescope. FlameScope is a visualization tool for exploring different time ranges as Flame Graphs.

d3-heatmap2. A D3.js plugin that produces heatmaps.

pcp-bcc-pmda. PCP BCC PMDA

ebpf_exporter. A Prometheus exporter which uses eBPF to measure block IO request latency / size

async-profiler. Sampling CPU and HEAP profiler for Java featuring AsyncGetCallTrace + perf_events

gpuvis. GPU Trace Visualizer

grav. Performance visualisation tools

Linux_tracing_scripts. Scripts and tools for troubleshooting and performance analysis in Linux. This includes dynamic tracing scripts with SystemTap both for system calls and for userspace function tracing.

gdb-heap. Heap Analyzer for Python

kernelscope. A daemon and webapp for collecting kernel trace data and visualizing it.

uniprof. A stack tracer/profiler for Xen domains

gdbgui. Browser-based frontend to gdb (gnu debugger). Add breakpoints, view the stack, visualize data structures, and more in C, C++, Go, Rust, and Fortran. Run gdbgui from the terminal and a new tab will open in your browser.

uftrace. Function graph tracer for C/C++/Rust/Python

bpftrace. High-level tracing language for Linux eBPF - development moved to https://github.com/iovisor/bpftrace

linux-tracing-workshop. Examples and hands-on labs for Linux tracing tools workshops

linux-inject. Proof of concept use of linux-inject and proces patching

gooda. pmu event analysis package

cilium. eBPF-based Networking, Security, and Observability

memsql-perf-tools.

Apollo-11. Original Apollo 11 Guidance Computer (AGC) source code for the command and lunar modules.

toolkit. The DTrace Toolkit: A set of scripts for use with DTrace on various systems.

scripts. A collection of scripts that work with DTrace

cpustat. high frequency performance measurements for Linux. This project is deprecated and not maintained.

ply. Dynamic Tracing in Linux

ply. Light-weight Dynamic Tracer for Linux

DTrace-win32. DTrace for Windows OS

nicstat. Fork of https://sourceforge.net/projects/nicstat/ to fix bugs

llnode. An lldb plugin for Node.js and V8, which enables inspection of JavaScript states for insights into Node.js processes and their core dumps.

autofdo. AutoFDO

d3-flame-graph. A D3.js plugin that produces flame graphs from hierarchical data.

pcp. Performance Co-Pilot

bcc. BCC - Tools for BPF-based Linux IO analysis, networking, monitoring, and more

go-torch. Stochastic flame graph profiler for Go programs

lldb-v8. v8 utility scripts for lldb

spigo. Simulate Protocol Interactions in Go

node-stap. Tools for analyzing Node.js programs with SystemTap. This project is deprecated and not maintained.

vector. Vector is an on-host performance monitoring framework which exposes hand picked high resolution metrics to every engineer’s browser.

flamegraphdiff. flamegraphdiff

freebsd-src. The FreeBSD src tree publish-only repository. Experimenting with 'simple' pull requests....

cool-retro-term. A good looking terminal emulator which mimics the old cathode display...

flamegraph. Generates flamegraphs with Node.js or in the browser.

pmu-tools. Intel PMU profiling tools

pcstat. Page Cache stat: get page cache stats for files on Linux

mobile-synth-test. playing with web audio api and touch events for mobile

perf-map-agent. A java agent to generate method mappings to use with the linux `perf` tool

hprof2flamegraph. Flame Graph visualization for Java (HPROF, Honest-profiler)

ktap. A lightweight script-based dynamic tracing tool for Linux

Chaosreader. An any-snarf program that processes application protocols (HTTP/FTP/...) from tcpdump or snoop files and stores session and file data

PerfModels. Performance Scalability Models

Dump2PNG. Visualize file data as a PNG

linux. dtrace for linux - kernel driver and userland tools

FlameGraph. Stack trace visualizer

DTraceToolkit. A collection of useful, tested and documented DTrace scripts

GuessingGame. Guessing game written in many programming languages

Test. testing github