[Bug 38800] glXSwapBuffersMscOML is slow on AMD Fusion but not on Intel 945 w/Atom

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=38800

--- Comment #39 from Simon Farnsworth <simon.farnsworth at onelan.co.uk> 2011-07-08 02:41:15 PDT ---
(In reply to comment #37)
> Maybe we should try and sort out why there is so much latency in the interrupt
> handler for Simon rather than rewriting the entire thing.  Or we could just use
> the pflip interrupts where they are working and use the existing code on older
> asics.

I'm going to sprinkle DRM_DEBUGs in the IRQ handling path, see if I can find a
smoking gun for latency, or if it's just lots of little things building up.

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