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Re: [Xen-devel] domU NFS performance
| To: | Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] domU NFS performance |
| From: | Nicholas Lee <emptysands@xxxxxxxxx> |
| Date: | Mon, 29 Aug 2005 23:58:10 +1200 |
| Cc: | xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Mon, 29 Aug 2005 11:56:11 +0000 |
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On 8/29/05, Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> wrote: > A few things to try: Use TCP rather than UDP as the transport protocol. > Also, try setting rsize/wsize to less than the MTU (e.g. 1024). If the > latter fixes things, try setting just one of rsize/wsize to the lower > value. > > UDP and IP fragmentation have been the biggest sources of problems for > us. And I'm not totally sure how well Linux NFS implementation recovers > from packet loss when it runs over UDP. Just quickly remounting in TCP mode for both the mail and shell server didn't seem to help the mutt issue. I can reliably get this issue to reoccur by simply 'R' entering the Drafts folder. Then 'e' exiting back to the INBOX. I'll see if I can put together a test account for this at the end of the week. I'll look at trying NFS with TCP or smaller UDP on the desktop domU tomorrow. -- Nicholas Lee http://stateless.geek.nz gpg 8072 4F86 EDCD 4FC1 18EF 5BDD 07B0 9597 6D58 D70C _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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