[Bug 39202] FPS - KDE desktop effects with 3.0 rc6 kernel

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Aug 18 05:04:30 PDT 2011


https://bugs.freedesktop.org/show_bug.cgi?id=39202

--- Comment #29 from Siganderson <dj_def at webmail.it> 2011-08-18 05:04:29 PDT ---
and this is the last attempt, when I booted a newer kernel:

cat /var/log/Xorg.0.log | grep Pageflipping
[    37.812] (II) RADEON(0): KMS Pageflipping: disabled
cat /var/log/Xorg.0.log | grep SwapBuffers
[    37.812] (II) RADEON(0): SwapBuffers wait for vsync: disabled

glxgears
Running synchronized to the vertical refresh.  The framerate should be
approximately the same as the monitor refresh rate.
301 frames in 5.0 seconds = 60.112 FPS
300 frames in 5.0 seconds = 59.986 FPS


vblank_mode=0 glxgears
ATTENTION: default value of option vblank_mode overridden by environment.
ATTENTION: default value of option vblank_mode overridden by environment.
16145 frames in 5.0 seconds = 3228.899 FPS
15667 frames in 5.0 seconds = 3133.278 FPS

then I set the vsync to off in kde desktop effects settings:

glxgears
Running synchronized to the vertical refresh.  The framerate should be
approximately the same as the monitor refresh rate.
301 frames in 5.0 seconds = 60.072 FPS
301 frames in 5.0 seconds = 60.015 FPS

vblank_mode=0 glxgears
ATTENTION: default value of option vblank_mode overridden by environment.
ATTENTION: default value of option vblank_mode overridden by environment.
14340 frames in 5.0 seconds = 2867.876 FPS
14858 frames in 5.0 seconds = 2971.596 FPS

doing vblank_mode=0 kwin --replace has the same effect than setting off vsync
in kde desktop effects settings

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