Re: [PATCH] perf test: Do not compare overheads in the zstd comp test

From: Arnaldo Carvalho de Melo
Date: Fri Aug 13 2021 - 09:46:12 EST


Em Thu, Aug 12, 2021 at 05:09:20PM -0700, Ian Rogers escreveu:
> On Thu, Aug 12, 2021 at 4:57 PM Namhyung Kim <namhyung@xxxxxxxxxx> wrote:
> >
> > The overhead can vary on each run so it'd make the test failed
> > sometimes. Also order of hist entry can change.
> >
> > Use perf report -F option to omit the overhead field and sort the
> > result alphabetically.
> >
> > Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
>
> Acked-by: Ian Rogers <irogers@xxxxxxxxxx>

Thanks, applied.

- Arnaldo


> Thanks,
> Ian
>
> > ---
> > tools/perf/tests/shell/record+zstd_comp_decomp.sh | 4 ++--
> > 1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/tools/perf/tests/shell/record+zstd_comp_decomp.sh b/tools/perf/tests/shell/record+zstd_comp_decomp.sh
> > index 045723b3d992..8a168cf8bacc 100755
> > --- a/tools/perf/tests/shell/record+zstd_comp_decomp.sh
> > +++ b/tools/perf/tests/shell/record+zstd_comp_decomp.sh
> > @@ -25,8 +25,8 @@ check_compressed_stats() {
> >
> > check_compressed_output() {
> > $perf_tool inject -i $trace_file -o $trace_file.decomp &&
> > - $perf_tool report -i $trace_file --stdio | head -n -3 > $trace_file.comp.output &&
> > - $perf_tool report -i $trace_file.decomp --stdio | head -n -3 > $trace_file.decomp.output &&
> > + $perf_tool report -i $trace_file --stdio -F comm,dso,sym | head -n -3 > $trace_file.comp.output &&
> > + $perf_tool report -i $trace_file.decomp --stdio -F comm,dso,sym | head -n -3 > $trace_file.decomp.output &&
> > diff $trace_file.comp.output $trace_file.decomp.output
> > }
> >
> > --
> > 2.33.0.rc1.237.g0d66db33f3-goog
> >

--

- Arnaldo