linux-kernel - Re: [PATCH 15/48] perf report: Add 'type' sort key

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Date:   Tue, 24 Oct 2023 12:11:46 -0700
From:   Namhyung Kim <namhyung@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Jiri Olsa <jolsa@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Ingo Molnar <mingo@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-perf-users@...r.kernel.org,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Stephane Eranian <eranian@...gle.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        linux-toolchains@...r.kernel.org, linux-trace-devel@...r.kernel.org
Subject: Re: [PATCH 15/48] perf report: Add 'type' sort key

On Mon, Oct 23, 2023 at 9:53 AM Arnaldo Carvalho de Melo
<acme@...nel.org> wrote:
>
> Em Wed, Oct 11, 2023 at 08:50:38PM -0700, Namhyung Kim escreveu:
> > The 'type' sort key is to aggregate hist entries by data type they
> > access.  Add mem_type field to hist_entry struct to save the type.
> > If hist_entry__get_data_type() returns NULL, it'd use the
> > 'unknown_type' instance.
>
> Needed the patch below, doing the same that is a bit before for
> libtraceevent

I think it can always return unknown_type if libtraceevent is not
enabled.  Maybe I need to move the definition here then.

Thanks,
Namhyung

>
> diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
> index c79564c1d5df5db3..3fae226d115ef8e6 100644
> --- a/tools/perf/util/sort.c
> +++ b/tools/perf/util/sort.c
> @@ -2132,6 +2132,7 @@ struct sort_entry sort_addr = {
>         .se_width_idx   = HISTC_ADDR,
>  };
>
> +#ifdef HAVE_DWARF_SUPPORT
>  /* --sort type */
>
>  static int64_t
> @@ -2190,7 +2191,7 @@ struct sort_entry sort_type = {
>         .se_snprintf    = hist_entry__type_snprintf,
>         .se_width_idx   = HISTC_TYPE,
>  };
> -
> +#endif // HAVE_DWARF_SUPPORT
>
>  struct sort_dimension {
>         const char              *name;
> @@ -2246,7 +2247,9 @@ static struct sort_dimension common_sort_dimensions[] = {
>         DIM(SORT_LOCAL_RETIRE_LAT, "local_retire_lat", sort_local_p_stage_cyc),
>         DIM(SORT_GLOBAL_RETIRE_LAT, "retire_lat", sort_global_p_stage_cyc),
>         DIM(SORT_SIMD, "simd", sort_simd),
> +#ifdef HAVE_DWARF_SUPPORT
>         DIM(SORT_ANNOTATE_DATA_TYPE, "type", sort_type),
> +#endif
>  };
>
>  #undef DIM