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perf stat: Do not align time prefix in CSV output

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We don't care about the alignment in the CSV output as it's intended for machine
processing.  Let's get rid of it to make the output more compact.

Before:

  # perf stat -a --summary -I 1 -x, true
       0.001149309,219.20,msec,cpu-clock,219322251,100.00,219.200,CPUs utilized
       0.001149309,144,,context-switches,219241902,100.00,656.935,/sec
       0.001149309,38,,cpu-migrations,219173705,100.00,173.358,/sec
       0.001149309,61,,page-faults,219093635,100.00,278.285,/sec
       0.001149309,10679310,,cycles,218746228,100.00,0.049,GHz
       0.001149309,6288296,,instructions,218589869,100.00,0.59,insn per cycle
       0.001149309,1386904,,branches,218428851,100.00,6.327,M/sec
       0.001149309,56863,,branch-misses,218219951,100.00,4.10,of all branches
           summary,219.20,msec,cpu-clock,219322251,100.00,20.025,CPUs utilized
           summary,144,,context-switches,219241902,100.00,656.935,/sec
           summary,38,,cpu-migrations,219173705,100.00,173.358,/sec
           summary,61,,page-faults,219093635,100.00,278.285,/sec
           summary,10679310,,cycles,218746228,100.00,0.049,GHz
           summary,6288296,,instructions,218589869,100.00,0.59,insn per cycle
           summary,1386904,,branches,218428851,100.00,6.327,M/sec
           summary,56863,,branch-misses,218219951,100.00,4.10,of all branches

After:

  0.001148449,224.75,msec,cpu-clock,224870589,100.00,224.747,CPUs utilized
  0.001148449,176,,context-switches,224775564,100.00,783.103,/sec
  0.001148449,38,,cpu-migrations,224707428,100.00,169.079,/sec
  0.001148449,61,,page-faults,224629326,100.00,271.416,/sec
  0.001148449,12172071,,cycles,224266368,100.00,0.054,GHz
  0.001148449,6901907,,instructions,224108764,100.00,0.57,insn per cycle
  0.001148449,1515655,,branches,223946693,100.00,6.744,M/sec
  0.001148449,70027,,branch-misses,223735385,100.00,4.62,of all branches
  summary,224.75,msec,cpu-clock,224870589,100.00,21.066,CPUs utilized
  summary,176,,context-switches,224775564,100.00,783.103,/sec
  summary,38,,cpu-migrations,224707428,100.00,169.079,/sec
  summary,61,,page-faults,224629326,100.00,271.416,/sec
  summary,12172071,,cycles,224266368,100.00,0.054,GHz
  summary,6901907,,instructions,224108764,100.00,0.57,insn per cycle
  summary,1515655,,branches,223946693,100.00,6.744,M/sec
  summary,70027,,branch-misses,223735385,100.00,4.62,of all branches

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221123180208.2068936-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim
2022-11-23 10:01:56 -08:00
committed by Arnaldo Carvalho de Melo
parent 6d74ed369d
commit 8e55ae24c0
1 changed files with 6 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
tools/perf/util/stat-display.c
View File

@@ -828,7 +828,7 @@ static void print_counter_aggrdata(struct perf_stat_config *config,
fprintf(output, "%s", prefix);
else if (config->summary && config->csv_output &&
!config->no_csv_summary && !config->interval)
fprintf(output, "%16s%s", "summary", config->csv_sep);
fprintf(output, "%s%s", "summary", config->csv_sep);
}
uval = val * counter->scale;
@@ -1078,9 +1078,12 @@ static void prepare_interval(struct perf_stat_config *config,
if (config->iostat_run)
return;
if (!config->json_output)
sprintf(prefix, "%6lu.%09lu%s", (unsigned long) ts->tv_sec,
if (config->csv_output)
sprintf(prefix, "%lu.%09lu%s", (unsigned long) ts->tv_sec,
ts->tv_nsec, config->csv_sep);
else if (!config->json_output)
sprintf(prefix, "%6lu.%09lu ", (unsigned long) ts->tv_sec,
ts->tv_nsec);
else if (!config->metric_only)
sprintf(prefix, "{\"interval\" : %lu.%09lu, ", (unsigned long)
ts->tv_sec, ts->tv_nsec);