Re: [Qemu-devel] [RFC 10/29] migration: new property "x-postcopy-fast"

2017-08-01 Thread Peter Xu
On Tue, Aug 01, 2017 at 09:50:02AM +0100, Dr. David Alan Gilbert wrote: > * Peter Xu (pet...@redhat.com) wrote: > > On Mon, Jul 31, 2017 at 07:52:24PM +0100, Dr. David Alan Gilbert wrote: > > > * Peter Xu (pet...@redhat.com) wrote: > > > > This provides a way to start postcopy ASAP when migration

Re: [Qemu-devel] [RFC 10/29] migration: new property "x-postcopy-fast"

2017-08-01 Thread Dr. David Alan Gilbert
* Peter Xu (pet...@redhat.com) wrote: > On Mon, Jul 31, 2017 at 07:52:24PM +0100, Dr. David Alan Gilbert wrote: > > * Peter Xu (pet...@redhat.com) wrote: > > > This provides a way to start postcopy ASAP when migration starts. To do > > > this, we need both: > > > > > > -global

Re: [Qemu-devel] [RFC 10/29] migration: new property "x-postcopy-fast"

2017-07-31 Thread Peter Xu
On Mon, Jul 31, 2017 at 07:52:24PM +0100, Dr. David Alan Gilbert wrote: > * Peter Xu (pet...@redhat.com) wrote: > > This provides a way to start postcopy ASAP when migration starts. To do > > this, we need both: > > > > -global migration.x-postcopy-ram=on \ > > -global

Re: [Qemu-devel] [RFC 10/29] migration: new property "x-postcopy-fast"

2017-07-31 Thread Dr. David Alan Gilbert
* Peter Xu (pet...@redhat.com) wrote: > This provides a way to start postcopy ASAP when migration starts. To do > this, we need both: > > -global migration.x-postcopy-ram=on \ > -global migration.x-postcopy-fast=on Can you explain why this is necessary? Both sides already know they're doing