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Re: [Xen-users] Xen and networking.
| To: | xen-users@xxxxxxxxxxxxxxxxxxx |
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| Subject: | Re: [Xen-users] Xen and networking. |
| From: | Tom Brown <xensource.com@xxxxxxxxxxxxxxxxxxx> |
| Date: | Sat, 29 Dec 2007 11:02:29 -0800 (PST) |
| Delivery-date: | Sat, 29 Dec 2007 11:03:09 -0800 |
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If I do a crude test from one guest over nfs, dd if=/dev/zero of=/nfs/test bs=32768 count=32768 This yields almost always 95-100MB/sec When I run two simultaneously, I cannot seem to get above 25MB/sec from each. It starts off with a large burst like each can do 100MB/sec, but then in a couple of seconds, tapers off to the 15-40MB/sec until the dd finishes. IMHO this doesn't sound like a XEN issue... and you'd be well off to test this without XEN in the picture, or at least from the dom0. It sounds like you might be expecting too much from your netapp... even it is limited to what it's hard drives can do... if the drives have to seek back and forth between two big files, then getting 30-80 MB/sec aggregate is not bad. -Tom _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users |
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