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| author |   Paul A. Clarke <pc@us.ibm.com> | 2020-05-07 09:18:07 -0500 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-05-28 10:03:25 -0300 |
| commit | d4d5ca0baac3de82c00ebc7677ee84537c31ba3c (patch) | |
| tree | c68f280942bf1d2e582e2baaf1c76a3928cdf4ec /tools/perf/util/stat-shadow.c | |
| parent | perf expr: Print a debug message for division by zero (diff) | |
| download | linux-dev-d4d5ca0baac3de82c00ebc7677ee84537c31ba3c.tar.xz linux-dev-d4d5ca0baac3de82c00ebc7677ee84537c31ba3c.zip | |
perf stat: Increase perf metric output resolution
Add another digit of precision to the perf metrics output.
Before:
$ /usr/bin/perf stat --metrics run_cpi /bin/ls
[...]
4,345,526 pm_run_cyc # 1.1 run_cpi
3,818,069 pm_run_inst_cmpl
[...]
$ /usr/bin/perf stat --metrics run_cpi --metric-only /bin/ls
[...]
run_cpi
1.1
[...]
After:
$ perf stat --metrics run_cpi /bin/ls
[...]
4,280,882 pm_run_cyc # 1.12 run_cpi
3,817,016 pm_run_inst_cmpl
[...]
$ perf stat --metrics run_cpi --metric-only /bin/ls
[...]
run_cpi
1.06
[...]
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Paul Clarke <pc@us.ibm.com>
LPU-Reference: 1588861087-31280-1-git-send-email-pc@us.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/stat-shadow.c')
| -rw-r--r-- | tools/perf/util/stat-shadow.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c index 129b8c5f2538..9bd7a8d2a858 100644 --- a/tools/perf/util/stat-shadow.c +++ b/tools/perf/util/stat-shadow.c @@ -797,7 +797,7 @@ static void generic_metric(struct perf_stat_config *config, print_metric(config, ctxp, NULL, "%8.1f", metric_bf, ratio); } else { - print_metric(config, ctxp, NULL, "%8.1f", + print_metric(config, ctxp, NULL, "%8.2f", metric_name ? metric_name : out->force_header ? name : "", |