1perf-bench(1)
2=============
3
4NAME
5----
6perf-bench - General framework for benchmark suites
7
8SYNOPSIS
9--------
10[verse]
11'perf bench' [<common options>] <subsystem> <suite> [<options>]
12
13DESCRIPTION
14-----------
15This 'perf bench' command is general framework for benchmark suites.
16
17COMMON OPTIONS
18--------------
19-f::
20--format=::
21Specify format style.
22Current available format styles are:
23
24'default'::
25Default style. This is mainly for human reading.
26---------------------
27% perf bench sched pipe                      # with no style specified
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'::
35This simple style is friendly for automated
36processing by scripts.
37---------------------
38% perf bench --format=simple sched pipe      # specified simple
395.988
40---------------------
41
42SUBSYSTEM
43---------
44
45'sched'::
46	Scheduler and IPC mechanisms.
47
48SUITES FOR 'sched'
49~~~~~~~~~~~~~~~~~~
50*messaging*::
51Suite for evaluating performance of scheduler and IPC mechanisms.
52Based on hackbench by Rusty Russell.
53
54Options of *pipe*
55^^^^^^^^^^^^^^^^^
56-p::
57--pipe::
58Use pipe() instead of socketpair()
59
60-t::
61--thread::
62Be multi thread instead of multi process
63
64-g::
65--group=::
66Specify number of groups
67
68-l::
69--loop=::
70Specify number of loops
71
72Example of *messaging*
73^^^^^^^^^^^^^^^^^^^^^^
74
75---------------------
76% perf bench sched messaging                 # run with default
77options (20 sender and receiver processes per group)
78(10 groups == 400 processes run)
79
80      Total time:0.308 sec
81
82% perf bench sched messaging -t -g 20        # be multi-thread, with 20 groups
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*::
90Suite for pipe() system call.
91Based on pipe-test-1m.c by Ingo Molnar.
92
93Options of *pipe*
94^^^^^^^^^^^^^^^^^
95-l::
96--loop=::
97Specify number of loops.
98
99Example 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
118SEE ALSO
119--------
120linkperf:perf[1]
121