perf-prof

Run `npx skills add duanery/perf-prof --all -g -y` in your terminal to install this skill globally.

The skill uses the profile profiler to sample CPU usage at high frequency and generate flame graphs, pinpointing the exact functions consuming CPU in kernel or user space.

Yes. The kmemleak profiler tracks kernel and user-space memory allocations and frees to identify leaks, while kmemprof profiles allocation patterns and stack traces.

The skill applies progressive latency analysis with multi-trace, rundelay, syscalls, and blktrace, starting from statistical overviews and narrowing down with thresholds to isolate abnormal events.

Yes. It only requires perf_event support, processes events in memory with low overhead, and runs safely in user space on a wide range of kernel versions.