Re:Virtualbox 3.2.0 Beta 1 released, experimental OS X Guests
by mtw on Thursday April 29, 2010 @05:29PM
(#1306123)
I think it means you can increase the RAM of a VM without shutting it down. With Xen, the VM needs to be rebuilt (a couple of minutes off)
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Re:Virtualbox 3.2.0 Beta 1 released, experimental OS X Guests
by blacklife on Thursday April 29, 2010 @06:18PM
(#1306283)
Memory ballooning is basically a mechanism for hypervisor to steal pages from the guest and yes, so it allows for over-commitment. Memory balloon driver is present inside the guest and hypervisor communicates how many pages it needs back to the driver. The driver allocates pages and sends it back to the hypervisor.