Ticket #10451 (closed defect: worksforme)
Machine becomes very slow after virtualbox upgrade
|Reported by:||Merrilin||Owned by:|
|Version:||VirtualBox 4.1.8||Keywords:||very slow VM|
I recently upgraded a virtualbox that was running a version 3.x (sorry, I did not keep the old version number). The Gentoo 32 bit guest OS was running fine until now, but became unusably slow after the upgrade.
I noticed that deactivating the settings "VT-x/AMD-V" makes the machine halfway usable (with a 3x to 4x slowdown compared to before). With that option on (with or without "nested paging"), the slowdown is definetely higher than 10 and does not allow to do much with the VM.
I have tried numerous versions of Virtualbox 4, and am currently with 4.1.8. None of those I tried did behave better.
I also tried to destroy the VM and recreate it with the same .vdi file, with no success.