From: Benjamin Steinke <benjamin.steinke@woks-audio.com>
To: Daniel Bristot de Oliveira <bristot@redhat.com>
Cc: linux-rt-users <linux-rt-users@vger.kernel.org>,
"linux-trace-devel@vger.kernel.org"
<linux-trace-devel@vger.kernel.org>
Subject: Re: stopping ftrace on event
Date: Wed, 6 Jul 2022 13:51:06 +0200 [thread overview]
Message-ID: <5900013.0QKTdidtKr@desktop> (raw)
In-Reply-To: <c8aa45af-9a64-8318-71d6-91511afed8e6@redhat.com>
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
prev parent reply other threads:[~2022-07-06 11:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[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 message]
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