|
From: | Michael R. Hines |
Subject: | Re: [Qemu-devel] [RFC PATCH RDMA support v4: 03/10] more verbose documentation of the RDMA transport |
Date: | Tue, 19 Mar 2013 13:49:34 -0400 |
User-agent: | Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130106 Thunderbird/17.0.2 |
I also did a test using RDMA + cgroup, and the kernel killed my QEMU :)So, infiniband is not smart enough to know how to avoid pinning a zero page, I guess.
- Michael On 03/19/2013 01:14 PM, Paolo Bonzini wrote:
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
[Prev in Thread] | Current Thread | [Next in Thread] |