Re: suspend2 merge (was Re: [Suspend2-devel] Re: CFS and suspend2:hang in atomic copy)

From: Josh Triplett
Date: Thu Apr 26 2007 - 13:26:32 EST

Pavel Machek wrote:
>> For suspend to ram, in contrast, since you *know* that nobody will be
>> touching the hardware, and since the timings are very different anyway
>> (you'd hope that you can resume in a second or two), you'd generally want
>> to keep the DMA engine tables right where they are, and just literally
>> suspend the PCI chip itself.
> I'd actually prefer resume to be similar to module insert, too... Do
> you think that resume is _that_ time critical?

You cannot resume "too fast"; suspend to RAM should become so fast that you
use it without even thinking about it.

- Josh Triplett

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