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[Xen-users] Windows Disk performance
| To: | xen-users@xxxxxxxxxxxxxxxxxxx |
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| Subject: | [Xen-users] Windows Disk performance |
| From: | Ruslan Sivak <russ@xxxxxxxxxx> |
| Date: | Fri, 06 Jun 2008 20:24:57 -0400 |
| Delivery-date: | Fri, 06 Jun 2008 17:25:38 -0700 |
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I've been getting disappointing results on IO reads when using windows
guests. I'm getting usually around 70MB/s reads using hdtune. When
installing James' PV drivers, the speed drops to about 20MB/s.
The host system is getting around 350MB/s reads. I'm wondering if there
is such a significant slowdown, or if my tests are somehow flawed. The
70MB/s persisted throughout my VM testing, whether I was using Xen,
XenSource or VMWare Server.
So my questions are:a. Is there a bottleneck somewhere which basically caps the windows disk performance? b. Is my testing methodology flawed. Is there a better windows tool that will measure performance? What about Linux tool? I'm currently using hdparm -t Russ _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users |
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