linux-kernel - Re: [PATCH v2] perf: Timehist account sch delay for scheduled out running

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <171937438265.2859655.8730491101054759651.b4-ty@kernel.org>
Date: Tue, 25 Jun 2024 20:59:58 -0700
From: Namhyung Kim <namhyung@...nel.org>
To: Fernand Sieber <sieberf@...zon.com>
Cc: linux-perf-users@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Madadi Vineeth Reddy <vineethr@...ux.ibm.com>
Subject: Re: [PATCH v2] perf: Timehist account sch delay for scheduled out running

On Tue, 18 Jun 2024 11:03:39 +0200, Fernand Sieber wrote:

> When using perf timehist, sch delay is only computed for a waking task,
> not for a pre empted task. This patches changes sch delay to account for
> both. This makes sense as testing scheduling policy need to consider the
> effect of scheduling delay globally, not only for waking tasks.
> 
> Example of `perf timehist` report before the patch for `stress` task
> competing with each other.
> 
> [...]

Applied to perf-tools-next, thanks!

Best regards,
Namhyung