[Pm-utils] Re: Better integration with power management scripts
hmacht at suse.de
Thu Apr 27 15:01:18 PDT 2006
On Fri 28. Apr - 07:58:11, Nigel Cunningham wrote:
> On Friday 28 April 2006 07:34, Holger Macht wrote:
> > On Thu 27. Apr - 22:23:13, Richard Hughes wrote:
> > > On Thu, 2006-04-27 at 17:15 -0400, David Zeuthen wrote:
> > > > hughsie, pjones, mjg59: Are you guys opposed to having a notifier
> > > > interface?
> > >
> > > No, but i don't think it will ever be used. mjg59 was bang on when he
> > > said that 99% of the time spent suspending is kernel side, and if
> > > anything is going to go *boom* then it will be that.
> > Not anymore. Since 2.6.17-rc1, where uswsusp came in, at least half is
> > done in userspace.
> That's not right.
> The real work, where things would go boom, is still done in the kernel (the
> atomic copy, bulk of the image preparation and writing the pages so on). The
> userspace program just contains the controlling logic and some code to
> possibly compress and/or encrypt the pages before handing them back to the
Of course, I just wanted to make clear that it's definitely not 99%, and
also not 90%.
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