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

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] General Question about NFS speed and XEN
From: Javier Guerra <javier@xxxxxxxxxxx>
Date: Sat, 3 Jun 2006 21:32:35 -0500
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On Saturday 03 June 2006 6:24 pm, Robert Welz wrote:
> 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
> know that FTP and NFS is not really comparable but.. will I get a lot
> more speed with onother filesystem?

as you point, FTP and NFS are two really different beasts; but also remember 
that NFS have a lot of configurable options.  sometimes one setting could 
improve performace in a given situation and degrade it on others.

at least, try changing these:

- TCP vs UDP transport.
- higher rsize and wsize (default 1024, some recommend 8192)
- lower rsize/wsize (sometimes just below MTU is better)


-- 
Javier

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