perf/Documentation/perf-sched.txt

1 perf-sched(1)
5 ----
6 perf-sched - Tool to trace/measure scheduler properties (latencies)
9 --------
11 'perf sched' {record|latency|map|replay|script|timehist}
14 -----------
20   'perf sched latency' to report the per task scheduling latencies
30   of the workload as it occurred when it was recorded - and can repeat
33   'perf sched map' to print a textual context-switching outline of
35   individual CPUs, and the two-letter shortcuts stand for tasks that
42         perf sched record -- sleep 1
46    time (time between sched-out and next sched-in events for the task), the
47    task scheduling delay (time between wakeup and actually running) and run
52       -------------- ------  --------------------  ---------  ---------  ---------
64 -------
65 -i::
66 --input=<file>::
69 -v::
70 --verbose::
73 -D::
74 --dump-raw-trace=::
77 -f::
78 --force::
82 ----------------------------
84 --compact::
88 --cpus::
91 --color-cpus::
94 --color-pids::
98 ---------------------------------
99 -k::
100 --vmlinux=<file>::
103 --kallsyms=<file>::
106 -g::
107 --call-graph::
110 --max-stack::
113 -C=::
114 --cpu=::
117 -p=::
118 --pid=::
121 -t=::
122 --tid=::
125 -s::
126 --summary::
130 -S::
131 --with-summary::
135 --symfs=<directory>::
138 -V::
139 --cpu-visual::
143 -w::
144 --wakeups::
145 	Show wakeup events.
147 -M::
148 --migrations::
151 -n::
152 --next::
155 -I::
156 --idle-hist::
157 	Show idle-related events only.
159 --time::
166 --state::
170 --------
171 linkperf:perf-record[1]