On Wed, Jun 17, 2015 at 6:33 PM, Vasiliy Tolstov <v.tolstov@xxxxxxxxx> wrote: > 2015-06-17 17:09 GMT+03:00 Andrey Korolyov <andrey@xxxxxxx>: >> The rest of visible memory is eaten by reserved kernel areas, for us >> this was a main reason to switch to a hotplug a couple of years ago. >> You would not be able to scale a VM by an order of magnitude with >> regular balloon mechanism without mentioned impact, unfortunately. >> Igor Mammedov posted hotplug-related patches for 2.6.32 a while ago, >> though RHEL6 never adopted them by some reason. > > > Hmm.. Thanks for info, from what version of kernel memory hotplug works? > > -- > Vasiliy Tolstov, > e-mail: v.tolstov@xxxxxxxxx Currently QEMU memory hotplug should work with 3.8 and onwards. Mentioned patches are an adaptation for an older frankenkernel of 3.8` functionality. -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list