[CentOS-virt] top on host and guest

Markus Falb markus.falb at fasel.at
Sat Jul 21 08:40:33 EDT 2012


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Hi,
I have a 6.3 guest running on a 6.3 host and the output from top seems
strange to me. At least I did not expect this.

While in the guest on core is busy with i/o the host seems idle.
Does anyone know why it is this way?

See the output from top below, first the one from guest, then host.

top - 14:12:35 up 12 min,  1 user,  load average: 2.76, 2.28, 1.24
Tasks: 169 total,   1 running, 168 sleeping,   0 stopped,   0 zombie
Cpu0  :  0.3%us,  0.7%sy,  0.0%ni,  0.0%id, 99.0%wa,  0.0%hi,  0.0%si,
Cpu1  :  0.0%us,  0.0%sy,  0.0%ni,100.0%id,  0.0%wa,  0.0%hi,  0.0%si,
Cpu2  :  0.0%us,  0.0%sy,  0.0%ni,100.0%id,  0.0%wa,  0.0%hi,  0.0%si,
Cpu3  :  0.0%us,  0.3%sy,  0.0%ni, 99.7%id,  0.0%wa,  0.0%hi,  0.0%si,

top - 14:14:28 up 15 min,  1 user,  load average: 0.79, 0.84, 0.50
Tasks: 238 total,   2 running, 236 sleeping,   0 stopped,   0 zombie
Cpu0  :  5.7%us,  1.0%sy,  0.0%ni, 93.3%id,  0.0%wa,  0.0%hi,  0.0%si,
Cpu1  :  0.3%us,  0.3%sy,  0.0%ni, 99.3%id,  0.0%wa,  0.0%hi,  0.0%si,
Cpu2  :  0.7%us,  1.0%sy,  0.0%ni, 98.3%id,  0.0%wa,  0.0%hi,  0.0%si,
Cpu3  :  0.3%us,  0.3%sy,  0.0%ni, 99.3%id,  0.0%wa,  0.0%hi,  0.0%si,
Cpu4  :  3.0%us,  0.7%sy,  0.0%ni, 96.4%id,  0.0%wa,  0.0%hi,  0.0%si,
Cpu5  :  0.0%us,  0.7%sy,  0.0%ni, 98.3%id,  0.0%wa,  0.0%hi,  1.0%si,
Cpu6  :  0.0%us,  0.0%sy,  0.0%ni,100.0%id,  0.0%wa,  0.0%hi,  0.0%si,
Cpu7  :  0.0%us,  0.0%sy,  0.0%ni,100.0%id,  0.0%wa,  0.0%hi,  0.0%si,

- -- 
Kind Regards, Markus Falb

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