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Re: [Xen-users] Xen and I/O Intensive Loads
| To: | Nick Couchman <Nick.Couchman@xxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-users] Xen and I/O Intensive Loads |
| From: | Pasi Kärkkäinen <pasik@xxxxxx> |
| Date: | Wed, 26 Aug 2009 20:32:59 +0300 |
| Cc: | XEN Mailing List <xen-users@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Wed, 26 Aug 2009 10:33:41 -0700 |
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On Wed, Aug 26, 2009 at 10:01:13AM -0600, Nick Couchman wrote: > > Hi, folks, > The disk volume for the e-mail is on my SAN, and I've attached the FC LUN to > my Xen host Does the SAN LUN perform OK from dom0 without any domUs running? > I'm running into an issue with high I/O wait on the box (~250%) and large > load averages (20-40 for the 1/5/15 minute average). Do you have iowait on dom0, or only in domU? Try running "iostat 1" in both dom0 and domU. Also, have you dedicated a cpu core only for dom0? > I'm running Xen 3.2.0 on SLES 10 SP2, on a Dell PowerEdge R610 server. The > FC HBA is a QLE2462, dual-channel 4Gb FC card. Any help, hints, etc., are > greatly appreciated! You could also try updating to SLES11. -- Pasi _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users |
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