On Tue, 21 Apr 2020 07:18:05 +0200 Uladzislau Rezki <urezki@xxxxxxxxx> wrote: > <snip> > root@pc636:/sys/kernel/debug/tracing# cat set_ftrace_filter > measure_schedule_delayed_work.constprop.86 > root@pc636:/sys/kernel/debug/tracing# cat tracing_thresh > 5 > root@pc636:/sys/kernel/debug/tracing# cat current_tracer > function_graph > root@pc636:/sys/kernel/debug/tracing# > <snip> > > Also i set 5 microseconds threshold to filter out what is less > and added the latency-format trace option. Ah, I forgot that tracing_thresh affects function graph tracing. The tracing infrastructure has so many features, I can't even keep up ;-) -- Steve