linux-kernel - Re: [PATCH 5/8] perf test: Add system-wide mode in perf record tests

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Message-ID: <Y1lAFJV3IO+P+3u2@kernel.org>
Date:   Wed, 26 Oct 2022 11:11:32 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ian Rogers <irogers@...gle.com>
Cc:     Namhyung Kim <namhyung@...nel.org>, Jiri Olsa <jolsa@...nel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        linux-perf-users@...r.kernel.org
Subject: Re: [PATCH 5/8] perf test: Add system-wide mode in perf record tests

Em Thu, Oct 20, 2022 at 05:00:39PM -0700, Ian Rogers escreveu:
> On Thu, Oct 20, 2022 at 10:26 AM Namhyung Kim <namhyung@...nel.org> wrote:
> >
> > Add system wide recording test with the same pattern.  It'd skip the
> > test when it failes to run perf record.  For system-wide mode, it needs
> 
> nit: s/failes/fails/
> 
> > to avoid build-id collection and synthesis because the test only cares
> > about the test program and kernel would generates necessary events as
> 
> nit: s/generates/generate the/

fixed
 
> > the process starts.
> >
> > Reviewed-by: Adrian Hunter <adrian.hunter@...el.com>
> > Signed-off-by: Namhyung Kim <namhyung@...nel.org>
> 
> Acked-by: Ian Rogers <irogers@...gle.com>
> 
> Thanks,
> Ian
> 
> > ---
> >  tools/perf/tests/shell/record.sh | 21 +++++++++++++++++++++
> >  1 file changed, 21 insertions(+)
> >
> > diff --git a/tools/perf/tests/shell/record.sh b/tools/perf/tests/shell/record.sh
> > index d1640d1daf2e..345764afb745 100755
> > --- a/tools/perf/tests/shell/record.sh
> > +++ b/tools/perf/tests/shell/record.sh
> > @@ -154,10 +154,31 @@ test_register_capture() {
> >    echo "Register capture test [Success]"
> >  }
> >
> > +test_system_wide() {
> > +  echo "Basic --system-wide mode test"
> > +  if ! perf record -aB --synth=no -o "${perfdata}" ${testprog} 2> /dev/null
> > +  then
> > +    echo "System-wide record [Skipped not supported]"
> > +    if [ $err -ne 1 ]
> > +    then
> > +      err=2
> > +    fi
> > +    return
> > +  fi
> > +  if ! perf report -i "${perfdata}" -q | grep -q "${testsym}"
> > +  then
> > +    echo "System-wide record [Failed missing output]"
> > +    err=1
> > +    return
> > +  fi
> > +  echo "Basic --system-wide mode test [Success]"
> > +}
> > +
> >  build_test_program
> >
> >  test_per_thread
> >  test_register_capture
> > +test_system_wide
> >
> >  cleanup
> >  exit $err
> > --
> > 2.38.0.135.g90850a2211-goog
> >

-- 

- Arnaldo