Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-19 Thread Igor Mammedov
On Sun, 10 Mar 2019 11:14:08 +0100 Markus Armbruster wrote: > Daniel P. Berrangé writes: > > > On Mon, Mar 04, 2019 at 12:45:14PM +0100, Markus Armbruster wrote: > >> Daniel P. Berrangé writes: > >> > >> > On Mon, Mar 04, 2019 at 08:13:53AM +0100, Markus Armbruster wrote: > >> >> If we

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-18 Thread Igor Mammedov
On Mon, 4 Mar 2019 14:52:30 +0100 Igor Mammedov wrote: > On Fri, 1 Mar 2019 18:01:52 + > "Dr. David Alan Gilbert" wrote: > > > * Igor Mammedov (imamm...@redhat.com) wrote: > > > On Fri, 1 Mar 2019 15:49:47 + > > > Daniel P. Berrangé wrote: > > > > > > > On Fri, Mar 01, 2019 at 0

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-14 Thread Igor Mammedov
On Sun, 10 Mar 2019 11:16:33 +0100 Markus Armbruster wrote: > Daniel P. Berrangé writes: > > > On Wed, Mar 06, 2019 at 08:03:48PM +0100, Igor Mammedov wrote: > >> On Mon, 4 Mar 2019 16:35:16 + > >> Daniel P. Berrangé wrote: > >> > >> > On Mon, Mar 04, 2019 at 05:20:13PM +0100, Michal

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-10 Thread Markus Armbruster
Daniel P. Berrangé writes: > On Wed, Mar 06, 2019 at 08:03:48PM +0100, Igor Mammedov wrote: >> On Mon, 4 Mar 2019 16:35:16 + >> Daniel P. Berrangé wrote: >> >> > On Mon, Mar 04, 2019 at 05:20:13PM +0100, Michal Privoznik wrote: >> > > We couldn't have done that. How we would migrate from ol

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-10 Thread Markus Armbruster
Daniel P. Berrangé writes: > On Mon, Mar 04, 2019 at 12:45:14PM +0100, Markus Armbruster wrote: >> Daniel P. Berrangé writes: >> >> > On Mon, Mar 04, 2019 at 08:13:53AM +0100, Markus Armbruster wrote: >> >> If we deprecate outdated NUMA configurations now, we can start rejecting >> >> them with

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-07 Thread Daniel P . Berrangé
On Wed, Mar 06, 2019 at 08:03:48PM +0100, Igor Mammedov wrote: > On Mon, 4 Mar 2019 16:35:16 + > Daniel P. Berrangé wrote: > > > On Mon, Mar 04, 2019 at 05:20:13PM +0100, Michal Privoznik wrote: > > > We couldn't have done that. How we would migrate from older qemu? > > > > > > Anyway, now t

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-06 Thread Igor Mammedov
On Mon, 4 Mar 2019 17:20:13 +0100 Michal Privoznik wrote: > On 3/4/19 3:24 PM, Daniel P. Berrangé wrote: > > On Mon, Mar 04, 2019 at 03:16:41PM +0100, Igor Mammedov wrote: > >> On Mon, 4 Mar 2019 12:39:08 + > >> Daniel P. Berrangé wrote: > >> > >>> On Mon, Mar 04, 2019 at 01:25:07PM +0100, I

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-06 Thread Igor Mammedov
On Mon, 4 Mar 2019 16:35:16 + Daniel P. Berrangé wrote: > On Mon, Mar 04, 2019 at 05:20:13PM +0100, Michal Privoznik wrote: > > On 3/4/19 3:24 PM, Daniel P. Berrangé wrote: > > > On Mon, Mar 04, 2019 at 03:16:41PM +0100, Igor Mammedov wrote: > > > > On Mon, 4 Mar 2019 12:39:08 + > > > > D

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-04 Thread Daniel P . Berrangé
On Mon, Mar 04, 2019 at 05:20:13PM +0100, Michal Privoznik wrote: > On 3/4/19 3:24 PM, Daniel P. Berrangé wrote: > > On Mon, Mar 04, 2019 at 03:16:41PM +0100, Igor Mammedov wrote: > > > On Mon, 4 Mar 2019 12:39:08 + > > > Daniel P. Berrangé wrote: > > > > > > > On Mon, Mar 04, 2019 at 01:25:0

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-04 Thread Dr. David Alan Gilbert
* Michal Privoznik (mpriv...@redhat.com) wrote: > On 3/4/19 3:24 PM, Daniel P. Berrangé wrote: > > On Mon, Mar 04, 2019 at 03:16:41PM +0100, Igor Mammedov wrote: > > > On Mon, 4 Mar 2019 12:39:08 + > > > Daniel P. Berrangé wrote: > > > > > > > On Mon, Mar 04, 2019 at 01:25:07PM +0100, Igor Ma

