>>> I suspect you may need the following patch to improve your 4.1.2 >>> performance: >>> >>> http://xenbits.xen.org/hg/xen-4.1-testing.hg/rev/435493696053 >>> >>> The cache flush on every C2 transition is very expensive and causes >>> a large slow down. >>> 4.1.3-rc3 already includes that patch so it would be worth testing >>> that version. >> MA Young, could this be back-ported in the F17 and F16. I belive >> Micahel Petullo setup a bug for that? > I don't recall I seeing a bug for this but the patch is in > xen-4.1.2-25.fc18 and xen-4.1.2-25.fc17 (which is building now). The performance-related bug I filed is at: https://bugzilla.redhat.com/show_bug.cgi?id=841330 -- Mike :wq -- xen mailing list xen@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/xen