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Re: Java on Leopard report

Subject: Re: Java on Leopard report
From: Joshua Smith <email@hidden>
Date: Mon, 29 Oct 2007 12:10:42 -0400
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The performance of 1.6 over 1.5 is much better, plus bug fixes (and probably some bug additions, too :-) )

Except when it's not. On Windows, we've noticed that some of the optimizations they made to the way synchronization works appear to be based on heuristic assumptions. The trouble with those optimizations is that if your code happens to be the opposite of the common case, you lose. We actually see lower performance in a few critical sections of our software in 1.6 (vs 1.5 and earlier) due to these changes.

-Joshua

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References:
	>Java on Leopard report (From: "Tony Bigbee" <email@hidden>)
	>Re: Java on Leopard report (From: Yong Hyeon Yoon <email@hidden>)
	>Re: Java on Leopard report (From: Scott Kovatch <email@hidden>)
	>Re: Java on Leopard report (From: Pratik Solanki <email@hidden>)
	>Re: Java on Leopard report (From: "Tony Bigbee" <email@hidden>)
	>Re: Java on Leopard report (From: Pratik Solanki <email@hidden>)
	>Re: Java on Leopard report (From: Tim Goeke <email@hidden>)
	>Re: Java on Leopard report (From: Bill Janssen <email@hidden>)
	>Re: Java on Leopard report (From: Bill Wagner <email@hidden>)

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