Re: [linux-pm] sleepy linux self-test

["Rafael J. Wysocki" <rjw@sisk.pl>]

On Sunday, 3 of February 2008, David Brownell wrote:
> > > See the appended; it includes more of Ingo's suggestions.
> > > 
> > > Since this is increasingly unrelated to the "sleepy linux" concept
> > > (a version of what systems like OLPC, N700, and N800 are doing), I
> > > got rid of the "sleepy.c" file.
> >
> > The changes look good to me.
> 
> They feel unfinished to me though.  :)
> 
> Like using "jiffies" instead of a clocksource, which makes trouble
> since the timing covers periods with IRQs disabled.  And the test
> mode parameter needs work.
> 
> 
> > Well, it would be nice to have this feature in as soon as reasonably possible,
> > so that people can include suspend tests in the automated testing.
> 
> Except ... "rtcwake" (from util-linux-ng) already supports such
> testing, albeit from userspace.   But not the timing tests.
> 
> What was the rationale for wanting this done in-kernel?  (Other
> than to know it can work portably.)

Ingo wants it for automated testing not involving user space modifications.

Thanks,
Rafael