[fedora-virt] Virtualization: qemu-kvm: Excessive CPU usage on host
Dario Lesca
d.lesca at solinos.it
Tue Dec 15 15:37:32 UTC 2009
Hello to everyone, on my laptop with F12x86_64 I have 'yum -y install
virtualization', then I installed a virtual machine F12x86_64
(without X, it's a server) for testing.
Unfortunately, when the guest machine is on and idle (does
anything) the host machine always has the cpu committed by the 15/25%
qemu-kvm.
> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> 3584 qemu 20 0 764m 179m 3116 S 19.3 5.9 10:06.45 qemu-kvm
Also, after a bit of time (more than an hour) and the guest machine is
unused, the process ksmd use excessive CPU (about 30%): another process
that slowed down with no apparent reason host (my laptop):
> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> 32 root 25 5 0 0 0 R 30.1 0.0 39:00.62 ksmd
> 3584 qemu 20 0 764m 523m 3116 S 15.9 17.3 31:59.25 qemu-kvm
All these things with VMware-server did not happen.
Is this normal?
It's possible do something to improve the situation?
Otherwise, I will have to go back to VMware.
Thanks in advance.
--
Dario Lesca <d.lesca at solinos.it>
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