## page was renamed from Kernel/Reference/fwts/s3power
== Firmware Test Suite - s3power test ==

This test roughly determines how much power has been used by a laptop or netbook during suspend. The tests requires the user to unplug the machine from mains power and then it suspends the machine for a default of 10 minutes and then resumes and estimates how long the machine could stay suspended for.  However, this is just
a rough estimate as power is consumed doing the suspend and resume, hence more accurate results are achieved by
suspending for longer (for example multiples of hours). The --s3power-sleep-delay option can be used specify the sleep time (in seconds) to override the default 10 minute suspend time.

=== Example: ===

{{{
sudo fwts s3power - 
}}}

..runs the test on your machine and dumps the output to stdout.

{{{
sudo fwts s3power --s3power-sleep-delay=7200 -r suspend.log
}}}

..run the test and suspend for 2 hours, append the results to suspend.log

== Explanation of test results ==

Certain test results may require a little more explanation. This section will try and give some context to specific test failures.

||Error ID||Explanation||
||Bad``Wake``Alarm``S3``Power||Wakealarm does not work, cannot automatically wake the machine up during suspend.||
||Short``Suspend``Life``24hrs||System cannot remain suspended for 1 day||
||Short``Suspend``Life``36hrs||System cannot remain suspended for 1.5 days||
||Short``Suspend``Life``48hrs||System cannot remain suspended for 2 days||
||Short``Suspend||System failed to remain suspended for the time specified, perhaps it could not suspend and bounced back out of resume almost immediately because of a BIOS bug.||
||Long``Suspend||System was in suspend for longer than expected, perhaps the wakealarm fails to work during suspend.||
||PM``Action``Failed``Pre``S3||pm-suspend failed to suspend the machine and returned error 128.||
||PM``Action``Power``State``S3||pm-suspend failed to put the machine into the S3 (suspend) state and returned error 129.||
||PM``Action``Failed``S3||pm-suspend failed to suspend the machine and returned error 130.||