Re: [Qemu-devel] [PATCH 00/21][RFC] postcopy live migration

2012-01-03 Thread Takuya Yoshikawa
(2012/01/01 18:52), Dor Laor wrote: But we really need to think hard about whether this is the right thing to take into the tree. I worry a lot about the fact that we don't test pre-copy migration nearly enough and adding a second form just introduces more things to test. It is an issue but it

Re: [Qemu-devel] [PATCH 00/21][RFC] postcopy live migration

2012-01-03 Thread Michael Roth
On 01/01/2012 03:52 AM, Dor Laor wrote: On 12/30/2011 12:39 AM, Anthony Liguori wrote: On 12/28/2011 07:25 PM, Isaku Yamahata wrote: Intro = This patch series implements postcopy live migration.[1] As discussed at KVM forum 2011, dedicated character device is used for distributed shared

Re: [Qemu-devel] [PATCH 00/21][RFC] postcopy live migration

2012-01-03 Thread Isaku Yamahata
On Thu, Dec 29, 2011 at 04:39:52PM -0600, Anthony Liguori wrote: TODO - benchmark/evaluation. Especially how async page fault affects the result. I'll review this series next week (Mike/Juan, please also review when you can). But we really need to think hard about whether this is the

Re: [Qemu-devel] [PATCH 00/21][RFC] postcopy live migration

2012-01-02 Thread Dor Laor
On 01/01/2012 06:27 PM, Stefan Hajnoczi wrote: On Sun, Jan 1, 2012 at 9:43 AM, Orit Wassermanowass...@redhat.com wrote: On 12/30/2011 12:39 AM, Anthony Liguori wrote: On 12/28/2011 07:25 PM, Isaku Yamahata wrote: Intro = This patch series implements postcopy live migration.[1] As

Re: [Qemu-devel] [PATCH 00/21][RFC] postcopy live migration

2012-01-02 Thread Stefan Hajnoczi
On Mon, Jan 2, 2012 at 9:28 AM, Dor Laor dl...@redhat.com wrote: At the end of the day, it's performance testing using various scenarios that can educate us whether post-copy worth the extra complexity over slowing down the guest on the source. True. It's certainly an interesting patch series

Re: [Qemu-devel] [PATCH 00/21][RFC] postcopy live migration

2012-01-01 Thread Orit Wasserman
On 12/30/2011 12:39 AM, Anthony Liguori wrote: On 12/28/2011 07:25 PM, Isaku Yamahata wrote: Intro = This patch series implements postcopy live migration.[1] As discussed at KVM forum 2011, dedicated character device is used for distributed shared memory between migration source and

Re: [Qemu-devel] [PATCH 00/21][RFC] postcopy live migration

2012-01-01 Thread Dor Laor
On 12/30/2011 12:39 AM, Anthony Liguori wrote: On 12/28/2011 07:25 PM, Isaku Yamahata wrote: Intro = This patch series implements postcopy live migration.[1] As discussed at KVM forum 2011, dedicated character device is used for distributed shared memory between migration source and

Re: [Qemu-devel] [PATCH 00/21][RFC] postcopy live migration

2012-01-01 Thread Stefan Hajnoczi
On Sun, Jan 1, 2012 at 9:43 AM, Orit Wasserman owass...@redhat.com wrote: On 12/30/2011 12:39 AM, Anthony Liguori wrote: On 12/28/2011 07:25 PM, Isaku Yamahata wrote: Intro = This patch series implements postcopy live migration.[1] As discussed at KVM forum 2011, dedicated character

Re: [Qemu-devel] [PATCH 00/21][RFC] postcopy live migration

2011-12-29 Thread Anthony Liguori
On 12/28/2011 07:25 PM, Isaku Yamahata wrote: Intro = This patch series implements postcopy live migration.[1] As discussed at KVM forum 2011, dedicated character device is used for distributed shared memory between migration source and destination. Now we can discuss/benchmark/compare with

[Qemu-devel] [PATCH 00/21][RFC] postcopy live migration

2011-12-28 Thread Isaku Yamahata
Intro = This patch series implements postcopy live migration.[1] As discussed at KVM forum 2011, dedicated character device is used for distributed shared memory between migration source and destination. Now we can discuss/benchmark/compare with precopy. I believe there are much rooms for