August 23, 2017 — 16:45

Author: silver  Category: linux  Comments: Off

perf – performance analysis tools for Linux

Start with:

perf top
perf bench all


To find out why “kworker” process (kernel per-cpu threads) has high CPU usage:

  • record 10 seconds of backtraces on all CPUs to
    perf record -g -a sleep 10
  • analyse recording:
    perf report

More info:

We use Matomo free and open source web analytics
We also use Jetpack Stats which honors DNT