[Bug 26892] New: Performance regression r600 in KMS vs UMS

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=26892

           Summary: Performance regression r600 in KMS vs UMS
           Product: xorg
           Version: unspecified
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: mblaesing at doppel-helix.eu
         QAContact: xorg-team at lists.x.org


Created an attachment (id=33768)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=33768)
gtkperf runs

Hello,

I'm running the xorg-edgers repository and noticed a very sluggish behaviour
under X11. The regression went away when running without KMS.

I did four gtkperf runs (see attachment) and the rendering time in KMS mode is
significantly higher than in the UMS case.

I'll also attach the Xorg-Logs from the UMS and KMS case.

Thanks

Matthias Bläsing


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