perf/Documentation/perf-sched.txt

1 perf-sched(1)
6 perf-sched - Tool to trace/measure scheduler properties (latencies)
11 'perf sched' {record|latency|map|replay|script|timehist}
15 There are several variants of 'perf sched':
17   'perf sched record <command>' to record the scheduling events
20   'perf sched latency' to report the per task scheduling latencies
23   'perf sched script' to see a detailed trace of the workload that
26   'perf sched replay' to simulate the workload that was recorded
27   via perf sched record. (this is done by starting up mockup threads
33   'perf sched map' to print a textual context-switching outline of
34   workload captured via perf sched record.  Columns stand for
39   'perf sched timehist' provides an analysis of scheduling events.
42         perf sched record -- sleep 1
43         perf sched timehist
46    time (time between sched-out and next sched-in events for the task), the
75         Display verbose dump of the sched data.
81 OPTIONS for 'perf sched map'
97 OPTIONS for 'perf sched timehist'
140 	Show visual aid for sched switches by CPU: 'i' marks idle time,