linux-kernel - Re: [PATCH 0/3] rtla/timerlat: Set OSNOISE

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Message-ID: <CAP4=nvRCw_2hKPUyd7obZv2Xho_mjdSC7EmozFsoeS0OZC9xaA@mail.gmail.com>
Date: Thu, 9 Jan 2025 10:50:33 +0100
From: Tomas Glozar <tglozar@...hat.com>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: linux-trace-kernel@...r.kernel.org, linux-kernel@...r.kernel.org, 
	John Kacur <jkacur@...hat.com>, Luis Goncalves <lgoncalv@...hat.com>
Subject: Re: [PATCH 0/3] rtla/timerlat: Set OSNOISE_WORKLOAD for kernel threads

út 7. 1. 2025 v 22:43 odesílatel Steven Rostedt <rostedt@...dmis.org> napsal:
>
> BTW, are you going to be implementing any selftests for rtla so that it is
> easy to test these changes and check for regressions?

Ah right, I promised that some time ago. I have a simple test suite
adapted from CKI tests [1] that is close to being ready, I was having
some doubts about the implementation, but I will send it after adding
a few comments into the code so it can be discussed.

I have discovered already through the tests that this OSNOISE_WORKLOAD
issue also affects rtla-osnoise, not only rtla-timerlat, so it is
definitely at least somehow useful.

[1] - https://gitlab.com/redhat/centos-stream/tests/kernel/kernel-tests/-/blob/main/rt-tests/us/rtla/

> -- Steve
>

Tomas