[Qemu-devel] %cpu used by qemu-kvm processes

[Jean-Pierre Ribeauville]

Hi,

 

My Guest users ask me why  , from Host point of view , there is a big difference interm of CPU % used by qemu-kvmcontrolling processs :

 

Result of  “top”  on the host :

 

For Windows guests:

 

8680 qemu      20   0 4939588 4.092g   9668 S  12.6  8.7 927:46.78 qemu-kvm

47377 qemu      20   0 2903560 2.121g   9676 S  11.6  4.5 587:08.42 qemu-kvm

 

For Linux Guests:

 

120443 qemu      20   0 4832180 1.312g   9628 S   1.7  2.8  59:43.79 qemu-kvm

43224 qemu      20   0 4825724 2.235g   9664 S   1.0  4.8 105:27.18 qemu-kvm

44894 qemu      20   0 4864728 1.450g   9648 S   1.0  3.1  41:30.73 qemu-kvm

45000 qemu      20   0 4862676 1.508g   9648 S   0.3  3.2  39:41.45 qemu-kvm

 

 

These guests are just booted , nothing special running on it as shown by “top”  ran on the Linux Guest :

 

%Cpu(s):  0.0 us,  0.2 sy,  0.0 ni, 99.8 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st

 

Or   on the Windows Guest

 

C:\Users\Administrator>wmic cpu get loadpercentage

LoadPercentage

0

0

 

 

Any idea to help me to answer them ?

 

Thx.

 

Reagrds,

 

J.P. Ribeauville

 

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