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Re: Making a VE use a particular cpu [message #34354 is a reply to message #34353] Wed, 24 December 2008 14:29 Go to previous messageGo to previous message
piavlo is currently offline  piavlo
Messages: 159
Registered: January 2007
Senior Member
maratrus wrote on Wed, 24 December 2008 15:17

Hello,

as far as I see your node is running 2.6.24 kernel.
Sorry for misleading but my previous message concerns with 2.6.18 kernels.

2.6.24 kernel doesn't contain all this stuff.


So in 2.6.24 cpusets work as in vanilla kernel?

Quote:


The main idea of all this stuff is providing fair scheduler.
If we are going to run a process of particular VE we cannot guarantee that there are processes of that VE in a given CPU runqueue.


Frankly, I don't quite undertand:
Is this Virtual CPU runqueue or Physical CPU runqueue?
Scheduler can move proccess from one runqueue to another anyway, so how is it differenet in fairscheduling.

And why this does not happen in 2.6.24 ovz?
Is it since openvz fairscheduler based on new default linux CFS scheduler? If so then why this does not happen in CFS?

And if i'm on 2.6.18 ovz and use mpstat to monitor cpu load
which cpus do i see vcpus or pcpus?

Thanks

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