[Xen-users] Re: General Question about NFS speed and XEN

[Matthew Palmer <mpalmer@xxxxxxxxxxx>]

On Sun, Jun 04, 2006 at 01:24:02AM +0200, Robert Welz wrote:
> Just a question, I have measured 17 MB/sec file transfer speed over 
> Gigabit Ethernet without jumbo frames exported from DomU to a DomU in a 
> different Computer.
> 
> Before I started evaluating XEN I measured File filetransfer speed of 37 
> MB/sec, this time with FTP. In both cases I copied a single 2 GB File.
> 
> Before I start evaluating different filesystems like iSCSI od GDFS, I 
> want to know if the bottleneck is here NFS or XEN in general? I mean I 

NFS is pretty non-performant -- I'd redo your FTP test domU-to-domU so you
have some apples-to-apples comparisons.  You can then compare Xen to non-Xen
(via the FTP tests), and compare FTP to NFS (both in domU).

- Matt

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