|
From: | The MoonSeeker |
Subject: | Re: [Qemu-devel] RAM overcomittment |
Date: | Thu, 28 Sep 2006 00:16:32 +0200 |
Le 27 sept. 06 à 23:57, James Olsen a écrit :
The problem is the swaping even the VM don't need all of ressource assigned... We lost RAM... By example you run 4 VM who have 256 MB (assigned with -M option) but just use 56MB in most of time.. with qemu we lost 4 X (256-56MB) = 800MB of RAM! Somme other virtualization solution like OpenVz and VServer let this RAM overcommitment. On a VM when you make the command free you can show all RAM installed on the workstation, and with file configuration you set the guaranteed RAM (in this case 56MB) and the limite (in this case 256MB). The limit can be reach only for a cup of time (when VM need ressource..)!!! Do you understant what I mean? I'd like to create an open network simulator based on qemu but this restriction can't let me use qemu... What do you think? |
[Prev in Thread] | Current Thread | [Next in Thread] |