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Re: JVM on G5

Subject: Re: JVM on G5
From: nikolaus heger <email@hidden>
Date: Thu, 01 Apr 2004 08:52:33 +0200

At 08:12 AM 3/31/2004 -0800, Shawn Erickson wrote:
>On Mar 31, 2004, at 5:33 AM, Carron, Kris wrote:
>
>>I was wondering if the JVM on Mac OS X 'adjusts' itself to make use of
>>specific processor capabilities, for instance the processing power of the
>>64-bit PowerPC G5. More specifically, does the JVM 'behave' differently on
>>such a processor with respect to floating point calculations, use of the
>>Java long (64-bit) datatype, dual processor, etc. Or is it the exact same
>>JVM as on a 32-bit architecture?

for clarification, i want to add that JVM math 'behaves' the same across all platforms:

http://java.sun.com/docs/books/vmspec/html/Overview.doc.html#22239

e.g. there are no native types.

as others have said though, the 64 bit types (long, double) are probably more performant on a native 64 bit processor.

nik
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