On Thu, Feb 08, 2007 at 09:40:50PM -0800, Jim Klein wrote: > > On Thursday 08 February 2007 10:08am, Jim Klein wrote: > > Anyone been able to get the PV drivers from Xensource to work on an > > FC6 created HVM. Performance is rather sluggish, even on 64bit, > > without these, yet they don't seem to want to work here. Or, > > alternatively, is Red Hat working on their own? The HVM IO is really > > a bit too slow for most production use without them. > > > On Thu, 8 Feb 2007 11:26am, Lamont Peterson wrote: > > I don't believe that you can do this. > > > >But, I'm wondering what OS you're trying to run on the HVM DomU. If it's > >Linux, use a paravirtualized DomU. You'll get much better performance > >(especially on things like I/O). > > > >HVM adds some emulation overhead and, thus, is slower than PV. HVM is only > >necessary to run an OS for which no paravirtualized kernel is available. > >-- > >Lamont Peterson <lamont@xxxxxxxxxxxx> > >Senior Instructor > >Guru Labs, L.C. [ http://www.GuruLabs.com/ ] > > All my Linux guests are PV (been running Xen in production for 7 months - far longer > in testing.) I'm talking about Windows guests, which is why I would need PV drivers to work. > Am running 64bit Dom0 to alleviate some of the pain, but I/O is still too slow for anything > but lightweight applications. We're a RHEL shop, so would prefer to use RHEL as a base over > XenSource Commercial, but it looks like I may have to go that route if noone else is working > on PV drivers for Windows guests. > Interesting point is the fact that Novell will ship Windows PV drivers in SLES 10 SP1 when it's released in May 2007.. -- Pasi -- Fedora-xen mailing list Fedora-xen@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-xen
