On Sat March 28 2009, Markus Fischer wrote: > Hi, > > Michael S. Zick wrote: > > And in answer to my own question - - > > Yes you are running a 32bit host kernel on a 64bit host machine. > > That should not be a problem - but you could run a 64bit kernel. > > (and still run either 32bit or 64bit guests) > > > > I do that myself (uname -a): > > Linux wolf-c2q 2.6.27.10-vs2.3.0.36.2 #1 SMP PREEMPT Sun Dec 21 12:21:07 CST 2008 x86_64 Intel(R) Core(TM)2 Quad CPU Q9300 @ 2.50GHz GenuineIntel GNU/Linux > > (note the x86_64 which some distro's have adopted over the older "amd64" tag) > > I've to confess that I just can't remember it anymore, whether it was > deliberate or not to *not* install a 64bit kernel. > > It's probably getting completely offtopic now, but I guess I can't just > upgrade the kernel in-place because my system has no 64bit libraries and > I would need to re-install from scratch to have everything running > smooth ... ? > Not entirely off topic - cpu scheduling might differ between single and multiple processor package installation (I don't expect that it would, but. . .) It also might make a difference running a 32bit kernel on 64bit hardware - Again, it should not, but. . . You would have to do a complete distribution upgrade - whatever that means for your setup - of course, if your host context is only running sshd and iptables it might be quick and easy (the guests will never notice - except for the restarts). As to your original question - I can't help - never needed to use the feature - not enough load on a personal development machine to make much difference. This system (very performance similar to yours) can rebuild the host 64bit Gentoo and a guest 32bit Gentoo (both @ -j5) without hardly even turning up its fan speed. (While I also watch streaming HDMI video on it.) You might want to try just disabling all L-VS scheduling and let the kernel just "deal with it". ;) It takes an awful big work load to slow one of these things down. Mike > thx, > - Markus > >