[Intel-gfx] high number of wakeups/second shown with 2.5 branch

Lukas Hejtmanek xhejtman at ics.muni.cz
Mon Oct 20 18:46:15 CEST 2008


On Mon, Oct 20, 2008 at 09:41:22AM -0700, Eric Anholt wrote:
> > Is there a specific reason for this behaviour with the 2.5 branch?
> 
> Without knowing your specific workload it's hard to tell if there's a
> problem or not, but we've replaced busy-waiting with using interrupts in
> the 2d driver.

I see similar symptoms in ordinary deskop. No GPU intensive application is
running and interrupts rate is fairly high.

If most of accelerated operations wait for IRQ, that could be the case, it's
a question whether we really need to sync so often..

-- 
Lukáš Hejtmánek



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