* Re: stopping ftrace on event
[not found] <4044532.36S9Iv5CRb@desktop>
@ 2022-07-06 11:31 ` Daniel Bristot de Oliveira
2022-07-06 11:51 ` Benjamin Steinke
0 siblings, 1 reply; 2+ messages in thread
From: Daniel Bristot de Oliveira @ 2022-07-06 11:31 UTC (permalink / raw)
To: Benjamin Steinke; +Cc: linux-rt-users, linux-trace-devel@vger.kernel.org
On 7/6/22 10:50, Benjamin Steinke wrote:
> Hi all,
>
> I'm hunting sporadic high irq-handler latencies in a pcie driver by using
> ftrace. I'm currently using trace-cmd record but get way to large files due to
> the event being so infrequent.
>
> Is there a way to stop tracing or dump the current trace buffer when a specific
> event occurs?
https://www.kernel.org/doc/html/latest/trace/events.html#event-triggers ?
-- Daniel
> Thanks for your help,
> Benjamin
>
>
>
>
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: stopping ftrace on event
2022-07-06 11:31 ` stopping ftrace on event Daniel Bristot de Oliveira
@ 2022-07-06 11:51 ` Benjamin Steinke
0 siblings, 0 replies; 2+ messages in thread
From: Benjamin Steinke @ 2022-07-06 11:51 UTC (permalink / raw)
To: Daniel Bristot de Oliveira
Cc: linux-rt-users, linux-trace-devel@vger.kernel.org
Am Mittwoch, 6. Juli 2022, 13:31:00 CEST schrieb Daniel Bristot de Oliveira:
> On 7/6/22 10:50, Benjamin Steinke wrote:
> > Hi all,
> >
> > I'm hunting sporadic high irq-handler latencies in a pcie driver by using
> > ftrace. I'm currently using trace-cmd record but get way to large files
> > due to the event being so infrequent.
> >
> > Is there a way to stop tracing or dump the current trace buffer when a
> > specific event occurs?
>
> https://www.kernel.org/doc/html/latest/trace/events.html#event-triggers ?
Oh, didn't see the forest for the trees. I probably scrolled a number of times
over this section. Thanks a lot.
>
> -- Daniel
>
> > Thanks for your help,
> > Benjamin
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2022-07-06 11:58 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
[not found] <4044532.36S9Iv5CRb@desktop>
2022-07-06 11:31 ` stopping ftrace on event Daniel Bristot de Oliveira
2022-07-06 11:51 ` Benjamin Steinke
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).