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Re: [Xen-users] performance problems

  • To: xen-users@xxxxxxxxxxxxxxxxxxx
  • From: Per Andreas Buer <perbu@xxxxxxxxx>
  • Date: Wed, 30 Mar 2005 21:23:47 +0200
  • Delivery-date: Wed, 30 Mar 2005 19:25:06 +0000
  • List-id: Xen user discussion <xen-users.lists.xensource.com>

Eric S. Johansson skrev:

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.

Why is this a bad thing? Does the CPU have anything else to spend its time on? This sound normal to me. You might also want to tell us how this is relevant to Xen. :-)

There are only 10 different kinds of people in the world, those who understand binary, and those who don't.

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