linux-kernel - Re: [PATCH 05/19] perf stat: Add cpu aggr id for no aggregation mode

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Date:   Wed, 12 Oct 2022 09:27:39 -0700
From:   Namhyung Kim <namhyung@...nel.org>
To:     Jiri Olsa <olsajiri@...il.com>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        linux-perf-users <linux-perf-users@...r.kernel.org>,
        Kan Liang <kan.liang@...ux.intel.com>,
        Leo Yan <leo.yan@...aro.org>, Andi Kleen <ak@...ux.intel.com>,
        Athira Rajeev <atrajeev@...ux.vnet.ibm.com>,
        James Clark <james.clark@....com>,
        Xing Zhengjun <zhengjun.xing@...ux.intel.com>
Subject: Re: [PATCH 05/19] perf stat: Add cpu aggr id for no aggregation mode

On Wed, Oct 12, 2022 at 3:40 AM Jiri Olsa <olsajiri@...il.com> wrote:
>
> On Sun, Oct 09, 2022 at 10:35:46PM -0700, Namhyung Kim wrote:
> > Likewise, add an aggr_id for cpu for none aggregation mode.  This is not
> > used actually yet but later code will use to unify the aggregation code.
> >
> > No functional change intended.
> >
> > Signed-off-by: Namhyung Kim <namhyung@...nel.org>
> > ---
> >  tools/perf/builtin-stat.c | 48 +++++++++++++++++++++++++++++++++++----
> >  1 file changed, 43 insertions(+), 5 deletions(-)
> >
> > diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
> > index 144bb3a657f2..b00ef20aef5b 100644
> > --- a/tools/perf/builtin-stat.c
> > +++ b/tools/perf/builtin-stat.c
> > @@ -1339,6 +1339,12 @@ static struct aggr_cpu_id perf_stat__get_global(struct perf_stat_config *config
> >       return id;
> >  }
> >
> > +static struct aggr_cpu_id perf_stat__get_cpu(struct perf_stat_config *config __maybe_unused,
> > +                                          struct perf_cpu cpu)
> > +{
> > +     return aggr_cpu_id__cpu(cpu, /*data=*/NULL);
> > +}
> > +
> >  static struct aggr_cpu_id perf_stat__get_aggr(struct perf_stat_config *config,
> >                                             aggr_get_id_t get_id, struct perf_cpu cpu)
> >  {
> > @@ -1381,6 +1387,12 @@ static struct aggr_cpu_id perf_stat__get_global_cached(struct perf_stat_config *
> >       return perf_stat__get_aggr(config, perf_stat__get_global, cpu);
> >  }
> >
> > +static struct aggr_cpu_id perf_stat__get_cpu_cached(struct perf_stat_config *config,
> > +                                                 struct perf_cpu cpu)
> > +{
> > +     return perf_stat__get_aggr(config, perf_stat__get_cpu, cpu);
> > +}
> > +
> >  static bool term_percore_set(void)
> >  {
> >       struct evsel *counter;
> > @@ -1407,8 +1419,7 @@ static aggr_cpu_id_get_t aggr_mode__get_aggr(enum aggr_mode aggr_mode)
> >       case AGGR_NONE:
> >               if (term_percore_set())
> >                       return aggr_cpu_id__core;
> > -
> > -             return NULL;
> > +             return aggr_cpu_id__cpu;;
>
> nit, double ;; ;-)

Good eye :)  I'll remove it.

Thanks,
Namhyung