linux-kernel - Re: [RFC PATCH 0/1] perf test cs-etm: Add end-to-end tests for CoreSight decoding

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Message-ID: <Yovo33Qh7eE7pTn1@kernel.org>
Date:   Mon, 23 May 2022 17:04:47 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     German Gomez <german.gomez@....com>
Cc:     linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        james.clark@....com, leo.yan@...aro.org,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>
Subject: Re: [RFC PATCH 0/1] perf test cs-etm: Add end-to-end tests for
 CoreSight decoding

Em Mon, May 23, 2022 at 03:49:51PM +0100, German Gomez escreveu:
> Hi
> 
> While discussing running more tests for CoreSight, we thought it might
> be a good idea to upstream some EndToEnd tests for CoreSight decoding in
> order to lock down the behaviour. I am sending this as RFC to get some
> feedback from the community first.
> 
> The test relies on pre-geneated perf.data files that are downloaded
> during the test. I'm not sure it's a good idea to commit those files to
> the Linux repository, so they would have to live in an external source
> and be downloaded during the test.

That is ok, but please cache it locally, so that from the second 'perf
test' run onwards one doesn´t have to incur in the download delay and
also be able to run the tests while not connected.

- Arnaldo
 
> For this RFC, the files are stored in a Github repository [1]. As an
> idea, I think we could store them in a new repo in the ARM-software
> namespace. Any hosting suggestions are very welcome.
> 
> Thanks,
> German
> 
> [1] https://github.com/ARM-software/data/tree/984cde8fb0bb22591e284826a80b338bb79c3655/perf/coresight
> 
> German Gomez (1):
>   perf test cs-etm: Add end-to-end tests for CoreSight decoding
> 
>  tools/perf/tests/shell/lib/arm_auxtrace.sh    | 21 +++++++
>  .../tests/shell/test_arm_coresight_decoder.sh | 57 +++++++++++++++++++
>  2 files changed, 78 insertions(+)
>  create mode 100644 tools/perf/tests/shell/lib/arm_auxtrace.sh
>  create mode 100755 tools/perf/tests/shell/test_arm_coresight_decoder.sh
> 
> -- 
> 2.25.1

-- 

- Arnaldo