Quoting Mika Kuoppala (2018-08-13 13:49:43) > Chris Wilson <ch...@chris-wilson.co.uk> writes: > > > Quoting Chris Wilson (2018-07-12 12:57:29) > >> We require that we keep the list of outstanding work short so that we do > >> not "leak" memory while pageflipping under stress. However that system > >> stress may delay kernel workers virtually indefinitely, which incurs the > >> pageflips stall and eventually hit a timeout waiting for the cleanup. > >> > >> Try to combat CPU starvation of our short-lived cleanup workers by > >> switching to a high priority workqueue. > >> > >> Testcase: igt/kms_cursor_legacy/all-pipes-torture-move > >> References: https://bugs.freedesktop.org/show_bug.cgi?id=107122 > >> Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk> > >> Cc: Daniel Vetter <daniel.vet...@ffwll.ch> > >> --- > >> Not sure if highpri is enough to combat our RT torture... > > > > CI thinks it is. > > Not so familiar with the atomic commit. But it makes > sense and now there is evidence supporting it.
Proof is indeed in the pudding; the CI stress case is about the worst it can be so, with any luck the starvation issue is prevented. Thanks, pushed. -Chris _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
