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Re: OpenVZ IO Isolation ? [message #42606 is a reply to message #42604]

Thu, 05 May 2011 18:46

seanfulton
Messages: 105
Registered: May 2007

Senior Member

Absolutely! I know of no Linux system that will block *all* disk I/O from all other processes until one process finishes it's task. A DOS system, maybe. But Linux has a scheduler that hops back and forth between processes to give everybody a little slice of heaven from time to time. That's where you would use ionice to determine how big a slice each player gets.

No, this is really odd because it just shuts down everything until the MySQL restore is either killed or finished.

First post I had on this was a bug report and I thought it was related to an NFS file transfer, because it cropped up on the HN while doing a backup onto an NFS volume. In the year's since, I've seen it reappear over and over again, but since most of the "heavy" stuff is being done within the VE's, I haven't noticed whether it happens on the HN itself.

sean

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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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