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| From: | Paolo Bonzini |
| Subject: | Re: [Qemu-devel] [RFC PATCH RDMA support v4: 03/10] more verbose documentation of the RDMA transport |
| Date: | Tue, 19 Mar 2013 18:14:45 +0100 |
| User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130219 Thunderbird/17.0.3 |
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
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