[Bug 98239] saints row 3: performance is limited by flushes - bugzilla-daemon

From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 98239] saints row 3: performance is limited by flushes
Date: Thu, 13 Oct 2016 21:59:44 +0000	[thread overview]
Message-ID: <bug-98239-502@http.bugs.freedesktop.org/> (raw)

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https://bugs.freedesktop.org/show_bug.cgi?id=98239

            Bug ID: 98239
           Summary: saints row 3: performance is limited by flushes
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: aaalmosss@gmail.com
        QA Contact: dri-devel@lists.freedesktop.org

Created attachment 127280
  --> https://bugs.freedesktop.org/attachment.cgi?id=127280&action=edit
sr3 flush.png

Performance is quite poor, while the gpu load is very low. The attached
screenshot shows that gpu load is proportional to fps, and their pattern is the
opposite of the amount of flushes. In typical scenes fps can barely reach 30
while gpu load is around 40% and cpu load is at 60% all the time. I turned off
all special effects for this screenshot to show that this only depends on the
scene complexity. In fact turning on all the effects don't affect performance
much, because the gpu and the cpu are barely loaded.

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