On 6/10/15 12:10 PM, Jiri Olsa wrote:
Currently all the -p option PID arguments tasks values get aggregated and printed as single values.Adding --per-tasks option to print values per task. $ perf stat -e cycles,instructions --per-task -p 12451,16173 ^C Performance counter stats for process id '12451,16173': TASK-12451 77,784 cycles TASK-16173 64,809 cycles TASK-12451 14,432 instructions TASK-16173 14,452 instructions 3.854957122 seconds time elapsed Also woks under interval mode: $ ./perf stat -e cycles,instructions --per-task -p 16431,16173 -I 1000 # time task counts unit events 1.000085816 TASK-16173 0 cycles 1.000085816 TASK-16431 3,358,360,926 cycles 1.000085816 TASK-16173 0 instructions 1.000085816 TASK-16431 9,062,422,086 instructions 2.000212262 TASK-16173 65,386 cycles 2.000212262 TASK-16431 3,349,355,309 cycles 2.000212262 TASK-16173 12,151 instructions 2.000212262 TASK-16431 9,039,401,422 instructions 3.000333402 TASK-16173 62,797 cycles 3.000333402 TASK-16431 3,357,140,183 cycles 3.000333402 TASK-16173 12,208 instructions 3.000333402 TASK-16431 9,058,080,762 instructions ^C 3.375949851 TASK-16173 0 cycles 3.375949851 TASK-16431 1,264,764,804 cycles 3.375949851 TASK-16173 0 instructions 3.375949851 TASK-16431 3,414,532,317 instructions
Why not print $comm-$pid versus TASK-$pid? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
