linux-kernel - Re: [PATCH 0/7] Split Coresight decode by aux records

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Date:   Mon, 1 Mar 2021 16:05:22 +0200
From:   James Clark <james.clark@....com>
To:     Mathieu Poirier <mathieu.poirier@...aro.org>
Cc:     coresight@...ts.linaro.org, al.grant@....com,
        branislav.rankov@....com, denik@...omium.org,
        suzuki.poulose@....com, Mike Leach <mike.leach@...aro.org>,
        Leo Yan <leo.yan@...aro.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        John Garry <john.garry@...wei.com>,
        Will Deacon <will@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/7] Split Coresight decode by aux records


On 24/02/2021 18:13, Mathieu Poirier wrote:
> Good day James,
> 
> I have received your patchset and added it to my queue.  On the flip side it
> will be 3 to 4 weeks (from today) before I get a chance to look at it.  As such
> I suggest you don't wait on me before addressing the issues found by Leo.
> 

Ok, thanks Mathieu. I found that it's only working in --per-thread mode by
coincidence of my input file. So I would suggest to not look too thoroughly
until I have submitted v2. It should also probably still be an RFC rather than PATCH.

Thanks
James

> Thanks,
> Mathieu
> 
> On Fri, Feb 12, 2021 at 04:45:06PM +0200, James Clark wrote:
>> Hi All,
>>
>> Since my previous RFC, I've fixed --per-thread mode and solved
>> most of the open questions. I've also changed --dump-raw-trace
>> to use the same code path so it's also working now.
>>
>> I think the only open questions are:
>>   * General approach
>>   * If aux records need to be saved, or if they can be pulled
>>     from elsewhere.
>>
>> I've also tested perf inject which is now working with troublesome
>> files.
>>
>> Thanks
>> James
>>
>> James Clark (7):
>>   perf cs-etm: Split up etm queue setup function
>>   perf cs-etm: Only search timestamp in current sample's queue.
>>   perf cs-etm: Save aux records in each etm queue
>>   perf cs-etm: don't process queues until cs_etm__flush_events
>>   perf cs-etm: split decode by aux records.
>>   perf cs-etm: Use existing decode code path for --dump-raw-trace
>>   perf cs-etm: Suppress printing when resetting decoder
>>
>>  .../perf/util/cs-etm-decoder/cs-etm-decoder.c |  10 +-
>>  tools/perf/util/cs-etm.c                      | 300 ++++++++++--------
>>  2 files changed, 168 insertions(+), 142 deletions(-)
>>
>> -- 
>> 2.28.0
>>