From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@freedesktop.org
Subject: [Bug 29972] New: d-r-t  /r6xx+: use new style fencing (v2) causes
	very poor gl perf.
Date: Thu,  2 Sep 2010 06:02:09 -0700 (PDT)
Message-ID: <bug-29972-502@http.bugs.freedesktop.org/>
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https://bugs.freedesktop.org/show_bug.cgi?id=29972

           Summary: d-r-t  /r6xx+: use new style fencing (v2) causes very
                    poor gl perf.
           Product: Mesa
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/R600
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: lists@andyfurniss.entadsl.com


rv790 PCIE, current git ddx, mesa from yesterday.

Just tried today's updated d-r-t and 
/r6xx+: use new style fencing (v2)
is causing very poor gl perf eg. 1 fps in mesa demo tunnel, some demos appear
OK at first but even though they reach refresh rate they glitch for a second
after a while.

exa is also affected - it's slower drawing than the "instant" speed I am used
to eg when switching between metacity workspaces. Seamonkey scrolling with a
page with images is glitchy.

Tiling on/off makes no difference, with without last ddx commit makes no
difference.

git reset --hard d-r-t to the commit before this one is working OK.

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