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Date: Mon, 23 Jan 2006 16:44:13 +1100
From: Michael Vince <mv@roq.com>
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To: Greg Lewis <glewis@eyesbeyond.com>
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Cc: java@freebsd.org, Huang wen hui <hwh@gddsn.org.cn>
Subject: Re: Performance patch for jdk1.5.0/amd64
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Hi,
Does you have this patch as an attached file? I tried to use this patch 
but it appears to be mangled and didn't work on the latest jdk15 in the 
ports tree for me.

I really want to use this.

Regards,
Mike


Greg Lewis wrote:

>On Sun, Jan 15, 2006 at 05:45:40PM +0800, Huang wen hui wrote:
>  
>
>>Huang wen hui wrote:
>>
>>    
>>
>>>hi,
>>>I recently notice that jdk1.5.0-p2/amd64 is slower than jdk1.5.0-p2/i386
>>>on the same hardware in some situation.
>>> 
>>>
>>>      
>>>
>>I only got this problem on EM64T box, the "real" amd64 box do not affect.
>>    
>>
>
>It looks like something to do with AMD64 having prefetchw and EM64T needing
>to use prefetcht0 instead.
>
>  
>