how to use ftrace to track linux fair (scheduler) process

Question

I'm working on a project on CFS. Using Ftrace to track the whole path of fair process in Linux.

[tracing]# echo $$ > set_ftrace_pid

I can track the specific process with process pid. But fair process pid isn't static (changes rapidly) so, I'm not able to track it.

I'm new to stack overflow and system programming.

score 0 · Answer 1 · edited Oct 09 '19 at 13:42

0

You may like to have a look at Off-CPU Flame Graphs, which show what processes block on and what wakes them up.

edited Oct 09 '19 at 13:42

Glorfindel

answered Jan 26 '17 at 12:12

Maxim Egorushkin

1 Answers1