Re: Performance patch for jdk1.5.0/amd64

[Michael Vince <mv@xxxxxxx>]

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.
>
>