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Groups > linux.kernel > #1463871

Re: RFC: callchain showing same entry as hist_entry

From Jiri Olsa <jolsa@redhat.com>
Newsgroups linux.kernel
Subject Re: RFC: callchain showing same entry as hist_entry
Date 2016-08-16 17:00 +0200
Message-ID <s6O0p-4mE-9@gated-at.bofh.it> (permalink)
References <s6NH3-4gh-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Tue, Aug 16, 2016 at 11:36:28AM -0300, Arnaldo Carvalho de Melo wrote:
> Hi Namhyung, Jiri,
> 
> 	please take a look at the patch below, and Ack if possible, it
> is a problem introduced in:
> 
>   cfaa154b2335 ("perf tools: Get rid of obsolete hist_entry__sort_list")
> 
> That is not equivalent to the code that was there and results in having
> the same entry as the first entry for the callchain as in the
> hist_entry, which is annoying and doesn't match the original intent of
> that 'continue' branch, as described in the comment right above it.
> 
> Now looking at doing the same for the TUI...

yep, seems ok.. no sort_order -> no first entry

jirka

> 
> - Arnaldo
> 
> diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
> index 9b65f4a6b35a..46a083e59ce9 100644
> --- a/tools/perf/ui/stdio/hist.c
> +++ b/tools/perf/ui/stdio/hist.c
> @@ -207,7 +207,7 @@ static size_t callchain__fprintf_graph(FILE *fp, struct rb_root *root,
>  			 * displayed twice.
>  			 */
>  			if (!i++ && field_order == NULL &&
> -			    sort_order && !prefixcmp(sort_order, "sym"))
> +			    (sort_order == NULL || !prefixcmp(sort_order, "sym")))
>  				continue;
>  			if (!printed) {
>  				ret += callchain__fprintf_left_margin(fp, left_margin);

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Thread

RFC: callchain showing same entry as hist_entry Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-08-16 16:40 +0200
  Re: RFC: callchain showing same entry as hist_entry Jiri Olsa <jolsa@redhat.com> - 2016-08-16 17:00 +0200
  Re: RFC: callchain showing same entry as hist_entry Namhyung Kim <namhyung@kernel.org> - 2016-08-16 17:00 +0200
    Re: RFC: callchain showing same entry as hist_entry Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-08-16 17:20 +0200
      Re: RFC: callchain showing same entry as hist_entry Namhyung Kim <namhyung@kernel.org> - 2016-08-16 17:30 +0200
        Re: RFC: callchain showing same entry as hist_entry Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-08-16 17:40 +0200
          Re: RFC: callchain showing same entry as hist_entry Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-08-16 17:40 +0200
            Re: RFC: callchain showing same entry as hist_entry Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-08-16 17:50 +0200
              Re: RFC: callchain showing same entry as hist_entry Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-08-16 21:30 +0200
                Re: RFC: callchain showing same entry as hist_entry Namhyung Kim <namhyung@kernel.org> - 2016-08-19 04:30 +0200
            Re: RFC: callchain showing same entry as hist_entry Namhyung Kim <namhyung@kernel.org> - 2016-08-16 17:50 +0200

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