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Re: [Xen-users] NFS between domU and dom0 causes the virtual network to freeze! Please help

  • To: "Martin Fernau" <m.fernau@xxxxxxxxxx>
  • From: "Ciro Iriarte" <cyruspy@xxxxxxxxx>
  • Date: Thu, 16 Oct 2008 13:26:26 -0400
  • Cc: xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Thu, 16 Oct 2008 10:27:07 -0700
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>
2008/10/16 Martin Fernau <m.fernau@xxxxxxxxxx>:
> Okay, it seems that rsize and wsize is the cause for my problems. I manually
> set both to 1024 for testing purposes and now I can dd a large file of >500MB
> over NFS.
> How can I determine the best settings for both values?
>
> Regards,
> Martin Fernau
>

Try with 8192, with NFSv3 you can even try 16384 and 32768. You can
evaluate the performance with time+dd on the mounted NFS share...

Regards,
Ciro

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