linux-kernel - Re: [PATCH V4 05/19] trace/osnoise: Allow multiple instances of the same tracer

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Message-ID: <20211025103657.1c30a2c0@gandalf.local.home>
Date:   Mon, 25 Oct 2021 10:36:57 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Daniel Bristot de Oliveira <bristot@...nel.org>
Cc:     Ingo Molnar <mingo@...hat.com>, Tom Zanussi <zanussi@...nel.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Juri Lelli <juri.lelli@...hat.com>,
        Clark Williams <williams@...hat.com>,
        John Kacur <jkacur@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        linux-rt-users@...r.kernel.org, linux-trace-devel@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH V4 05/19] trace/osnoise: Allow multiple instances of the
 same tracer

On Mon, 25 Oct 2021 10:08:39 +0200
Daniel Bristot de Oliveira <bristot@...nel.org> wrote:

> osnoise and timerlat tracers share a lot of code, including the osnoise: events.
> 
> However, the osnoise: events have different behavior depending on which tracer
> is enabled. So, while this patch allows the same tracer to run in multiple
> instances (e.g., two instances running osnoise), it still does not allow
> instances of timerlat and osnoise in parallel (e.g., one timerlat and osnoise).
> 
> Should I add the text above to the log?

Yes please.

-- Steve