On Sat, 15 Jan 2011 11:34:31 +0100, Paolo Ornati <orn...@gmail.com> wrote: > On Wed, 8 Dec 2010 16:24:35 +0000 > Chris Wilson <ch...@chris-wilson.co.uk> wrote: > > > This is just a preliminary attempt to see if this even helps. Obviously > > some more effort will need to be spent investigating a better choice of > > latency and when we need to request it, but first: does this help? > > Sorry for the very long delay... it seems I've latency problems too ;) > > As for Andrew's comment it looks I need a recent kernel to actually > test this patch: > > "Do you have the 2.6.36.2 candidate patch that fixes pm_qos in? From > the description, it looks like pm_qos doesn't work at all without it." > > The "problem" is that I cannot reproduce it with 2.6.37 (tested > yesterday for 8+ hours), but maybe it's just hidden by some coincidence.
Check with powertop to see if anything is preventing low C-states. It would be great if it just magically fixed itself... -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
