1.4 -> 1.5.1 performance regressions

Adam Jackson ajax at nwnk.net
Thu Oct 9 07:36:24 PDT 2008

On Thu, 2008-10-09 at 11:14 +0200, Michel Dänzer wrote:
> 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.

Yeah, but I'm unlikely to actually include it in 1.5.2.  It looks like
it's enough of a change from the 1.5.0 devprivate semantics to be
considered an ABI change.

- ajax
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