Returning to this, just upgraded to 10.6.3 Mac Book Pro 2.33 Ghz hits the first Checkers at 30fps and iteratorTest at 2.4ish.
Seems 10.6.3 brings no Iterator fix? Is there any word on fixes for QC ? On Nov 4, 2009, at 2:48 PM, Christopher Wright wrote: > <puts on asbestos suit ;)> > I'm finding a lot of cases where iterator performance in QC4 is dramatically > worse than in QC3 (typically about half as fast). > > <Checkers.qtz> (this does a 50x50 grid, with half the sprites disabled, so > it's 2500/2 = 1250 sprites per frame -- MacBook can render this at 60fps in > Leopard, MacBook Pro is struggling to hit 30fps in Snow Leopard.) > > <iteratorTest.qtz> (this one's iteration count is cranked up really high, but > it's still ~5fps on my MacBook 1.83GHzGMA950 running 10.5.8, and only > 2.2-2.5fps on my MacBook Pro 2.4GHz 8600M GT running 10.6.x (the MacBook on > Snow Leopard also hits about 2.5fps, so the same machine is half as fast in > iterators). Turning down the iteration count makes it scale up, with 10.5 > always running about 2x as fast as 10.6). > > Is this expected? Does anyone else experience this kind of performance? Are > there cases where iterators are actually faster (or at least as fast) on Snow > Leopard? I'm only seeing a few cases where having all consumer subpatches > get disabled causes snow leopard's iterator to skip work (unlike leopard's). > Should I file a bug for this? > > -- > [ christopher wright ] > [email protected] > http://kineme.net/ > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Quartzcomposer-dev mailing list ([email protected]) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/quartzcomposer-dev/doktorp%40mac.com > > This email sent to [email protected] _______________________________________________ Do not post admin requests to the list. They will be ignored. Quartzcomposer-dev mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/quartzcomposer-dev/archive%40mail-archive.com This email sent to [email protected]
