RE: [Xen-devel] MPI benchmark performance gap between native lin

To:	"xuehai zhang" <hai@xxxxxxxxxxxxxxx>, "Nivedita Singhvi" <niv@xxxxxxxxxx>
Subject:	RE: [Xen-devel] MPI benchmark performance gap between native linuxand domU
From:	"Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
Date:	Tue, 5 Apr 2005 07:41:52 +0100
Cc:	Xen-devel@xxxxxxxxxxxxxxxxxxx
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Thread-topic:	[Xen-devel] MPI benchmark performance gap between native linuxand domU

 
> >> Experiment 1: I boot all 8 nodes with native linux (nosmp, kernel
> >> 2.4.29) and use all
> > 
> > 
> >> Experiment 2: I boot all 8 nodes with Xen running and 
> start a single 
> >> user domain (port 2.6.10,using file-backed VBD) on each node with 
> >> 360MB memory. Then
> > 
> > 
> > 
> > What do you get when you compare 2.4.29 native Linux against 2.6.10 
> > native Linux, without Xen involved at all?
> 
> 2.6.10 is not for native Linux but for domU (Xen is running 
> on the machine).
> Xuehai

What are you using in dom0? 2.6.10 is likely to give best performance.

Ian

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RE: [Xen-devel] MPI benchmark performance gap between native linuxand do