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-04 Thread Daniel P . Berrangé
On Mon, Mar 04, 2019 at 05:12:40PM +0100, Michal Privoznik wrote: > On 3/4/19 4:19 PM, Igor Mammedov wrote: > > > Then I'd guess that most VMs end up with default '-numa node,mem' > > which by design can produce only fake NUMA without ability to manage > > guest RAM on host side. So such VMs aren'

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-04 Thread Michal Privoznik
On 3/4/19 3:24 PM, Daniel P. Berrangé wrote: On Mon, Mar 04, 2019 at 03:16:41PM +0100, Igor Mammedov wrote: On Mon, 4 Mar 2019 12:39:08 + Daniel P. Berrangé wrote: On Mon, Mar 04, 2019 at 01:25:07PM +0100, Igor Mammedov wrote: On Mon, 04 Mar 2019 08:13:53 +0100 Markus Armbruster wrote:

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-04 Thread Michal Privoznik
On 3/4/19 4:19 PM, Igor Mammedov wrote: Then I'd guess that most VMs end up with default '-numa node,mem' which by design can produce only fake NUMA without ability to manage guest RAM on host side. So such VMs aren't getting performance benefits or worse run with performance regression (due to

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-04 Thread Igor Mammedov
On Mon, 4 Mar 2019 15:28:11 + Daniel P. Berrangé wrote: > On Mon, Mar 04, 2019 at 12:45:14PM +0100, Markus Armbruster wrote: > > Daniel P. Berrangé writes: > > > > > On Mon, Mar 04, 2019 at 08:13:53AM +0100, Markus Armbruster wrote: > > >> If we deprecate outdated NUMA configurations no

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-04 Thread Daniel P . Berrangé
On Mon, Mar 04, 2019 at 12:45:14PM +0100, Markus Armbruster wrote: > Daniel P. Berrangé writes: > > > On Mon, Mar 04, 2019 at 08:13:53AM +0100, Markus Armbruster wrote: > >> If we deprecate outdated NUMA configurations now, we can start rejecting > >> them with new machine types after a suitable

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-04 Thread Igor Mammedov
On Mon, 4 Mar 2019 14:24:32 + Daniel P. Berrangé wrote: > On Mon, Mar 04, 2019 at 03:16:41PM +0100, Igor Mammedov wrote: > > On Mon, 4 Mar 2019 12:39:08 + > > Daniel P. Berrangé wrote: > > > > > On Mon, Mar 04, 2019 at 01:25:07PM +0100, Igor Mammedov wrote: > > > > On Mon, 04 Mar 20

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-04 Thread Igor Mammedov
On Mon, 4 Mar 2019 15:24:28 +0100 Michal Privoznik wrote: > [Thanks Igor for bringing this onto my radar. I don't follow qemu-devel > that close] > > On 3/4/19 11:19 AM, Daniel P. Berrangé wrote: > > On Mon, Mar 04, 2019 at 08:13:53AM +0100, Markus Armbruster wrote: > >> Daniel P. Berrangé w

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-04 Thread Michal Privoznik
On 3/4/19 3:16 PM, Igor Mammedov wrote: On Mon, 4 Mar 2019 12:39:08 + Daniel P. Berrangé wrote: On Mon, Mar 04, 2019 at 01:25:07PM +0100, Igor Mammedov wrote: On Mon, 04 Mar 2019 08:13:53 +0100 Markus Armbruster wrote: Daniel P. Berrangé writes: On Fri, Mar 01, 2019 at 06:33:2

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-04 Thread Daniel P . Berrangé
On Mon, Mar 04, 2019 at 03:16:41PM +0100, Igor Mammedov wrote: > On Mon, 4 Mar 2019 12:39:08 + > Daniel P. Berrangé wrote: > > > On Mon, Mar 04, 2019 at 01:25:07PM +0100, Igor Mammedov wrote: > > > On Mon, 04 Mar 2019 08:13:53 +0100 > > > Markus Armbruster wrote: > > > > > > > Daniel P. B

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-04 Thread Michal Privoznik
[Thanks Igor for bringing this onto my radar. I don't follow qemu-devel that close] On 3/4/19 11:19 AM, Daniel P. Berrangé wrote: On Mon, Mar 04, 2019 at 08:13:53AM +0100, Markus Armbruster wrote: Daniel P. Berrangé writes: On Fri, Mar 01, 2019 at 06:33:28PM +0100, Igor Mammedov wrote: On

