[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 #13 from Simon Farnsworth <simon.farnsworth at onelan.co.uk> 2011-07-05 05:24:19 PDT ---
Created an attachment (id=48768)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=48768)
drm.debug=0xf dmesg snippet, showing timings of page flips

PID 955 is Xorg, PID 1360 is my test program. Notice that everything blocks
after Xorg calls the pageflip ioctl until over 16ms have passed - as if we are
blocking in the pageflip unexpectedly.

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