From: Paolo Bonzini <pbonzini@redhat.com>
To: "Michael R. Hines" <mrhines@linux.vnet.ibm.com>
Cc: aliguori@us.ibm.com, "Michael S. Tsirkin" <mst@redhat.com>,
qemu-devel@nongnu.org, owasserm@redhat.com, abali@us.ibm.com,
mrhines@us.ibm.com, gokul@us.ibm.com
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 [thread overview]
Message-ID: <51489D05.2000400@redhat.com> (raw)
In-Reply-To: <51489BC3.3030504@linux.vnet.ibm.com>
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
next prev parent reply other threads:[~2013-03-19 17:15 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-18 3:18 [Qemu-devel] [RFC PATCH RDMA support v4: 00/10] cleaner ramblocks and documentation mrhines
2013-03-18 3:18 ` [Qemu-devel] [RFC PATCH RDMA support v4: 01/10] ./configure --enable-rdma mrhines
2013-03-18 3:18 ` [Qemu-devel] [RFC PATCH RDMA support v4: 02/10] check for CONFIG_RDMA mrhines
2013-03-18 3:18 ` [Qemu-devel] [RFC PATCH RDMA support v4: 03/10] more verbose documentation of the RDMA transport mrhines
2013-03-18 10:40 ` Michael S. Tsirkin
2013-03-18 20:24 ` Michael R. Hines
2013-03-18 21:26 ` Michael S. Tsirkin
2013-03-18 23:23 ` Michael R. Hines
2013-03-19 8:19 ` Michael S. Tsirkin
2013-03-19 13:21 ` Michael R. Hines
2013-03-19 15:08 ` Michael R. Hines
2013-03-19 15:16 ` Michael S. Tsirkin
2013-03-19 15:32 ` Michael R. Hines
2013-03-19 15:36 ` Michael S. Tsirkin
2013-03-19 17:09 ` Michael R. Hines
2013-03-19 17:14 ` Paolo Bonzini [this message]
2013-03-19 17:23 ` Michael S. Tsirkin
2013-03-19 17:40 ` Michael R. Hines
2013-03-19 17:52 ` Paolo Bonzini
2013-03-19 18:04 ` Michael R. Hines
2013-03-20 13:07 ` Michael S. Tsirkin
2013-03-20 15:15 ` Michael R. Hines
2013-03-20 15:22 ` Michael R. Hines
2013-03-20 15:55 ` Michael S. Tsirkin
2013-03-20 16:08 ` Michael R. Hines
2013-03-20 19:06 ` Michael S. Tsirkin
2013-03-20 20:20 ` Michael R. Hines
2013-03-20 20:31 ` Michael S. Tsirkin
2013-03-20 20:39 ` Michael R. Hines
2013-03-20 20:46 ` Michael S. Tsirkin
2013-03-20 20:56 ` Michael R. Hines
2013-03-21 5:20 ` Michael S. Tsirkin
2013-03-20 20:24 ` Michael R. Hines
2013-03-20 20:37 ` Michael S. Tsirkin
2013-03-20 20:45 ` Michael R. Hines
2013-03-20 20:52 ` Michael S. Tsirkin
2013-03-19 17:49 ` Michael R. Hines
2013-03-21 6:11 ` Michael S. Tsirkin
2013-03-21 15:22 ` Michael R. Hines
2013-04-05 20:45 ` Michael R. Hines
2013-04-05 20:46 ` Michael R. Hines
2013-03-18 3:18 ` [Qemu-devel] [RFC PATCH RDMA support v4: 04/10] iterators for getting the RAMBlocks mrhines
2013-03-18 8:48 ` Paolo Bonzini
2013-03-18 20:25 ` Michael R. Hines
2013-03-18 3:18 ` [Qemu-devel] [RFC PATCH RDMA support v4: 05/10] reuse function for parsing the QMP 'migrate' string mrhines
2013-03-18 3:18 ` [Qemu-devel] [RFC PATCH RDMA support v4: 06/10] core RDMA migration code (rdma.c) mrhines
2013-03-18 3:19 ` [Qemu-devel] [RFC PATCH RDMA support v4: 07/10] connection-establishment for RDMA mrhines
2013-03-18 8:56 ` Paolo Bonzini
2013-03-18 20:26 ` Michael R. Hines
2013-03-18 3:19 ` [Qemu-devel] [RFC PATCH RDMA support v4: 08/10] introduce QEMUFileRDMA mrhines
2013-03-18 9:09 ` Paolo Bonzini
2013-03-18 20:33 ` Michael R. Hines
2013-03-19 9:18 ` Paolo Bonzini
2013-03-19 13:12 ` Michael R. Hines
2013-03-19 13:25 ` Paolo Bonzini
2013-03-19 13:40 ` Michael R. Hines
2013-03-19 13:45 ` Paolo Bonzini
2013-03-19 14:10 ` Michael R. Hines
2013-03-19 14:22 ` Paolo Bonzini
2013-03-19 15:02 ` [Qemu-devel] [Bug]? (RDMA-related) ballooned memory not consulted during migration? Michael R. Hines
2013-03-19 15:12 ` Michael R. Hines
2013-03-19 15:17 ` Michael S. Tsirkin
2013-03-19 18:27 ` [Qemu-devel] [RFC PATCH RDMA support v4: 08/10] introduce QEMUFileRDMA Michael R. Hines
2013-03-19 18:40 ` Paolo Bonzini
2013-03-20 15:20 ` Paolo Bonzini
2013-03-20 16:09 ` Michael R. Hines
2013-03-18 3:19 ` [Qemu-devel] [RFC PATCH RDMA support v4: 09/10] check for QMP string and bypass nonblock() calls mrhines
2013-03-18 8:47 ` Paolo Bonzini
2013-03-18 20:37 ` Michael R. Hines
2013-03-19 9:23 ` Paolo Bonzini
2013-03-19 13:08 ` Michael R. Hines
2013-03-19 13:20 ` Paolo Bonzini
2013-03-18 3:19 ` [Qemu-devel] [RFC PATCH RDMA support v4: 10/10] send pc.ram over RDMA mrhines
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