* 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
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[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
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