Am 12.02.2013 13:38, schrieb Gordan Bobic: >> -O3 -march=corei7 -mtune=corei7 -mmmx -msse2 -msse3 -msse4.1 -msse4.2 -maes -fopenmp -mfpmath=sse > > That just tells me you didn't push the machine to full saturation. > > Virtualization takes resources, and you cannot go faster by adding overheads. The only exception to this is where > you have hardware specifically designed for this, with a hypervisor in firmware running on proprietary resources > that a generic bare metal OS wouldn't be able to access anyway (or at least it wouldn't know what to do with it). > In such cases you have an added bonus that you can reboot the host without switching off the guests (and without > migrating them elsewhere, either). But hardware like that is very proprietary and uncommon. that just tells that you can disable a lot of services and overhead in a VM you would never do on bare metal and it tells that the hypervisor can schedule IO much more efficient as a generic kernel without less overhead however, it does not interest me to discuss with you after years of expierence with virtualization and bare metal for nearly any known type of servers with very dfifferent and mixed load
Attachment:
signature.asc
Description: OpenPGP digital signature
-- 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 Have a question? Ask away: http://ask.fedoraproject.org
