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Limiting swap [message #15545] Sun, 05 August 2007 03:38 Go to next message
optize is currently offline  optize
Messages: 33
Registered: September 2006
Member
Is there any plans to make Openvz's resources more like Xen? I prefer OpenVZ since it's easier to use, however I need better resource management like Xen. Since I don't run a vps/hosting company, I don't resell my services -- therefore I don't want it to start killing my other processes, I rather a VPS slow down by lack of resources instead of killing my entire server.

Thanks.
Re: Limiting swap [message #15554 is a reply to message #15545] Sun, 05 August 2007 17:30 Go to previous message
rickb is currently offline  rickb
Messages: 368
Registered: October 2006
Senior Member
currently it is not possible. openvz is a single kernel design, and the swapping of memory is not VE specific; ie., the kernel manages swapping of memory without taking into account what VE, if any, the pages associate with. Its not such a bad thing, as a VE with a low memory ceiling which reaches its swap threshold, would severely annialiate the disk i/o of the system due to continual memory swapping. this would result in overall system performance deterioration *even when there is plenty of memory to distribute*.

Rick


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