linux-kernel - Re: [RFC PATCH v3] perf cs-etm: Split Coresight decode by aux records

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Message-ID: <8670c57d-063f-929f-a520-2be3bd4b86e9@arm.com>
Date:   Thu, 27 May 2021 13:45:27 +0300
From:   James Clark <james.clark@....com>
To:     acme@...nel.org, mathieu.poirier@...aro.org,
        coresight@...ts.linaro.org, leo.yan@...aro.org
Cc:     al.grant@....com, branislav.rankov@....com, denik@...omium.org,
        suzuki.poulose@....com, anshuman.khandual@....com,
        Mike Leach <mike.leach@...aro.org>,
        John Garry <john.garry@...wei.com>,
        Will Deacon <will@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        linux-arm-kernel@...ts.infradead.org,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH v3] perf cs-etm: Split Coresight decode by aux records



On 27/05/2021 13:42, James Clark wrote:
> Populate the auxtrace queues using AUX records rather than whole
> auxtrace buffers.
> 

I've attached a trace of Chrome using the strobing patchset that cannot
be decoded with unpatched perf, but produces events when this change is
applied.

Thanks
James

Download attachment "perf.data.tar.xz" of type "application/x-xz" (3922472 bytes)