power/pm-graph/sleepgraph.8

3 sleepgraph \- Suspend/Resume timing analysis
11 in optimizing their linux stack's suspend/resume time. Using a kernel
13 suspend and capture dmesg and ftrace data until resume is complete.
16 taking the most time in suspend/resume.
19 a suspend/resume.
21 Generates output files in subdirectory: suspend-yymmdd-HHMMSS
40 Mode to initiate for suspend e.g. standby, freeze, mem (default: mem).
46 e.g. suspend-{hostname}-{date}-{time}
58 will execute the suspend via turbostat and collect data in the timeline log.
69 During test, enable/disable runtime suspend for all devices. The test is delayed
70 by 5 seconds to allow runtime suspend changes to occur. The settings are restored
73 \fB-display \fIon/off/standby/suspend\fR
92 Run the timeline over a custom suspend command, e.g. pm-suspend. By default
93 the tool forces suspend via /sys/power/state so this allows testing over
94 an OS's official suspend method. The output file will change to
95 hostname_command.html and will autodetect which suspend mode was triggered.
113 Run two suspend/resumes back to back (default: disabled).
119 Include \fIt\fR ms delay before 1st suspend (default: 0 ms).
129 The outputs will be created in a new subdirectory, for count: suspend-{date}-{time}-xN,
130 for duration: suspend-{date}-{time}-Nm. When the multitest run is done, the \fI-summary\fR
152 This option implies -f and creates a single callgraph covering all of suspend/resume.
201 suspend and resume times for you with highlights and links in the header.
213 List available suspend modes.
236 Print out the pm settings of all devices which support runtime suspend.
244 By default, the tool traces a list of important suspend/resume functions
261 Check which suspend modes are currently supported.
283 Execute a mem suspend with a 15 second wakeup. Include the logs in the html.
297 Execute a suspend & include dev mode source calls, limit callbacks to 5ms or larger.
305 Execute a suspend using a custom command.
325 Capture a full callgraph across all suspend, then filter the html by a single phase.