XP guests sluggish after around 1 week of uptime

Jay Mann
2009-01-12T04:15:09Z

If this is the wrong place to ask this question, please let me know.

I’m running kvm-80 on ubuntu 8.04 x64 kernel 2.6.24-22-server, md raid 5 with
LVM. When my host is first booted my windows XP guest runs fine, but after
around a week or so of uptime, they start to run very sluggish. It takes around
a minute just to open the start menu.

I'm starting to wonder if it is a problem with kvm (qemu) disk performance. The
Read/Write speeds seems to be half as fast as my VMWare XP guest. But not sure
why this would happen after running fine for around a week.

I have the XP guest set to use 2GB of ram and disabled the paging file but that
still doesn’t help.

Any advice on troubleshooting this would be appreciated.

Thanks,

-J