linux-kernel - Re: [PATCH v1] rtla: Save trace when option `--trace` is specified

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Message-ID: <CAP4=nvRtY+kEzxW9Lj2uSYZuFhuESbYs3yj0oq6resyuWVHjjQ@mail.gmail.com>
Date: Tue, 4 Mar 2025 09:03:55 +0100
From: Tomas Glozar <tglozar@...hat.com>
To: Costa Shulyupin <costa.shul@...hat.com>
Cc: Steven Rostedt <rostedt@...dmis.org>, linux-trace-kernel@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] rtla: Save trace when option `--trace` is specified

po 3. 3. 2025 v 16:55 odesílatel Costa Shulyupin <costa.shul@...hat.com> napsal:
>
> Actually trace collection can be performed using just trace-cmd start,
> trace-cmd stop, and trace-cmd extract.
>

Yes, but that does not necessarily mean we cannot add it to rtla, too;
we already do that e.g. for event histograms, which you could also
replace with trace-cmd. It has the benefit of synchronizing the
start/stop of the trace collection with the osnoise/timerlat tracer.

Tomas