https://bugs.freedesktop.org/show_bug.cgi?id=30025
Summary: r600 kms, massave slowdown with latest drm-radeon-testing Product: DRI Version: XOrg CVS Platform: x86-64 (AMD64) OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/Radeon AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: chainsawbike@gmail.com
ive bisected to this commit: http://git.kernel.org/?p=linux/kernel/git/airlied/drm-2.6.git;a=commitdiff;h...
odd thing i noted: if i run compiz with vblank_mode=0 and run glxgears it reports a frame-rate of about 1500 fps ( being the same as i get when running the previous revision kernel) but its still looks as slow as molasses if i unset vblank_mode then run it it reports about 5 fps but looks the same as before
https://bugs.freedesktop.org/show_bug.cgi?id=30025
--- Comment #1 from Tobias Jakobi liquid.acid@gmx.net 2010-09-05 04:06:47 PDT --- I think this one is well knows, have you tried disabling writeback with no_wb=1 as radeon module parameter?
Also note that gears is _not_ a benchmark.
https://bugs.freedesktop.org/show_bug.cgi?id=30025
--- Comment #2 from aaron chainsawbike@gmail.com 2010-09-05 05:05:55 PDT --- yep passing radeon.no_wb=1 to the kernel fixes it
@glxgears i kinda expected that but i don't think im using it for one... im just trying to show the difference between reported and apparent frame-rate in certain situations - it just seems odd...
https://bugs.freedesktop.org/show_bug.cgi?id=30025
Andy Furniss lists@andyfurniss.entadsl.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |DUPLICATE
--- Comment #3 from Andy Furniss lists@andyfurniss.entadsl.com 2010-09-05 05:33:47 PDT --- More info + patch in
https://bugs.freedesktop.org/show_bug.cgi?id=29972
*** This bug has been marked as a duplicate of bug 29972 ***
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