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Re: Hitting the privvmpages limit [message #33463 is a reply to message #33462]

Wed, 15 October 2008 13:56

maratrus
Messages: 1495
Registered: August 2007
Location: Moscow

Senior Member

Quote:

Comapring openvz vs. xen, hitting the privvmpages limit is a serious disadvantage of openvz. Even with a generous plan at many providers, you still risk hitting the limit.

1. privvmpages are not equal ro RAM pages.
2. privvmpages are equal to virtual pages.
3. virtual pages are equal to RAM + SWAP.

So, increasing privvmpages increase RAM+SWAP consumption of the VE.
Thus in can be concluded that current OpenVZ doesn't distinguish RAM and SWAP from inside the VE.

Quote:

Is there any kernel work planned or in progress to integrate container memeory with swap, so that virtual memory allocation works more like a standard kernel with swap?

Yes, of course. The development of such behavior is in progress.

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[Message index]

		Hitting the privvmpages limit By: John Kelly on Wed, 15 October 2008 13:37
		Re: Hitting the privvmpages limit By: maratrus on Wed, 15 October 2008 13:56
		Re: Hitting the privvmpages limit By: John Kelly on Wed, 15 October 2008 15:11
		Re: Hitting the privvmpages limit By: khorenko on Thu, 16 October 2008 10:39
		Re: Hitting the privvmpages limit By: John Kelly on Thu, 16 October 2008 12:37

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