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perf ui/stdio: Implement hierarchy output mode

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The hierarchy output mode is to group entries for each level so that
user can see higher level picture more easily.  It also helps to find
out which component is most costly.  The output will look like below:

      15.11%     swapper
         14.97%     [kernel.vmlinux]
          0.09%     [libahci]
          0.05%     [iwlwifi]
      10.29%     irq/33-iwlwifi
          6.45%     [kernel.vmlinux]
          1.41%     [mac80211]
          1.15%     [iwldvm]
          1.14%     [iwlwifi]
          0.14%     [cfg80211]
       4.81%     firefox
          3.92%     libxul.so
          0.34%     [kernel.vmlinux]

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1456326830-30456-10-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim
2016-02-25 00:13:41 +09:00
committed by Arnaldo Carvalho de Melo
parent 1f2d72cf32
commit ef86d68a08
2 changed files with 80 additions and 1 deletions
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2
tools/perf/util/hist.h
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@ -437,4 +437,6 @@ static inline struct rb_node *rb_hierarchy_next(struct rb_node *node)
return __rb_hierarchy_next(node, HMD_NORMAL);
}
#define HIERARCHY_INDENT 3
#endif /* __PERF_HIST_H */