[Bug 77436] KDE Konsole very slow scrolling with TearFree and QT graphics system native

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=77436

--- Comment #154 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to comment #152)
> KDE + TearFree
>  200000 trep @   0.1356 msec (  7380.0/sec): Copy 500x500 from window to
> window
>  200000 trep @   0.1356 msec (  7370.0/sec): Copy 500x500 from pixmap to
> window
>  200000 trep @   0.1357 msec (  7370.0/sec): Copy 500x500 from window to
> pixmap
>  400000 trep @   0.0878 msec ( 11400.0/sec): ShmPutImage 500x500 square
>  400000 trep @   0.0991 msec ( 10100.0/sec): ShmGetImage 500x500 square      

Your memory is much higher performance than mine! Yours is running at dual
channel compared to the single channel here, so is roughly 2 faster.

So your CPU is faster, your memory is faster, but your EU are slower... Odd.

Can you run xf86-video-intel/tests/lowlevel-blt-bench? Despite its name that
should exercise the EU.

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