Re: [Qemu-devel] Live migration without bdrv_drain_all()

2016-10-12 Thread Stefan Hajnoczi
On Tue, Sep 27, 2016 at 10:48:48AM +0100, Daniel P. Berrange wrote: > On Mon, Aug 29, 2016 at 11:06:48AM -0400, Stefan Hajnoczi wrote: > > At KVM Forum an interesting idea was proposed to avoid > > bdrv_drain_all() during live migration. Mike Cui and Felipe Franciosi > > mentioned running at

Re: [Qemu-devel] Live migration without bdrv_drain_all()

2016-09-28 Thread Felipe Franciosi
> On 28 Sep 2016, at 10:03, Juan Quintela wrote: > > "Dr. David Alan Gilbert" wrote: >> * Stefan Hajnoczi (stefa...@gmail.com) wrote: >>> On Mon, Aug 29, 2016 at 06:56:42PM +, Felipe Franciosi wrote: Heya! > On 29 Aug 2016, at 08:06,

Re: [Qemu-devel] Live migration without bdrv_drain_all()

2016-09-28 Thread Daniel P. Berrange
On Wed, Sep 28, 2016 at 11:03:15AM +0200, Juan Quintela wrote: > "Dr. David Alan Gilbert" wrote: > > * Stefan Hajnoczi (stefa...@gmail.com) wrote: > >> On Mon, Aug 29, 2016 at 06:56:42PM +, Felipe Franciosi wrote: > >> > Heya! > >> > > >> > > On 29 Aug 2016, at 08:06,

Re: [Qemu-devel] Live migration without bdrv_drain_all()

2016-09-28 Thread Juan Quintela
"Dr. David Alan Gilbert" wrote: > * Stefan Hajnoczi (stefa...@gmail.com) wrote: >> On Mon, Aug 29, 2016 at 06:56:42PM +, Felipe Franciosi wrote: >> > Heya! >> > >> > > On 29 Aug 2016, at 08:06, Stefan Hajnoczi wrote: >> > > >> > > At KVM Forum an

Re: [Qemu-devel] Live migration without bdrv_drain_all()

2016-09-27 Thread Daniel P. Berrange
On Tue, Sep 27, 2016 at 10:27:12AM +0100, Stefan Hajnoczi wrote: > On Mon, Aug 29, 2016 at 06:56:42PM +, Felipe Franciosi wrote: > > Heya! > > > > > On 29 Aug 2016, at 08:06, Stefan Hajnoczi wrote: > > > > > > At KVM Forum an interesting idea was proposed to avoid > > >

Re: [Qemu-devel] Live migration without bdrv_drain_all()

2016-09-27 Thread Dr. David Alan Gilbert
* Stefan Hajnoczi (stefa...@gmail.com) wrote: > On Mon, Aug 29, 2016 at 06:56:42PM +, Felipe Franciosi wrote: > > Heya! > > > > > On 29 Aug 2016, at 08:06, Stefan Hajnoczi wrote: > > > > > > At KVM Forum an interesting idea was proposed to avoid > > > bdrv_drain_all()

Re: [Qemu-devel] Live migration without bdrv_drain_all()

2016-09-27 Thread Daniel P. Berrange
On Mon, Aug 29, 2016 at 11:06:48AM -0400, Stefan Hajnoczi wrote: > At KVM Forum an interesting idea was proposed to avoid > bdrv_drain_all() during live migration. Mike Cui and Felipe Franciosi > mentioned running at queue depth 1. It needs more thought to make it > workable but I want to

Re: [Qemu-devel] Live migration without bdrv_drain_all()

2016-09-27 Thread Stefan Hajnoczi
On Mon, Aug 29, 2016 at 06:56:42PM +, Felipe Franciosi wrote: > Heya! > > > On 29 Aug 2016, at 08:06, Stefan Hajnoczi wrote: > > > > At KVM Forum an interesting idea was proposed to avoid > > bdrv_drain_all() during live migration. Mike Cui and Felipe Franciosi > >

Re: [Qemu-devel] Live migration without bdrv_drain_all()

2016-08-29 Thread Felipe Franciosi
Heya! > On 29 Aug 2016, at 08:06, Stefan Hajnoczi wrote: > > At KVM Forum an interesting idea was proposed to avoid > bdrv_drain_all() during live migration. Mike Cui and Felipe Franciosi > mentioned running at queue depth 1. It needs more thought to make it > workable but

[Qemu-devel] Live migration without bdrv_drain_all()

2016-08-29 Thread Stefan Hajnoczi
At KVM Forum an interesting idea was proposed to avoid bdrv_drain_all() during live migration. Mike Cui and Felipe Franciosi mentioned running at queue depth 1. It needs more thought to make it workable but I want to capture it here for discussion and to archive it. bdrv_drain_all() is