PM / tools: new tool for suspend/resume performance optimization

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This tool is designed to assist kernel and OS developers in optimizing
their linux stack's suspend/resume time. Using a kernel image built with a
few extra options enabled, the tool will execute a suspend and will
capture dmesg and ftrace data until resume is complete. This data is
transformed into a device timeline and a callgraph to give a quick and
detailed view of which devices and callbacks are taking the most time in
suspend/resume. The output is a single html file which can be viewed in
firefox or chrome.

References: https://01.org/suspendresume
Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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Todd E Brandt

2014-01-16 16:18:22 -08:00

committed by Rafael J. Wysocki

parent fdfe840e48

commit ee8b09cd60

1 changed files with 1446 additions and 0 deletions

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scripts/analyze_suspend.py

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