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Bug#483424: marked as done ([Juliusz Chroboczek] EXA and MigrationHeuristic)

Your message dated Sun, 1 Feb 2009 21:17:46 +0100
with message-id <20090201201746.GA9588@loulous.org>
and subject line Re: Bug#483424: [Juliusz Chroboczek] EXA and MigrationHeuristic
has caused the Debian Bug report #483424,
regarding [Juliusz Chroboczek] EXA and MigrationHeuristic
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
483424: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=483424
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: xserver-xorg
Version: 1:7.3+10

Forwarding this to bugs@, just to make sure Julien is sufficiently
annoyed to do something about it.

                                        Juliusz
--- Begin Message --- 
Dear all,

After my recent adventures with Radeon, XAA and EXA, I've come to the
conclusion that setting MigrationHeuristic to greedy drastically helps
performance of Firefox redraws on both Radeon and i965GM hardware.

By drastically, I mean it -- a redraw of a full-screen Firefox goes
from 3 to 5 seconds (!) down to a fraction of a second.

Now I haven't read the sources of Firefox (let him who has cast me the
first stone), but I believe that Firefox performs client-side backing
store using absolutely humonguous pixmaps.  While we may argue that
what Firefox does is stupid, I think we should try to support this
kind of usage.

Isn't the default value of MigrationHeuristic incorrect ?  Should we
switch to greedy as default ?  (Julien tells me that he believes that
Ubuntu have already made the switch.)

                                        Juliusz
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--- End Message ---

--- End Message ---
--- Begin Message --- 
Version: 2:1.5.99.901-1

>From what I understand, this does not matter anymore with
recent Xservers where EXA works very well by default.
So I am marking as fixed in experimental.

Brice

--- End Message ---
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