Re: [Xen-devel] [Planning for Xen-4.6] Migration v2

2014-11-27 Thread Ian Campbell
On Wed, 2014-11-26 at 17:39 +, Andrew Cooper wrote: > > IMHO this is fine. It essentially means that for xl users there is some > > delayed gratification wrt the promise of migration between non-alike > > dom0s. The migration from 4.5(legacy)->4.6(v2) won't support such > > migrations, but the

Re: [Xen-devel] [Planning for Xen-4.6] Migration v2

2014-11-27 Thread Hongyang Yang
在 11/26/2014 03:54 AM, Andrew Cooper 写道: Hello, The purpose of this email is to plan how to progress the migrationv2 series through to being merged. I believe I have CC'd everyone with a specific interest in this area, but apologies if I have missed anyone. Migration v2 is in exclusive use i

Re: [Xen-devel] [Planning for Xen-4.6] Migration v2

2014-11-26 Thread Andrew Cooper
On 26/11/14 16:50, Ian Campbell wrote: > On Tue, 2014-11-25 at 19:54 +, Andrew Cooper wrote: >> 3) Libxl and xl support >> >> Libxl and xl have as many problems as the libxc code did when it comes >> to incompatible wire formats and layering violations. In particular, it >> is not possible to

Re: [Xen-devel] [Planning for Xen-4.6] Migration v2

2014-11-26 Thread Andrew Cooper
On 26/11/14 16:44, Ian Campbell wrote: > On Tue, 2014-11-25 at 19:54 +, Andrew Cooper wrote: >> There is an xl/libxl part of the migration v2 series which attempts to >> rectify this all in one go, as there is no alternative way of doing so. >> The libxl section of the series is certainly not

Re: [Xen-devel] [Planning for Xen-4.6] Migration v2

2014-11-26 Thread Ian Campbell
On Tue, 2014-11-25 at 19:54 +, Andrew Cooper wrote: > 3) Libxl and xl support > > Libxl and xl have as many problems as the libxc code did when it comes > to incompatible wire formats and layering violations. In particular, it > is not possible to determine the bitness of the sending > libxl-

Re: [Xen-devel] [Planning for Xen-4.6] Migration v2

2014-11-26 Thread Ian Campbell
On Tue, 2014-11-25 at 19:54 +, Andrew Cooper wrote: > There is an xl/libxl part of the migration v2 series which attempts to > rectify this all in one go, as there is no alternative way of doing so. > The libxl section of the series is certainly not yet complete, but > specific queries to the

Re: [Xen-devel] [Planning for Xen-4.6] Migration v2

2014-11-26 Thread Olaf Hering
On Wed, Nov 26, Andrew Cooper wrote: > It is certainly my hope going forward that different knobs can be > exposed. One thing I think would be interesting is some proper > calculations of the delta in the dirty set, and offering a threshold > which chooses between "pause and complete" or "abort t

Re: [Xen-devel] [Planning for Xen-4.6] Migration v2

2014-11-26 Thread Andrew Cooper
On 26/11/14 08:09, Olaf Hering wrote: > On Tue, Nov 25, Andrew Cooper wrote: > >> The purpose of this email is to plan how to progress the migrationv2 >> series through to being merged. I believe I have CC'd everyone with a >> specific interest in this area, but apologies if I have missed anyone.

Re: [Xen-devel] [Planning for Xen-4.6] Migration v2

2014-11-26 Thread Olaf Hering
On Tue, Nov 25, Andrew Cooper wrote: > The purpose of this email is to plan how to progress the migrationv2 > series through to being merged. I believe I have CC'd everyone with a > specific interest in this area, but apologies if I have missed anyone. While you mow that lawn, did you guys think