Em Tue, Jan 05, 2016 at 10:09:10PM +0100, Jiri Olsa escreveu: > If no script is specified for stat data, display > stat events in raw form. > > $ perf stat record ls > > SNIP > > Performance counter stats for 'ls': > > 0.851585 task-clock (msec) # 0.717 CPUs utilized > 0 context-switches # 0.000 K/sec > 0 cpu-migrations # 0.000 K/sec > 114 page-faults # 0.134 M/sec > 2,620,918 cycles # 3.078 GHz > <not supported> stalled-cycles-frontend > <not supported> stalled-cycles-backend > 2,714,111 instructions # 1.04 insns per cycle > 542,434 branches # 636.970 M/sec > 15,946 branch-misses # 2.94% of all branches > > 0.001186954 seconds time elapsed > > $ perf script > CPU THREAD VAL ENA RUN > TIME EVENT > -1 26185 851585 851585 851585 > 1186954 task-clock > -1 26185 0 851585 851585 > 1186954 context-switches > -1 26185 0 851585 851585 > 1186954 cpu-migrations > -1 26185 114 851585 851585 > 1186954 page-faults > -1 26185 2620918 853340 853340 > 1186954 cycles > -1 26185 0 0 0 > 1186954 stalled-cycles-frontend > -1 26185 0 0 0 > 1186954 stalled-cycles-backend > -1 26185 2714111 853340 853340 > 1186954 instructions > -1 26185 542434 853340 853340 > 1186954 branches > -1 26185 15946 853340 853340 > 1186954 branch-misses > > Tested-by: Kan Liang <kan.li...@intel.com>
The CPU field is getting misformatted: [acme@zoo linux]$ [acme@zoo linux]$ perf stat record usleep 1 Performance counter stats for 'usleep 1': 0.356474 task-clock (msec) # 0.516 CPUs utilized 1 context-switches # 0.003 M/sec 0 cpu-migrations # 0.000 K/sec 54 page-faults # 0.151 M/sec 1,044,123 cycles # 2.929 GHz 716,911 stalled-cycles-frontend # 68.66% frontend cycles idle <not supported> stalled-cycles-backend 694,609 instructions # 0.67 insns per cycle # 1.03 stalled cycles per insn 140,037 branches # 392.839 M/sec 7,920 branch-misses # 5.66% of all branches 0.000690200 seconds time elapsed [acme@zoo linux]$ [acme@zoo linux]$ perf script CPU THREAD VAL ENA RUN TIME EVENT 65535 4883 356474 356474 356474 690200 task-clock 65535 4883 1 356474 356474 690200 context-switches 65535 4883 0 356474 356474 690200 cpu-migrations 65535 4883 54 356474 356474 690200 page-faults 65535 4883 1044123 360329 360329 690200 cycles 65535 4883 716911 360329 360329 690200 stalled-cycles-frontend 65535 4883 0 0 0 690200 stalled-cycles-backend 65535 4883 694609 360329 360329 690200 instructions 65535 4883 140037 360329 360329 690200 branches 65535 4883 7920 360329 360329 690200 branch-misses [acme@zoo linux]$ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/