Leopard performance penalty (3x slower), NSPopAutoreleasePool
Leopard performance penalty (3x slower), NSPopAutoreleasePool
- Subject: Leopard performance penalty (3x slower), NSPopAutoreleasePool
- From: Gerd Knops <email@hidden>
- Date: Sat, 17 Nov 2007 12:53:57 -0600
I have a complex Cocoa application, 10.4 SDK (no GC etc). Loading a
document (and performing a large number of calculations triggered by
that) takes 4 seconds under Tiger.
Under Leopard, loading the same document takes 8 seconds until it
displays, after which the application is unresponsive for another 4
seconds, the entire time being spent in NSPopAutoreleasePool.
I presume that performance penalty is largely due to Leopards more
complex memory handling. Has anybody else observed this, and knows of
any strategies to minimize that overhead?
Thanks
Gerd
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