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Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protoc
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation |
Date: |
Thu, 11 Apr 2013 18:58:11 +0300 |
On Thu, Apr 11, 2013 at 05:47:53PM +0200, Paolo Bonzini wrote:
> Il 11/04/2013 17:46, Michael S. Tsirkin ha scritto:
> > > Ok, let's keep it simple. The only two things we need are:
> > >
> > > 1) remove the patch to disable is_dup_page
> > >
> > > 2) rename the transport to "x-rdma" (just in migration.c)
> > >
> > > Both things together let us keep it safe for a release or two. Let's
> > > merge this thing.
> >
> > I would drop the chunk based thing too. Besides being slow, it turns
> > out that it pins all memory anyway. So no memory overcommit.
>
> It doesn't pin zero pages. Those are never transmitted (it's a recent
> change). So pages that are ballooned at the beginning of migration, and
> remain ballooned throughout, will never be pinned.
>
> Paolo
Of course Michael says it's slow unless you disable zero page detection,
and then I'm guessing it does?
--
MST
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, (continued)
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Paolo Bonzini, 2013/04/11
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael R. Hines, 2013/04/11
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael S. Tsirkin, 2013/04/11
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael R. Hines, 2013/04/11
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael S. Tsirkin, 2013/04/11
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael R. Hines, 2013/04/11
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael R. Hines, 2013/04/11
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Paolo Bonzini, 2013/04/11
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael S. Tsirkin, 2013/04/11
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Paolo Bonzini, 2013/04/11
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation,
Michael S. Tsirkin <=
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael R. Hines, 2013/04/11
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael R. Hines, 2013/04/12
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Paolo Bonzini, 2013/04/12
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael R. Hines, 2013/04/12
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael S. Tsirkin, 2013/04/11
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael R. Hines, 2013/04/11
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael S. Tsirkin, 2013/04/11
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael R. Hines, 2013/04/11
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael R. Hines, 2013/04/11
[Qemu-devel] [RFC PATCH RDMA support v5: 02/12] check for CONFIG_RDMA, mrhines, 2013/04/08