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>
1 file changed