linux-kernel - Re: [PATCH v7 0/9] perf report: Add latency and parallelism profiling

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Message-ID: <Z6-F35N8fkhTvagn@tassilo>
Date: Fri, 14 Feb 2025 10:05:19 -0800
From: Andi Kleen <ak@...ux.intel.com>
To: Dmitry Vyukov <dvyukov@...gle.com>
Cc: namhyung@...nel.org, irogers@...gle.com, acme@...nel.org,
	linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 0/9] perf report: Add latency and parallelism profiling

On Thu, Feb 13, 2025 at 10:08:13AM +0100, Dmitry Vyukov wrote:
> There are two notions of time: wall-clock time and CPU time.
> For a single-threaded program, or a program running on a single-core
> machine, these notions are the same. However, for a multi-threaded/
> multi-process program running on a multi-core machine, these notions are
> significantly different. Each second of wall-clock time we have
> number-of-cores seconds of CPU time.

I read through it and it looks good to me.

For the patchkit.

Reviewed-by: Andi Kleen <ak@...ux.intel.com>