linux-kernel - Re: [PATCH v3] perf/test: fix perf ftrace test on s390

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Message-Id: <173231386982.85365.3847262620412779645.b4-ty@kernel.org>
Date: Fri, 22 Nov 2024 14:17:49 -0800
From: Namhyung Kim <namhyung@...nel.org>
To: linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org, 
 acme@...nel.org, Thomas Richter <tmricht@...ux.ibm.com>
Cc: agordeev@...ux.ibm.com, gor@...ux.ibm.com, sumanthk@...ux.ibm.com, 
 hca@...ux.ibm.com, Sven Schnelle <svens@...ux.ibm.com>
Subject: Re: [PATCH v3] perf/test: fix perf ftrace test on s390

On Tue, 19 Nov 2024 07:48:56 +0100, Thomas Richter wrote:

> On s390 the perf test case ftrace sometimes fails as follows:
> 
>   # ./perf test ftrace
>   79: perf ftrace tests    : FAILED!
>   #
> 
> The failure depends on the kernel .config file. Some configurations
> always work fine, some do not.  The ftrace profile test mostly fails,
> because the ring buffer was not large enough, and some lines
> (especially the interesting ones with nanosleep in it) where dropped.
> 
> [...]

Applied to perf-tools-next, thanks!

Best regards,
Namhyung