https://bugs.freedesktop.org/show_bug.cgi?id=105171

--- Comment #4 from Clemens Eisserer <linuxhi...@gmail.com> ---
just some unrelated, interesting numbers:

Sync time adjustment is 0.0355 msecs.
    8000000 reps @   0.0012 msec (816000.0/sec): ShmPutImage 10x10 square
    8000000 reps @   0.0012 msec (818000.0/sec): ShmPutImage 10x10 square

These are the results achieved by a Geforce-8800GTS (11 years old dGPU) using
the proprietary driver in the same system.

Confirms my subjective experience - the glamor based open-source driver stack
is really slow for some operations. It seems the proprietary nvidia driver has
way lower driver overhead (considering the 10x10 putimage won't saturate the
GPU).

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