Take the 2-minute tour ×
Server Fault is a question and answer site for professional system and network administrators. It's 100% free, no registration required.

I have 6 KVM VMs running on a machine vs 8 CPU threads (Xeon E3) and those VMs are lightly loaded most of the time. And yet loadavg would suggest that load is ~200% of available CPU time:

top - 09:27:46 up 2 days, 13:51,  2 users,  load average: 16.67, 15.73, 14.03
Tasks: 303 total,   2 running, 301 sleeping,   0 stopped,   0 zombie
%Cpu0  :  9.9 us,  6.1 sy,  0.0 ni, 84.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu1  :  4.5 us,  3.3 sy,  0.0 ni, 92.2 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu2  :  3.5 us,  6.1 sy,  0.0 ni, 90.3 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu3  :  5.8 us, 10.8 sy,  0.0 ni, 83.4 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu4  :  3.4 us,  4.0 sy,  0.0 ni, 92.6 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu5  :  1.1 us,  4.6 sy,  0.0 ni, 94.3 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu6  :  1.9 us,  5.3 sy,  0.0 ni, 92.8 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu7  :  4.1 us,  4.2 sy,  0.0 ni, 91.7 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
KiB Mem:  32979192 total, 32737688 used,   241504 free,  4519588 buffers
KiB Swap: 32977912 total,   577956 used, 32399956 free,   242276 cached

As you can see CPUs are mostly idle, so why is loadavg so high?

OS: Debian 7.2 x64.

share|improve this question
    
Could you show: iotop and iostat -dmx 5 3 –  funny_sailor Jan 11 at 22:15
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.