linux-kernel - Re: [PATCH v3] perf test shell tpebs: Extra verbosity and hypervisor skip

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Message-Id: <173868996642.666026.11209605803068738109.b4-ty@kernel.org>
Date: Tue, 04 Feb 2025 09:26:06 -0800
From: Namhyung Kim <namhyung@...nel.org>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
 Arnaldo Carvalho de Melo <acme@...nel.org>, 
 Mark Rutland <mark.rutland@....com>, 
 Alexander Shishkin <alexander.shishkin@...ux.intel.com>, 
 Jiri Olsa <jolsa@...nel.org>, Adrian Hunter <adrian.hunter@...el.com>, 
 Kan Liang <kan.liang@...ux.intel.com>, James Clark <james.clark@...aro.org>, 
 Weilin Wang <weilin.wang@...el.com>, linux-perf-users@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Thomas Falcon <thomas.falcon@...el.com>, 
 Ian Rogers <irogers@...gle.com>
Subject: Re: [PATCH v3] perf test shell tpebs: Extra verbosity and
 hypervisor skip

On Thu, 30 Jan 2025 09:01:35 -0800, Ian Rogers wrote:
> When not running as root and with higher perf event paranoia values
> the perf record forked by TPEBS can fail to attach to the process. Skip
> the test in these scenarios.
> 
> Intel TPEBS test skips on non-Intel CPUs. On Intel CPUs under a
> hypervisor the cache-misses event may not be present or precise. Skip
> the test under this condition.
> 
> [...]
Applied to perf-tools-next, thanks!

Best regards,
Namhyung