Re: [PATCH 0/2] perf stat: Support overall statistics for interval mode
On 5/1/2020 7:36 PM, Jiri Olsa wrote: 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 1.000389902420,226 instructions #0.27 insn per cycle 2.001433453 2,213,952 cycles 2.001433453735,465 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 1.000435121905,303 inst_retired.any # 2.9 CPI 1.000435121 2,663,333 cycles 1.000435121914,702 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 Oh, yes, it couldn't be applied on perf/core. I've rebased it. Thanks Jin Yao 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
Re: [PATCH 0/2] perf stat: Support overall statistics for interval mode
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 > 1.000389902420,226 instructions #0.27 > insn per cycle > 2.001433453 2,213,952 cycles > 2.001433453735,465 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 > 1.000435121905,303 inst_retired.any # > 2.9 CPI > 1.000435121 2,663,333 cycles > 1.000435121914,702 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 >
