@Michał Gołębiowski: I can confirm that this problem didn't exist in Jaunty where Virtualbox ran very well with SMP (2 cpus) enabled (and, of course, VT-x which is required for SMP). I have an Intel Core2Duo E8400 with 3 GHz.
Now under Karmic the situation is considerably worse: With SMP enabled, VB runs very slowly on my machine. Going back to 1 cpu and leaving VT-x enabled improves the performance a bit (but still not comparable with Jaunty), and disabling VT-x makes it worse again. So something has changed in Karmic under the hood and not for the better ... -- VirtualBox performance is much worse when Intel VT-x is enabled https://bugs.launchpad.net/bugs/455112 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
