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| author | Todd E Brandt <todd.e.brandt@linux.intel.com> | 2014-01-16 16:18:22 -0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-01-17 01:47:26 +0100 |
| commit | ee8b09cd60bfe45d856e7c3bef8742835686bf4e (patch) | |
| tree | b24081a4e879a0b7a9872d262296cb55fc769469 /drivers/block/osdblk.c | |
| parent | fdfe840e480c56dc1119c31bb4fcc211b1b9b46f (diff) | |
| download | linux-ee8b09cd60bfe45d856e7c3bef8742835686bf4e.tar.gz linux-ee8b09cd60bfe45d856e7c3bef8742835686bf4e.tar.bz2 linux-ee8b09cd60bfe45d856e7c3bef8742835686bf4e.zip | |
PM / tools: new tool for suspend/resume performance optimization
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>
Diffstat (limited to 'drivers/block/osdblk.c')
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