1.4 -> 1.5.1 performance regressions

[Fabio]

> On Thu, 2008-10-09 at 11:02 +0200, Fabio wrote:
> > 
> > I noticed some performance regression moving to a newer system with Xserver
> > 1.5.1 from an 1.4 system with both XAA and EXA.
> 
> Can you try current Git server-1.5-branch? Adam Jackson just backported
> the reduction of dixLookupPrivate() overhead, which is used extensively
> by the EXA core at least. If there are still regressions with EXA, I'd
> be interested in sysprof/oprofile data separately for each regressed
> case.

I can't update at the moment (I am using prebuilt packages from Ubuntu). Can you point the fix? I don't see it at:
http://cgit.freedesktop.org/xorg/xserver/log/?h=server-1.5-branch