On Thu, Apr 30, 2020 at 11:07:38AM +0800, Jin Yao wrote: > Currently perf-stat supports to print counts at regular interval (-I), > but it's not very easy for user to get the overall statistics. > > With this patchset, it supports to report the summary at the end of > interval output. > > For example, > > root@kbl-ppc:~# perf stat -e cycles -I1000 --interval-count 2 > # time counts unit events > 1.000412064 2,281,114 cycles > 2.001383658 2,547,880 cycles > > Performance counter stats for 'system wide': > > 4,828,994 cycles > > 2.002860349 seconds time elapsed > > root@kbl-ppc:~# perf stat -e cycles,instructions -I1000 --interval-count 2 > # time counts unit events > 1.000389902 1,536,093 cycles > 1.000389902 420,226 instructions # 0.27 > insn per cycle > 2.001433453 2,213,952 cycles > 2.001433453 735,465 instructions # 0.33 > insn per cycle > > Performance counter stats for 'system wide': > > 3,750,045 cycles > 1,155,691 instructions # 0.31 insn per cycle > > 2.003023361 seconds time elapsed > > root@kbl-ppc:~# perf stat -M CPI,IPC -I1000 --interval-count 2 > # time counts unit events > 1.000435121 905,303 inst_retired.any # > 2.9 CPI > 1.000435121 2,663,333 cycles > 1.000435121 914,702 inst_retired.any # > 0.3 IPC > 1.000435121 2,676,559 cpu_clk_unhalted.thread > 2.001615941 1,951,092 inst_retired.any # > 1.8 CPI > 2.001615941 3,551,357 cycles > 2.001615941 1,950,837 inst_retired.any # > 0.5 IPC > 2.001615941 3,551,044 cpu_clk_unhalted.thread > > Performance counter stats for 'system wide': > > 2,856,395 inst_retired.any # 2.2 CPI > 6,214,690 cycles > 2,865,539 inst_retired.any # 0.5 IPC > 6,227,603 cpu_clk_unhalted.thread > > 2.003403078 seconds time elapsed > > Jin Yao (2): > perf evsel: Create counts for collecting summary data > perf stat: Report summary for interval mode
good idea, but I can't apply this on latest Arnaldo's perf/core, could you please rebase? thanks, jirka > > tools/perf/builtin-stat.c | 14 ++++++- > tools/perf/util/evsel.c | 10 ++++- > tools/perf/util/evsel.h | 1 + > tools/perf/util/stat.c | 77 +++++++++++++++++++++++++++++++++++++++ > tools/perf/util/stat.h | 5 +++ > 5 files changed, 103 insertions(+), 4 deletions(-) > > -- > 2.17.1 >