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-04 Thread Igor Mammedov
On Mon, 4 Mar 2019 12:39:08 + Daniel P. Berrangé wrote: > On Mon, Mar 04, 2019 at 01:25:07PM +0100, Igor Mammedov wrote: > > On Mon, 04 Mar 2019 08:13:53 +0100 > > Markus Armbruster wrote: > > > > > Daniel P. Berrangé writes: > > > > > > > On Fri, Mar 01, 2019 at 06:33:28PM +0100, Igo

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-04 Thread Igor Mammedov
On Fri, 1 Mar 2019 18:01:52 + "Dr. David Alan Gilbert" wrote: > * Igor Mammedov (imamm...@redhat.com) wrote: > > On Fri, 1 Mar 2019 15:49:47 + > > Daniel P. Berrangé wrote: > > > > > On Fri, Mar 01, 2019 at 04:42:15PM +0100, Igor Mammedov wrote: > > > > The parameter allows to confi

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-04 Thread Daniel P . Berrangé
On Mon, Mar 04, 2019 at 01:25:07PM +0100, Igor Mammedov wrote: > On Mon, 04 Mar 2019 08:13:53 +0100 > Markus Armbruster wrote: > > > Daniel P. Berrangé writes: > > > > > On Fri, Mar 01, 2019 at 06:33:28PM +0100, Igor Mammedov wrote: > > >> On Fri, 1 Mar 2019 15:49:47 + > > >> Daniel P. Be

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-04 Thread Igor Mammedov
On Mon, 04 Mar 2019 08:13:53 +0100 Markus Armbruster wrote: > Daniel P. Berrangé writes: > > > On Fri, Mar 01, 2019 at 06:33:28PM +0100, Igor Mammedov wrote: > >> On Fri, 1 Mar 2019 15:49:47 + > >> Daniel P. Berrangé wrote: > >> > >> > On Fri, Mar 01, 2019 at 04:42:15PM +0100, Igor Ma

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-04 Thread Markus Armbruster
Daniel P. Berrangé writes: > On Mon, Mar 04, 2019 at 08:13:53AM +0100, Markus Armbruster wrote: >> Daniel P. Berrangé writes: >> >> > On Fri, Mar 01, 2019 at 06:33:28PM +0100, Igor Mammedov wrote: >> >> On Fri, 1 Mar 2019 15:49:47 + >> >> Daniel P. Berrangé wrote: >> >> >> >> > On Fri, Ma

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-04 Thread Daniel P . Berrangé
On Mon, Mar 04, 2019 at 08:13:53AM +0100, Markus Armbruster wrote: > Daniel P. Berrangé writes: > > > On Fri, Mar 01, 2019 at 06:33:28PM +0100, Igor Mammedov wrote: > >> On Fri, 1 Mar 2019 15:49:47 + > >> Daniel P. Berrangé wrote: > >> > >> > On Fri, Mar 01, 2019 at 04:42:15PM +0100, Igor M

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-03 Thread Markus Armbruster
Daniel P. Berrangé writes: > On Fri, Mar 01, 2019 at 06:33:28PM +0100, Igor Mammedov wrote: >> On Fri, 1 Mar 2019 15:49:47 + >> Daniel P. Berrangé wrote: >> >> > On Fri, Mar 01, 2019 at 04:42:15PM +0100, Igor Mammedov wrote: >> > > The parameter allows to configure fake NUMA topology where

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-01 Thread Dr. David Alan Gilbert
* Igor Mammedov (imamm...@redhat.com) wrote: > On Fri, 1 Mar 2019 15:49:47 + > Daniel P. Berrangé wrote: > > > On Fri, Mar 01, 2019 at 04:42:15PM +0100, Igor Mammedov wrote: > > > The parameter allows to configure fake NUMA topology where guest > > > VM simulates NUMA topology but not actuall

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-01 Thread Daniel P . Berrangé
On Fri, Mar 01, 2019 at 06:33:28PM +0100, Igor Mammedov wrote: > On Fri, 1 Mar 2019 15:49:47 + > Daniel P. Berrangé wrote: > > > On Fri, Mar 01, 2019 at 04:42:15PM +0100, Igor Mammedov wrote: > > > The parameter allows to configure fake NUMA topology where guest > > > VM simulates NUMA topolo

Re: [libvirt] [Qemu-devel] [PATCH 1/2] numa: deprecate 'mem' parameter of '-numa node' option

2019-03-01 Thread Igor Mammedov
On Fri, 1 Mar 2019 15:49:47 + Daniel P. Berrangé wrote: > On Fri, Mar 01, 2019 at 04:42:15PM +0100, Igor Mammedov wrote: > > The parameter allows to configure fake NUMA topology where guest > > VM simulates NUMA topology but not actually getting a performance > > benefits from it. The same or