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 v1: 10/13] introduce new command migrate_check_for_zero
Date: Thu, 11 Apr 2013 17:45:36 +0200 [thread overview]
Message-ID: <5166DAA0.1010507@redhat.com> (raw)
In-Reply-To: <5166D826.207@linux.vnet.ibm.com>
Il 11/04/2013 17:35, Michael R. Hines ha scritto:
> Nevertheless, the initial "burst" of the bulk phase round is still
> important to optimize, and I would like to know if the maintainer
> would accept this API for disabling the scan or not
I'm not a maintainer, but every opinion counts... and my opinion is "not
yet". Maybe for 1.6, and only after someone else tried it out. That's
why it's important to merge the code early.
> We think it's important because the total migration time can be much
> smaller with high-throughput RDMA links by optimizing the bulk-phase
> round and that lower total migration time is very valuable to many of
> our workloads, in addition to the low-downtime benefits you get with
> RDMA.
>
> I have expensive numbers only for the bulk phase round. Other than that,
> I would be breaking confidentiality outside of the paper we have already
> published.
Fair enough.
Paolo
next prev parent reply other threads:[~2013-04-11 15:48 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-10 22:28 [Qemu-devel] [RFC PATCH RDMA support v7: 00/13] rdma cleanup and reordering mrhines
2013-04-10 22:28 ` [Qemu-devel] [RFC PATCH RDMA support v1: 01/13] introduce qemu_ram_foreach_block() mrhines
2013-04-10 22:28 ` [Qemu-devel] [RFC PATCH RDMA support v1: 02/13] Core RMDA logic mrhines
2013-04-10 22:28 ` [Qemu-devel] [RFC PATCH RDMA support v1: 03/13] RDMA is enabled by default per the usual ./configure testing mrhines
2013-04-10 22:28 ` [Qemu-devel] [RFC PATCH RDMA support v1: 04/13] update QEMUFileOps with new hooks mrhines
2013-04-10 22:28 ` [Qemu-devel] [RFC PATCH RDMA support v1: 05/13] accessor function prototypes for new QEMUFileOps hooks mrhines
2013-04-10 22:28 ` [Qemu-devel] [RFC PATCH RDMA support v1: 06/13] implementation of " mrhines
2013-04-10 22:28 ` [Qemu-devel] [RFC PATCH RDMA support v1: 07/13] introduce capability for dynamic chunk registration mrhines
2013-04-11 2:24 ` Eric Blake
2013-04-11 2:39 ` Michael R. Hines
2013-04-10 22:28 ` [Qemu-devel] [RFC PATCH RDMA support v1: 08/13] default chunk registration to true mrhines
2013-04-10 22:28 ` [Qemu-devel] [RFC PATCH RDMA support v1: 09/13] parse QMP string for new 'rdma' protocol mrhines
2013-04-10 22:28 ` [Qemu-devel] [RFC PATCH RDMA support v1: 10/13] introduce new command migrate_check_for_zero mrhines
2013-04-11 2:26 ` Eric Blake
2013-04-11 2:39 ` Michael R. Hines
2013-04-11 7:52 ` Orit Wasserman
2013-04-11 12:30 ` Eric Blake
2013-04-11 12:36 ` Orit Wasserman
2013-04-11 17:53 ` Michael R. Hines
2013-04-11 3:11 ` Michael R. Hines
2013-04-11 7:38 ` Michael S. Tsirkin
2013-04-11 9:18 ` Paolo Bonzini
2013-04-11 11:13 ` Michael S. Tsirkin
2013-04-11 13:19 ` Michael R. Hines
2013-04-11 13:51 ` Michael S. Tsirkin
2013-04-11 14:06 ` Michael R. Hines
2013-04-11 14:17 ` Paolo Bonzini
2013-04-11 14:35 ` Michael R. Hines
2013-04-11 14:45 ` Paolo Bonzini
2013-04-11 15:37 ` Michael R. Hines
2013-04-11 13:24 ` Michael R. Hines
2013-04-11 14:15 ` Paolo Bonzini
2013-04-11 14:45 ` Michael S. Tsirkin
2013-04-11 14:57 ` Michael R. Hines
2013-04-11 15:01 ` Michael S. Tsirkin
2013-04-11 15:08 ` Paolo Bonzini
2013-04-11 15:35 ` Michael R. Hines
2013-04-11 15:45 ` Paolo Bonzini [this message]
2013-04-11 16:02 ` Michael R. Hines
2013-04-11 16:12 ` Paolo Bonzini
2013-04-11 16:07 ` Eric Blake
2013-04-11 16:29 ` Michael R. Hines
2013-04-11 16:36 ` Eric Blake
2013-04-10 22:28 ` [Qemu-devel] [RFC PATCH RDMA support v1: 11/13] send pc.ram over RDMA mrhines
2013-04-11 6:26 ` Paolo Bonzini
2013-04-11 12:41 ` Michael R. Hines
2013-04-10 22:28 ` [Qemu-devel] [RFC PATCH RDMA support v1: 12/13] updated protocol documentation mrhines
2013-04-11 2:43 ` Eric Blake
2013-04-11 2:47 ` Michael R. Hines
2013-04-11 6:29 ` Paolo Bonzini
2013-04-10 22:28 ` [Qemu-devel] [RFC PATCH RDMA support v1: 13/13] print out migration throughput while debugging mrhines
2013-04-10 22:32 ` [Qemu-devel] [RFC PATCH RDMA support v7: 00/13] rdma cleanup and reordering Michael R. Hines
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