perf report: Group stat values on global event id

There's no big value on displaying counts for every event ID, which is
one per every CPU. Rather than that, displaying the whole sum for the
event.

  $ perf record -c 100000 -e cycles:u -s test
  $ perf report -T

Before:
  #  PID   TID  cycles:u  cycles:u  cycles:u  cycles:u  ... [20 more columns of 'cycles:u']
    3339  3339         0         0         0         0
    3340  3340         0         0         0         0
    3341  3341         0         0         0         0
    3342  3342         0         0         0         0

Now:
  #  PID   TID  cycles:u
    3339  3339     19678
    3340  3340     18744
    3341  3341     17335
    3342  3342     26414

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20170824162737.7813-10-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 9e4004b08f559222641fdd2067eaeee06a3aeef9..f9dff652dcbdb01854ad8478c2218acc5caaf2ae 100644 (file)
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -241,7 +241,7 @@ static int process_read_event(struct perf_tool *tool,
                const char *name = evsel ? perf_evsel__name(evsel) : "unknown";
                int err = perf_read_values_add_value(&rep->show_threads_values,
                                           event->read.pid, event->read.tid,
-                                          event->read.id,
+                                          evsel->idx,
                                           name,
                                           event->read.value);
 

diff --git a/tools/perf/util/values.c b/tools/perf/util/values.c
index 3b56aeaa8cbb5ceba357a4baa99c1446b186500e..8a32bb0095e5e61616319c4145124948f9bfb21c 100644 (file)
--- a/tools/perf/util/values.c
+++ b/tools/perf/util/values.c
@@ -192,7 +192,7 @@ int perf_read_values_add_value(struct perf_read_values *values,
        if (cindex < 0)
                return cindex;
 
-       values->value[tindex][cindex] = value;
+       values->value[tindex][cindex] += value;
        return 0;
 }