linux-kernel - Re: [PATCH V3 9/9] tracing: Add timerlat tracer

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Message-ID: <20210612190948.4fa93611@rorschach.local.home>
Date:   Sat, 12 Jun 2021 19:09:48 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Daniel Bristot de Oliveira <bristot@...hat.com>
Cc:     linux-kernel@...r.kernel.org, Phil Auld <pauld@...hat.com>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Kate Carcia <kcarcia@...hat.com>,
        Jonathan Corbet <corbet@....net>,
        Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Alexandre Chartre <alexandre.chartre@...cle.com>,
        Clark Willaims <williams@...hat.com>,
        John Kacur <jkacur@...hat.com>,
        Juri Lelli <juri.lelli@...hat.com>, linux-doc@...r.kernel.org
Subject: Re: [PATCH V3 9/9] tracing: Add timerlat tracer

On Sat, 12 Jun 2021 10:47:16 +0200
Daniel Bristot de Oliveira <bristot@...hat.com> wrote:

> Thinking only about the instrumentation/events, what they are tracking is the
> execution time. So how about naming them as:
> 
> exec_time:thread
> exec_time:irq

I guess. I should go and look at your other code.

> 
> Also adding that, although here we measure the execution time of "task" context,
> on rtsl we have other kinds of "windows" that they measure, for instance, the
> poid window (Preemption or IRQ disabled). So, the term exec time also fits there.

LOL at "poid"

-- Steve