[Bug 655874] Re: don't unmount cd

2010-10-21 Thread grego...@hotbox.ru
Ubuntu 10,10 i368 with all updates Also there is this bug, I hope for a quick fix -- don't unmount cd https://bugs.launchpad.net/bugs/655874 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.u

[Bug 455112] Re: VirtualBox performance is much worse when Intel VT-x is enabled

2009-12-02 Thread Grego
Some more notes: I'm using AMD-V and Nested Paging. Especially nested paging made a big positive difference in performance, up to 60-70% faster for compilation when enabled. So the VT-x in the bug description does not apply to me. Prior to compiling my own kernel I tried linux-rt kernel, but W

[Bug 455112] Re: VirtualBox performance is much worse when Intel VT-x is enabled

2009-12-02 Thread Grego
Recompiling Karmic kernel and setting the timer frequency to 250Hz cured this same problem for me, although I'm using the PUEL version of VirtualBox 3.0.12. I'm on amd64 Karmic (Kubuntu 9.10) host, AMD 7750 dual core CPU, WinXP SMP guest. For kernel compilation http://tinyurl.com/yb7pp5a instructi