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Re: OpenVZ IO Isolation ? [message #43403 is a reply to message #43386]

Tue, 06 September 2011 02:32

andre
Messages: 36
Registered: January 2008

Member

Whenever I experienced this issue, I played with IOPRIO (giving less priority to the io leecher and more priority to the rest) without success. Even if it worked, I do agree with seanfulton, "isolation" means that one container should not be able to affect the guaranteed resources of the other container:

Equal share of IO on a server with 2 containers should mean that each of them have 50% io guarantee and if one of them is able to make the other one unusable (100% iowait) there is no io isolation at all.

I still have not had the opportunity to confirm if RHEL6 kernel fixed this but based on sean report I believe it is ok !

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[Message index]

		OpenVZ IO Isolation ? By: andre on Thu, 28 April 2011 14:22
		Re: OpenVZ IO Isolation ? By: seanfulton on Sun, 01 May 2011 18:10
		Re: OpenVZ IO Isolation ? By: seanfulton on Tue, 03 May 2011 20:40
		Re: OpenVZ IO Isolation ? By: swindmill on Thu, 05 May 2011 17:07
		Re: OpenVZ IO Isolation ? By: seanfulton on Thu, 05 May 2011 18:28
		Re: OpenVZ IO Isolation ? By: swindmill on Thu, 05 May 2011 18:37
		Re: OpenVZ IO Isolation ? By: seanfulton on Thu, 05 May 2011 18:46
		Re: OpenVZ IO Isolation ? By: andre on Tue, 30 August 2011 00:58
		Re: OpenVZ IO Isolation ? By: seanfulton on Tue, 30 August 2011 15:26
		Re: OpenVZ IO Isolation ? By: andre on Wed, 31 August 2011 20:27
		Re: OpenVZ IO Isolation ? By: mustardman on Fri, 02 September 2011 17:04
		Re: OpenVZ IO Isolation ? By: seanfulton on Fri, 02 September 2011 18:06
		Re: OpenVZ IO Isolation ? By: seanfulton on Fri, 02 September 2011 18:11
		Re: OpenVZ IO Isolation ? By: mustardman on Fri, 02 September 2011 20:37
		Re: OpenVZ IO Isolation ? By: andre on Tue, 06 September 2011 02:32
		Re: OpenVZ IO Isolation ? By: raver119 on Tue, 13 September 2011 00:10

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