<html>
<head>
<base href="https://bugs.freedesktop.org/" />
</head>
<body>
<p>
<div>
<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [radeonsi] KDE 4.11 is EXTREMELY slow with Raster QT backend"
href="https://bugs.freedesktop.org/show_bug.cgi?id=69341#c32">Comment # 32</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [radeonsi] KDE 4.11 is EXTREMELY slow with Raster QT backend"
href="https://bugs.freedesktop.org/show_bug.cgi?id=69341">bug 69341</a>
from <span class="vcard"><a class="email" href="mailto:god@politeia.in" title="Denis M. (Phr33d0m) <god@politeia.in>"> <span class="fn">Denis M. (Phr33d0m)</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=69341#c28">comment #28</a>)
<span class="quote">> Using perf, I noticed it spent all of its
> time in a memcpy, and using gdb I found it was copying memory between
> textures in glamor.</span >
With latest kernel 3.12.0, mesa 9.2.2 and ati 7.2 color corruption mostly
disappeared with the Native KDE backend and OpenGL 2.0 selected.
Although, every couple of seconds (every ~2-3 sec) my desktop lags for a
moment, using `perf top` I see:
45.08% [kernel] [k] radeon_vm_bo_set_addr
which stays like that all the time. The desktop is pretty much usable, but
watching a HD movie is almost impossible with all that lagging every few
seconds.
<span class="quote">> I'm using Gentoo with an HD7970.</span >
Gentoo + HD7870 here.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>