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RE: [Xen-users] performance problems
| To: | "Eric S. Johansson" <esj@xxxxxxxxxx>, "Per Andreas Buer" <perbu@xxxxxxxxx> |
|---|---|
| Subject: | RE: [Xen-users] performance problems |
| From: | "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx> |
| Date: | Wed, 30 Mar 2005 21:41:39 +0100 |
| Cc: | ian.pratt@xxxxxxxxxxxx, xen-users@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Wed, 30 Mar 2005 20:41:48 +0000 |
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| Thread-index: | AcU1XwMAE+taKicqQgWRXb/bRgollAACS8Lg |
| Thread-topic: | [Xen-users] performance problems |
> >> running a chgrp -R over a series of directories on an LVM > partition > >> and I noticed that it was taking forever. So I ran vmstat (sorry > >> about the line wrapping) and found that it was spending > roughly 99 > >> percent to 100 percent of the time waiting for (disk??) io. The high iowait may be due to the 2.6 dom0 blkback wait queue issue that is under investigation. It would be interesting to know what happens if you use a 2.4 dom0. > 10x slower than a non xen machine and it just > crashed+rebooted my xen setup. relevent enough?? ;-) The crash is very worrying. Is this Xen 2.0.5? Is this repeatable? Can you use a debug build and get a serial line on the machine? Thanks, Ian _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users |
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