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Re: Making a VE use a particular cpu [message #34357 is a reply to message #34354]

Wed, 24 December 2008 17:36

maratrus
Messages: 1495
Registered: August 2007
Location: Moscow

Senior Member

Hello,

we have to provide an ability to divide processes into several groups (e.g. if VE1 has only one process and VE2 has hundred of them the last hundred processes in VE2 should get the same CPU time (in sum) as a single one in VE1).
O(1) scheduler make OpenVZ developers to create an additional layer to provide such functionality.

Using CFS scheduler allowed to get rid of some things because it was possible to use hierarchy without building a massive additional layer.

Quote:

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

Information from proc concerning cpus should be represent as vcpu.

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[Message index]

		Making a VE use a particular cpu By: arghbis on Mon, 22 December 2008 09:38
		Re: Making a VE use a particular cpu By: maratrus on Mon, 22 December 2008 13:37
		Re: Making a VE use a particular cpu By: arghbis on Mon, 22 December 2008 13:43
		Re: Making a VE use a particular cpu By: piavlo on Mon, 22 December 2008 23:12
		Re: Making a VE use a particular cpu By: piavlo on Tue, 23 December 2008 00:13
		Re: Making a VE use a particular cpu By: arghbis on Tue, 23 December 2008 09:29
		Re: Making a VE use a particular cpu By: maratrus on Tue, 23 December 2008 14:48
		Re: Making a VE use a particular cpu By: piavlo on Tue, 23 December 2008 16:19
		Re: Making a VE use a particular cpu By: maratrus on Wed, 24 December 2008 13:17
		Re: Making a VE use a particular cpu By: piavlo on Wed, 24 December 2008 14:29
		Re: Making a VE use a particular cpu By: maratrus on Wed, 24 December 2008 17:36
		Re: Making a VE use a particular cpu By: piavlo on Wed, 24 December 2008 18:31
		Re: Making a VE use a particular cpu By: maratrus on Thu, 25 December 2008 07:28
		Re: Making a VE use a particular cpu By: piavlo on Thu, 25 December 2008 13:39
		Re: Making a VE use a particular cpu By: maratrus on Fri, 26 December 2008 07:43

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