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[Xen-users] performance problems

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] performance problems
From: "Eric S. Johansson" <esj@xxxxxxxxxx>
Date: Wed, 30 Mar 2005 13:12:36 -0500
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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.

any ideas why performance is less than ideal?

procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 1 1 1908 1480 42428 5464 0 0 254 1462 320 189 0 1 0 99 1 1 1908 1416 42668 5464 0 0 264 885 271 160 0 1 0 99 0 1 1908 1304 42892 5464 0 0 266 1051 280 177 0 0 0 100 0 1 1908 1352 42836 5464 0 0 273 1029 282 164 0 1 0 99 0 2 1908 1640 42720 5464 0 0 258 1016 264 168 0 0 0 100

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