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

From: David Brownell
Date: Sun Feb 03 2008 - 17:42:34 EST


> > 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.)

- Dave

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