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[Xen-devel] RE: x86-64 Net Performance [was: Opteron server and NUMA]

To: "Nicholas Lee" <emptysands@xxxxxxxxx>, "Alexander Charbonnet" <alexander@xxxxxxxxxxxxxx>
Subject: [Xen-devel] RE: x86-64 Net Performance [was: Opteron server and NUMA]
From: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
Date: Sun, 9 Oct 2005 12:05:20 +0100
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Thread-index: AcXMuVfAMD4FJo2MQMCHRURA1T+oIgAB8U0A
Thread-topic: x86-64 Net Performance [was: Opteron server and NUMA]
> On 10/9/05, Alexander Charbonnet <alexander@xxxxxxxxxxxxxx> wrote:
> > compiled into Debian's glibc package.  I can recompile and run that 
> > test if you think it's worth doing.
> 
> Very interesting number. Have you tried doing the same tests 
> between two different domUs or dom0 and a domU of the same type?
> 
> If you do recompile you could try the Xen TLS glibc patch. 
> [1] Although I'm not sure if 64bit Xen will work with this.
> 
> [1] http://wiki.xensource.com/xenwiki/XenSpecificGlibc

You don't need a patched glibc for x86_64 Xen as -ve segment offsets
aren't a performance issue.

Ian

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