Top not accurately reporting inside VM.

[Lee]

Hi,

I'm having an issue where top is extremely inaccurate when ran from inside a VM, with -50000000% cpu idle etc. A bit of digging hasn't found this to be a known issue, so I was wondering if anyone could shed some light on this?

Thanks
Lee

 

[Lee]

Anyone?

 

[dswartz]

What is the guest?

 

[Lee]

Ubuntu 10.04.

 

[dswartz]

Is this an container or a KVM? I am running ubuntu 10.10 as a KVM and no problems:

top - 09:53:38 up 2:14, 2 users, load average: 0.00, 0.01, 0.05
Tasks: 105 total, 1 running, 104 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 1022376k total, 460600k used, 561776k free, 376k buffers
Swap: 2301948k total, 0k used, 2301948k free, 277236k cached

 

[Lee]

It's in a container, we also don't have issues with KVMs either.

Is this an container or a KVM? I am running ubuntu 10.10 as a KVM and no problems:

top - 09:53:38 up 2:14, 2 users, load average: 0.00, 0.01, 0.05
Tasks: 105 total, 1 running, 104 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 1022376k total, 460600k used, 561776k free, 376k buffers
Swap: 2301948k total, 0k used, 2301948k free, 277236k cached

 

[dswartz]

No idea, then, sorry

 

[dietmar]

Do you run kernel 2.6.18 or 2.6.32?

 

[Lee]

2.6.32

 

[Lee]

Still experiencing this across all of our containers, any ideas?