On Tue, 15 May 2001, Pavel Machek wrote:
>
> resume from disk is actually pretty hard to do in way it is readed linearily.
>
> While playing with swsusp patches (== suspend to disk) I found out that
> it was slow. It needs to do atomic snapshot, and only reasonable way to
> do that is free half of RAM, cli() and copy.
Note that "resume from disk" does _not_ have to necessarily resume kernel
data structures. It is enough if it just resumes the caches etc.
Don't get _too_ hung up about the power-management kind of "invisible
suspend/resume" sequence where you resume the whole kernel state.
Linus
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This archive was generated by hypermail 2b29 : Wed May 23 2001 - 21:00:34 EST