KVM GUEST PERFORMANCE TUNING GUIDE
Table of Contents
1 general tuning
1.1 cpu
1.2 memory
1.3 I/O
1.4 others
1 general tuning
1.1 cpu
disable ksm
In the production enviroment, we found KSM thread eat lots of cpu utility with trival page comparing operations ,so we'd better turned it off.KSM is a service in qemu-kvm package.
$ chkconfig --list ksm
ksm 0:off 1:off 2:off 3:on 4:on 5:on 6:off
$ chkconfig --list ksmtuned
ksmtuned 0:off 1:......
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