On Tue, 2010-05-11 at 22:31 -0400, Martin Langhoff wrote: > On Tue, May 11, 2010 at 8:59 PM, John Gilmore <g...@toad.com> wrote: > >> > just fix the kernel so the suspend > >> > ends when the next process wants to run. > >> > >> Have a look at powertop -- you'll never suspend, there are several > >> hundred wakeups per second. > > > > Did we give up on fixing these? > > No, and as Ben mentions, it gets better gradually.
So for the record, I am actually making the much stronger claim that _we are already there_. Thanks to work done over the last few years, Sugar is free of polling and ready for principled kernel-based aggressive suspend. Only a few other components generate wakeups in recent builds, amounting to less than one wakeup a second. I predict they will be easy to fix, and are now polling only because there's no incentive to do otherwise. Thanks to much work by Richard Smith, we also have reliable wakeup timers from the EC. All that remains, then, is to write the cpuidle driver that integrates correctly with EC and DCON. Compared to the software OLPC has accomplished so far, this is really a small job. It's simply never been assigned, and no one has volunteered. --Ben _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
