Event Tracing in the Linux kernel

Constantine Shulyupin constantine.shulyupin at gmail.com
Wed Mar 2 09:53:30 EST 2022


Please check
https://www.kernel.org/doc/html/latest/trace/events.html

On Wed, 2 Mar 2022 at 16:38, David Kahurani <k.kahurani at gmail.com> wrote:

> Hello,
>
> I have compiled a pretty recent Linux kernel mostly basing the
> configuration on the older kernel.
>
> I am now testing out the event tracing system but seem to be having a
> problem.
>
> Having enabled all events with
>
> # echo *:* > /sys/kernel/debug/tracing/set_event
>
> As described here [1], I expect that dmesg shows me some traces but there
> aren't any. My dmesg logs are empty(just the same as with not having
> enabled the events).
>
> What could I be missing? Am I checking the wrong place for the trace? Are
> there no tracepoints getting hit?
>
> Any hits and pointers would be much appreciated.
>
> Regards,
> David
>
>
>
>
>
>
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-- 
Constantine Shulyupin
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