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Re: [Xen-users] Disk IO trouble in Xen
| To: | Greg Hellings <greg.hellings@xxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-users] Disk IO trouble in Xen |
| From: | Stefan de Konink <skinkie@xxxxxxxxx> |
| Date: | Tue, 6 May 2008 00:00:37 +0200 (CEST) |
| Cc: | "xen-users@xxxxxxxxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Mon, 05 May 2008 15:01:20 -0700 |
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On Mon, 5 May 2008, Greg Hellings wrote: > Iozone shows very similar numbers on both the Dom0 and DomU. The DomU seems > to freeze periodically and drop network connections. I assumed this was IO > related because everything else seems fine and those hdparm numbers are so > far off. Also heavy IO related tasks seem slow. I'm fairly baffled now. ...to put my 2cts again. It is probably block cache related. And I really ask for any 'real' Xen developer of Citrix to do this simple experiment and report their findings: Allocate a nice partition, for example on NFS. Run bonnie++ with two times the memory size of the host system. Report findings :) Stefan _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users |
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