On Fri, Feb 05, 2016 at 10:01:55PM +0900, Namhyung Kim wrote:
> Support hierarchy output for perf-top using --hierarchy option.
> 
> Acked-by: Pekka Enberg <[email protected]>
> Signed-off-by: Namhyung Kim <[email protected]>
> ---
>  tools/perf/Documentation/perf-top.txt |  3 +++
>  tools/perf/builtin-top.c              | 15 +++++++++++++++
>  2 files changed, 18 insertions(+)
> 
> diff --git a/tools/perf/Documentation/perf-top.txt 
> b/tools/perf/Documentation/perf-top.txt
> index b0e60e17db38..19f046f027cd 100644
> --- a/tools/perf/Documentation/perf-top.txt
> +++ b/tools/perf/Documentation/perf-top.txt
> @@ -233,6 +233,9 @@ Default is to monitor all CPUS.
>  --raw-trace::
>       When displaying traceevent output, do not use print fmt or plugins.
>  
> +--hierarchy::
> +     Enable hierarchy output.
> +
>  INTERACTIVE PROMPTING KEYS
>  --------------------------
>  
> diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
> index a75de3940b97..b86b623e8799 100644
> --- a/tools/perf/builtin-top.c
> +++ b/tools/perf/builtin-top.c
> @@ -1214,6 +1214,8 @@ int cmd_top(int argc, const char **argv, const char 
> *prefix __maybe_unused)
>                    parse_branch_stack),
>       OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace,
>                   "Show raw trace event output (do not use print fmt or 
> plugins)"),
> +     OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy,
> +                 "Show entries in a hierarchy"),
>       OPT_END()
>       };
>       const char * const top_usage[] = {
> @@ -1241,6 +1243,19 @@ int cmd_top(int argc, const char **argv, const char 
> *prefix __maybe_unused)
>               goto out_delete_evlist;
>       }
>  
> +     if (symbol_conf.report_hierarchy) {
> +             /* disable incompatible options */
> +             symbol_conf.event_group = false;
> +             symbol_conf.cumulate_callchain = false;
> +
> +             if (field_order) {
> +                     pr_err("Error: --hierarchy and --fields options cannot 
> be used together\n");
> +                     parse_options_usage(top_usage, options, "fields", 0);
> +                     parse_options_usage(NULL, options, "hierarchy", 0);
> +                     goto out_delete_evlist;
> +             }
> +     }

I was wondering about this when I was going through the patchset ;-)

jirka

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