Il 19/03/2013 18:09, Michael R. Hines ha scritto: > Allowing QEMU to swap due to a cgroup limit during migration is a viable > overcommit option? > > I'm trying to keep an open mind, but that would kill the migration > time.....
Would it swap? Doesn't the kernel back all zero pages with a single copy-on-write page? If that still accounts towards cgroup limits, it would be a bug. Old kernels do not have a shared zero hugepage, and that includes some distro kernels. Perhaps that's the problem. Paolo