Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for live migration

2015-11-30 Thread Koniszewski, Pawel
2015-11-30 14:45 GMT+08:00 Koniszewski, Pawel : > -Original Message- > From: Murray, Paul (HP Cloud) [mailto:pmur...@hpe.com] > Sent: Friday, November 27, 2015 4:29 PM > To: Daniel P. Berrange; Carlton, Paul (Cloud Services) > Cc: 少合冯; OpenStack Development

Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for live migration

2015-11-30 Thread Koniszewski, Pawel
> -Original Message- > From: Murray, Paul (HP Cloud) [mailto:pmur...@hpe.com] > Sent: Friday, November 27, 2015 4:29 PM > To: Daniel P. Berrange; Carlton, Paul (Cloud Services) > Cc: 少合冯; OpenStack Development Mailing List (not for usage questions); > John Garbutt; Koniszewski, Pawel; Jin,

Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for live migration

2015-11-30 Thread 少合冯
2015-11-30 16:19 GMT+08:00 Koniszewski, Pawel : > 2015-11-30 14:45 GMT+08:00 Koniszewski, Pawel >: > > -Original Message- > > From: Murray, Paul (HP Cloud) [mailto:pmur...@hpe.com] > > Sent: Friday, November 27, 2015 4:29 PM > >

Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for live migration

2015-11-29 Thread Koniszewski, Pawel
> -Original Message- > From: Murray, Paul (HP Cloud) [mailto:pmur...@hpe.com] > Sent: Friday, November 27, 2015 4:29 PM > To: Daniel P. Berrange; Carlton, Paul (Cloud Services) > Cc: 少合冯; OpenStack Development Mailing List (not for usage questions); > John Garbutt; Koniszewski, Pawel; Jin,

Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for live migration

2015-11-29 Thread 少合冯
2015-11-30 14:45 GMT+08:00 Koniszewski, Pawel : > > -Original Message- > > From: Murray, Paul (HP Cloud) [mailto:pmur...@hpe.com] > > Sent: Friday, November 27, 2015 4:29 PM > > To: Daniel P. Berrange; Carlton, Paul (Cloud Services) > > Cc: 少合冯; OpenStack

Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for live migration

2015-11-27 Thread 少合冯
2015-11-27 2:19 GMT+08:00 Daniel P. Berrange : > On Thu, Nov 26, 2015 at 05:39:04PM +, Daniel P. Berrange wrote: > > On Thu, Nov 26, 2015 at 11:55:31PM +0800, 少合冯 wrote: > > > 3. dynamically choose when to activate xbzrle compress for live > migration. > > > This is

Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for live migration

2015-11-27 Thread 少合冯
2015-11-27 19:49 GMT+08:00 Daniel P. Berrange : > On Fri, Nov 27, 2015 at 07:37:50PM +0800, 少合冯 wrote: > > 2015-11-27 2:19 GMT+08:00 Daniel P. Berrange : > > > > > On Thu, Nov 26, 2015 at 05:39:04PM +, Daniel P. Berrange wrote: > > > > On Thu, Nov 26,

Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for live migration

2015-11-27 Thread Daniel P. Berrange
On Fri, Nov 27, 2015 at 07:37:50PM +0800, 少合冯 wrote: > 2015-11-27 2:19 GMT+08:00 Daniel P. Berrange : > > > On Thu, Nov 26, 2015 at 05:39:04PM +, Daniel P. Berrange wrote: > > > On Thu, Nov 26, 2015 at 11:55:31PM +0800, 少合冯 wrote: > > > > 3. dynamically choose when to

Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for live migration

2015-11-27 Thread Koniszewski, Pawel
Y; Jin, > Yuntong > Subject: Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for > live migration > > On Fri, Nov 27, 2015 at 07:37:50PM +0800, 少合冯 wrote: > > 2015-11-27 2:19 GMT+08:00 Daniel P. Berrange <berra...@redhat.com>: > > > > >

Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for live migration

2015-11-27 Thread Koniszewski, Pawel
Eddie; Wang, Yong Y; Jin, > Yuntong > Subject: Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for > live migration > > On Fri, Nov 27, 2015 at 12:17:06PM +, Koniszewski, Pawel wrote: > > > -Original Message- > > > > > Do

Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for live migration

2015-11-27 Thread 金运通
for usage questions); ???; > Feng, > > > Shaohe; Xiao, Guangrong; Ding, Jian-feng; Dong, Eddie; Wang, Yong Y; > Jin, > > > Yuntong > > > Subject: Re: [openstack-dev] [nova] [RFC] how to enable xbzrle > compress for > > > live migration > > &g

Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for live migration

2015-11-27 Thread Daniel P. Berrange
On Fri, Nov 27, 2015 at 12:17:06PM +, Koniszewski, Pawel wrote: > > -Original Message- > > > > Doing this though, we still need a solution to the host OOM scenario > > > > problem. We can't simply check free RAM at start of migration and > > > > see if there's enough to spare for

Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for live migration

2015-11-27 Thread Daniel P. Berrange
List (not for usage questions); ???; Feng, > > Shaohe; Xiao, Guangrong; Ding, Jian-feng; Dong, Eddie; Wang, Yong Y; Jin, > > Yuntong > > Subject: Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for > > live migration > > > > On Fri, Nov 27, 2015 at

Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for live migration

2015-11-27 Thread 金运通
> > Cc: OpenStack Development Mailing List (not for usage questions); >> ???; Feng, >> > > Shaohe; Xiao, Guangrong; Ding, Jian-feng; Dong, Eddie; Wang, Yong Y; >> Jin, >> > > Yuntong >> > > Subject: Re: [openstack-dev] [nova] [RFC] how t

Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for live migration

2015-11-27 Thread Murray, Paul (HP Cloud)
> -Original Message- > From: Daniel P. Berrange [mailto:berra...@redhat.com] > Sent: 26 November 2015 17:58 > To: Carlton, Paul (Cloud Services) > Cc: 少合冯; OpenStack Development Mailing List (not for usage questions); > John Garbutt; pawel.koniszew...@intel.com; yuntong@intel.com; >

[openstack-dev] [nova] [RFC] how to enable xbzrle compress for live migration

2015-11-26 Thread 少合冯
Hi all, We want to support xbzrle compress for live migration. Now there are 3 options, 1. add the enable flag in nova.conf. such as a dedicated 'live_migration_compression=on|off" parameter in nova.conf. And nova simply enable it. seems not good. 2. add a parameters in live

Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for live migration

2015-11-26 Thread John Garbutt
On 26 November 2015 at 15:55, 少合冯 wrote: > Hi all, > We want to support xbzrle compress for live migration. > > Now there are 3 options, > 1. add the enable flag in nova.conf. > such as a dedicated 'live_migration_compression=on|off" parameter in > nova.conf. > And

Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for live migration

2015-11-26 Thread Daniel P. Berrange
On Thu, Nov 26, 2015 at 11:55:31PM +0800, 少合冯 wrote: > Hi all, > We want to support xbzrle compress for live migration. > > Now there are 3 options, > 1. add the enable flag in nova.conf. > such as a dedicated 'live_migration_compression=on|off" parameter in > nova.conf. > And nova simply

Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for live migration

2015-11-26 Thread John Garbutt
On 26 November 2015 at 17:39, Daniel P. Berrange wrote: > On Thu, Nov 26, 2015 at 11:55:31PM +0800, 少合冯 wrote: >> Hi all, >> We want to support xbzrle compress for live migration. >> >> Now there are 3 options, >> 1. add the enable flag in nova.conf. >> such as a

Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for live migration

2015-11-26 Thread Paul Carlton
On 26/11/15 15:55, 少合冯 wrote: Hi all, We want to support xbzrle compress for live migration. Now there are 3 options, 1. add the enable flag in nova.conf. such asa dedicated 'live_migration_compression=on|off" parameter in nova.conf. And nova simply enable it. seems not good. 2.

Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for live migration

2015-11-26 Thread Daniel P. Berrange
On Thu, Nov 26, 2015 at 05:49:50PM +, Paul Carlton wrote: > Seems to me the prevailing view is that we should get live migration to > figure out the best setting for > itself where possible. There was discussion of being able have a default > policy setting that will allow > the operator to

Re: [openstack-dev] [nova] [RFC] how to enable xbzrle compress for live migration

2015-11-26 Thread Daniel P. Berrange
On Thu, Nov 26, 2015 at 05:39:04PM +, Daniel P. Berrange wrote: > On Thu, Nov 26, 2015 at 11:55:31PM +0800, 少合冯 wrote: > > 3. dynamically choose when to activate xbzrle compress for live migration. > > This is the best. > > xbzrle really wants to be used if the network is not able