linux-kernel - Re: [PATCH] perf report: Set PERF_SAMPLE_DATA

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Message-ID: <Yld324cGySbCPF9i@kernel.org>
Date:   Wed, 13 Apr 2022 22:24:43 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Leo Yan <leo.yan@...aro.org>
Cc:     German Gomez <german.gomez@....com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Ravi Bangoria <ravi.bangoria@...ux.ibm.com>,
        James Clark <james.clark@....com>,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf report: Set PERF_SAMPLE_DATA_SRC bit for Arm SPE
 event

Em Wed, Apr 13, 2022 at 04:49:41PM +0800, Leo Yan escreveu:
> On Wed, Apr 13, 2022 at 09:15:40AM +0100, German Gomez wrote:
> 
> [...]
> 
> > >  	if (sort__mode == SORT_MODE__MEMORY) {
> > > +		/*
> > > +		 * FIXUP: prior to kernel 5.18, Arm SPE missed to set
> > > +		 * PERF_SAMPLE_DATA_SRC bit in sample type.  For backward
> > > +		 * compatibility, set the bit if it's an old perf data file.
> > > +		 */
> > > +		evlist__for_each_entry(session->evlist, evsel) {
> > > +			if (strstr(evsel->name, "arm_spe_") &&
> > 
> > This didn't work for me when the file recorded "-e arm_spe//" instead of
> > "-e arm_spe_0//". Could you remove the trailing _? With that:
> 
> Sure, will change to "arm_spe".  Just curious, if there any local
> change at your side so we have the different event name?

Ok, waiting for v2
 
> > Tested-by: German Gomez <german.gomez@....com>
> 
> Thanks a lot, German!
> 
> Leo

-- 

- Arnaldo