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perf tools: Change cpu_map__fprintf output

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Display cpu map in standard list form.  (perf report -D output on perf stat data).

before:
  0x590 [0x18]: PERF_RECORD_CPU_MAP nr: 4 cpus: 0, 1, 2, 3

after:
  0x590 [0x18]: PERF_RECORD_CPU_MAP: 0-3

Adding automated testcase.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1467113345-12669-4-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa
2016-06-28 13:29:04 +02:00
committed by Arnaldo Carvalho de Melo
parent 7fa9b8fba0
commit a24020e6b7
6 changed files with 79 additions and 7 deletions
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2
tools/perf/util/event.c
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@@ -1092,7 +1092,7 @@ size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp)
struct cpu_map *cpus = cpu_map__new_data(&event->cpu_map.data);
size_t ret;
ret = fprintf(fp, " nr: ");
ret = fprintf(fp, ": ");
if (cpus)
ret += cpu_map__fprintf(cpus, fp);