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RE: [Xen-devel] Re: poor domU VBD performance.
| To: | Cédric Schieli <cedric@xxxxxxxxxxxxxxxxxx>, "peter bier" <peter_bier@xxxxxx> |
|---|---|
| Subject: | RE: [Xen-devel] Re: poor domU VBD performance. |
| From: | "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx> |
| Date: | Sun, 3 Apr 2005 17:38:47 +0100 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Sun, 03 Apr 2005 16:39:02 +0000 |
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| Thread-index: | AcU4YdHz/IE7slw+SsmN2YZ+Ps4bfQACNuAA |
| Thread-topic: | [Xen-devel] Re: poor domU VBD performance. |
> I can confim the problem only occur on SATA. > I've added an old IDE UDMA66 drive, created LVM volume from > it and ran same dd tests : > Dom0 : 12 MB/s > DomU : 12 MB/s SATA works fine for me on 2.0-testing. I get 50MB/s reading from a raw partition in both cases using: time dd if=/dev/sda6 of=/dev/null bs=1024k count=1024 Can you try a raw partition rather than LVM? Thanks, Ian _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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