perf-tools
A collection of performance analysis tools for Linux using ftrace and perf_events to trace system activity with minimal dependencies.
What is perf-tools?
perf-tools is a collection of command-line performance analysis scripts for Linux systems. It uses the kernel's built-in ftrace and perf_events subsystems to provide detailed observability into disk I/O, system calls, kernel functions, and network activity. The tools help developers and system administrators diagnose performance bottlenecks and anomalous behavior without requiring complex instrumentation or debug symbols.
Linux system administrators, performance engineers, and developers who need low-level observability into kernel and system behavior for debugging and optimization.
It offers a lightweight, dependency-minimal alternative to heavier profiling suites, providing immediate utility on production systems where installing debuginfo or specialized packages isn't feasible. The tools are designed by Brendan Gregg, a renowned performance expert, ensuring practical and battle-tested approaches.
Overview
Performance analysis tools based on Linux perf_events (aka perf) and ftrace
Use Cases
Best For
- Diagnosing slow disk I/O latency and identifying problematic processes
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