[Xen-users] performance problems

["Eric S. Johansson" <esj@xxxxxxxxxx>]

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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