On 05/24/2011 08:57 PM, Bill Davidsen wrote: > What? Are you saying that KVM support is out of the PAE 32bit kernel? Because > libvirt, virt-manager, etc, are definitely shown as available packages. As far > as limitations and performance go, unless you have applications which push the > 4GB memory limit of PAE, you will be essentially the same in either case, but > will have a harder time finding third party applications for 64 bit. I was talking *only* about RHEL support but here are the details if you want to know http://www.redhat.com/rhel/server/virtualization_support.html > I have a pair of systems, i7-950, 12GB RAM, 4x1TB RAID5, doing VM hosting. One > is fc13 i686, one is fc13 x86_64. There is no obvious performance difference, > the only benefit of x86_54 is that I can run a 64 bit guest for testing. Benchmarking has shown conclusively that x86_64 has much better performance for virtualization if you have over 4GB RAM for typical workloads. YMMV Rahul -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines