projects / mirror_ubuntu-hirsute-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 9fbc04f2 | 1 | perf-bench(1) |
| 4778e0e8 | 2 | ============= |
| 9fbc04f2 HM |
3 | |
| 4 | NAME | |
| 5 | ---- | |
| 6 | perf-bench - General framework for benchmark suites | |
| 7 | ||
| 8 | SYNOPSIS | |
| 9 | -------- | |
| 10 | [verse] | |
| 11 | 'perf bench' [<common options>] <subsystem> <suite> [<options>] | |
| 12 | ||
| 13 | DESCRIPTION | |
| 14 | ----------- | |
| 15 | This 'perf bench' command is general framework for benchmark suites. | |
| 16 | ||
| 17 | COMMON OPTIONS | |
| 18 | -------------- | |
| 19 | -f:: | |
| 20 | --format=:: | |
| 21 | Specify format style. | |
| 854c5548 | 22 | Current available format styles are: |
| 9fbc04f2 HM |
23 | |
| 24 | 'default':: | |
| 25 | Default style. This is mainly for human reading. | |
| 26 | --------------------- | |
| 854c5548 | 27 | % perf bench sched pipe # with no style specified |
| 9fbc04f2 HM |
28 | (executing 1000000 pipe operations between two tasks) |
| 29 | Total time:5.855 sec | |
| 30 | 5.855061 usecs/op | |
| 31 | 170792 ops/sec | |
| 32 | --------------------- | |
| 33 | ||
| 34 | 'simple':: | |
| 35 | This simple style is friendly for automated | |
| 36 | processing by scripts. | |
| 37 | --------------------- | |
| 38 | % perf bench --format=simple sched pipe # specified simple | |
| 39 | 5.988 | |
| 40 | --------------------- | |
| 41 | ||
| 42 | SUBSYSTEM | |
| 43 | --------- | |
| 44 | ||
| 45 | 'sched':: | |
| 46 | Scheduler and IPC mechanisms. | |
| 47 | ||
| 48 | SUITES FOR 'sched' | |
| 49 | ~~~~~~~~~~~~~~~~~~ | |
| 50 | *messaging*:: | |
| 51 | Suite for evaluating performance of scheduler and IPC mechanisms. | |
| 52 | Based on hackbench by Rusty Russell. | |
| 53 | ||
| 54 | Options of *pipe* | |
| 55 | ^^^^^^^^^^^^^^^^^ | |
| 56 | -p:: | |
| 57 | --pipe:: | |
| 58 | Use pipe() instead of socketpair() | |
| 59 | ||
| 60 | -t:: | |
| 61 | --thread:: | |
| 62 | Be multi thread instead of multi process | |
| 63 | ||
| 64 | -g:: | |
| 65 | --group=:: | |
| 66 | Specify number of groups | |
| 67 | ||
| 68 | -l:: | |
| 69 | --loop=:: | |
| 70 | Specify number of loops | |
| 71 | ||
| 72 | Example of *messaging* | |
| 73 | ^^^^^^^^^^^^^^^^^^^^^^ | |
| 74 | ||
| 75 | --------------------- | |
| 76 | % perf bench sched messaging # run with default | |
| 77 | options (20 sender and receiver processes per group) | |
| 78 | (10 groups == 400 processes run) | |
| 79 | ||
| 80 | Total time:0.308 sec | |
| 81 | ||
| 854c5548 | 82 | % perf bench sched messaging -t -g 20 # be multi-thread, with 20 groups |
| 9fbc04f2 HM |
83 | (20 sender and receiver threads per group) |
| 84 | (20 groups == 800 threads run) | |
| 85 | ||
| 86 | Total time:0.582 sec | |
| 87 | --------------------- | |
| 88 | ||
| 89 | *pipe*:: | |
| 90 | Suite for pipe() system call. | |
| 91 | Based on pipe-test-1m.c by Ingo Molnar. | |
| 92 | ||
| 93 | Options of *pipe* | |
| 94 | ^^^^^^^^^^^^^^^^^ | |
| 95 | -l:: | |
| 96 | --loop=:: | |
| 97 | Specify number of loops. | |
| 98 | ||
| 99 | Example of *pipe* | |
| 100 | ^^^^^^^^^^^^^^^^^ | |
| 101 | ||
| 102 | --------------------- | |
| 103 | % perf bench sched pipe | |
| 104 | (executing 1000000 pipe operations between two tasks) | |
| 105 | ||
| 106 | Total time:8.091 sec | |
| 107 | 8.091833 usecs/op | |
| 108 | 123581 ops/sec | |
| 109 | ||
| 110 | % perf bench sched pipe -l 1000 # loop 1000 | |
| 111 | (executing 1000 pipe operations between two tasks) | |
| 112 | ||
| 113 | Total time:0.016 sec | |
| 114 | 16.948000 usecs/op | |
| 115 | 59004 ops/sec | |
| 116 | --------------------- | |
| 117 | ||
| 118 | SEE ALSO | |
| 119 | -------- | |
| 120 | linkperf:perf[1] |