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Thu, 04 Jun 2026 06:34:01 -0700 (PDT) Message-ID: Date: Thu, 4 Jun 2026 14:34:00 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 14/18] perf test cs-etm: Remove unused Coresight workloads From: James Clark To: Leo Yan Cc: Suzuki K Poulose , Mike Leach , Arnaldo Carvalho de Melo , Namhyung Kim , Jiri Olsa , Ian Rogers , Amir Ayupov , Jonathan Corbet , Shuah Khan , Paschalis Mpeis , coresight@lists.linaro.org, linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, Arnaldo Carvalho de Melo , linux-doc@vger.kernel.org References: <20260602-james-cs-context-tracking-fix-v2-0-85b5ce6f55c6@linaro.org> <20260602-james-cs-context-tracking-fix-v2-14-85b5ce6f55c6@linaro.org> <20260603172546.GE101133@e132581.arm.com> <8721d1b4-ce27-4ab0-9a24-138c31440e94@linaro.org> Content-Language: en-US In-Reply-To: <8721d1b4-ce27-4ab0-9a24-138c31440e94@linaro.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 04/06/2026 2:31 pm, James Clark wrote: > > > On 03/06/2026 6:25 pm, Leo Yan wrote: >> On Tue, Jun 02, 2026 at 03:26:56PM +0100, James Clark wrote: >> >> [...] >> >>> -When you run perf test, it will do a lot of self tests. Some of those >>> -tests will cover CoreSight (only if enabled and on ARM64). You >>> -generally would run perf test from the tools/perf directory in the >>> -kernel tree. Some tests will check some internal perf support like: >>> - >>> -   Check Arm CoreSight trace data recording and synthesized samples >>> -   Check Arm SPE trace data recording and synthesized samples >> >> Should we keep the chunk for but suggest a perf command as >> >>    perf test "CoreSight" ? >> > > I put this at the end, not sure if you saw it: > >  +There are a set of Perf tests for CoreSight which can be run with:: >  + >  +  sudo perf test coresight > > > "When you run perf test, it will do a lot of self tests." didn't seem > useful. And the other part about the directory was general advice which > I'm not even sure is accurate. The tests are supposed to install and you > can run them from anywhere. > >>> diff --git a/MAINTAINERS b/MAINTAINERS >>> index b539be153f6a..7efb893edcbb 100644 >>> --- a/MAINTAINERS >>> +++ b/MAINTAINERS >>> @@ -2751,7 +2751,6 @@ F:    tools/perf/arch/arm/util/cs-etm.h >>>   F:    tools/perf/arch/arm/util/pmu.c >>>   F:    tools/perf/tests/shell/*coresight* >>>   F:    tools/perf/tests/shell/coresight/* >>> -F:    tools/perf/tests/shell/lib/*coresight* >> >> Need to delete tools/perf/tests/shell/coresight/* ? I delete /*coresight* in the later commit when moving everything into the coresight/ folder, so only coresight/* remains. I think that's right? >> >> Thanks, >> Leo >