linux-kernel - Re: [PATCH] perf bench sched pipe: fix enforced blocking reads in worker

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Message-Id: <174283407799.1817265.5810920957697722806.b4-ty@kernel.org>
Date: Mon, 24 Mar 2025 09:34:37 -0700
From: Namhyung Kim <namhyung@...nel.org>
To: Arnaldo Carvalho de Melo <acme@...nel.org>, 
 Jiri Olsa <jolsa@...nel.org>, Dirk Gouders <dirk@...ders.net>
Cc: Ian Rogers <irogers@...gle.com>, 
 Adrian Hunter <adrian.hunter@...el.com>, 
 Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...nel.org>, 
 LKML <linux-kernel@...r.kernel.org>, linux-perf-users@...r.kernel.org
Subject: Re: [PATCH] perf bench sched pipe: fix enforced blocking reads in
 worker_thread

On Sun, 23 Mar 2025 15:01:01 +0100, Dirk Gouders wrote:
> The function worker_thread() is programmed in a way that roughly
> doubles the number of expectable context switches, because it enforces
> blocking reads:
> 
>  Performance counter stats for 'perf bench sched pipe':
> 
>          2,000,004      context-switches
> 
> [...]
Applied to perf-tools-next, thanks!

Best regards,
Namhyung