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Re: [Qemu-devel] [PATCH] migration: use XBZRLE only after bulk stage
From: |
Eric Blake |
Subject: |
Re: [Qemu-devel] [PATCH] migration: use XBZRLE only after bulk stage |
Date: |
Fri, 01 Mar 2013 07:08:55 -0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130219 Thunderbird/17.0.3 |
On 03/01/2013 07:06 AM, Peter Lieven wrote:
>> Do you have any benchmark numbers? At any rate, the explanation seems
>> sound, so a benchmark should show this.
>
> Do you have a particular test pattern in mind? If there is nothing going on
> in the VM XBZRLE will not be better than normal copy at all.
>
> Otherwise you will have N xbzrle misses and 0 xbzrle pages without the
> patch
> and 0 xbzrle misses and 0 xbzrle pages with the patch.
How about a migration of a guest running the synthetic r/w load
generator in docs/xbzrle.txt?
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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- [Qemu-devel] [PATCH] migration: use XBZRLE only after bulk stage, Peter Lieven, 2013/03/01
- Re: [Qemu-devel] [PATCH] migration: use XBZRLE only after bulk stage, Eric Blake, 2013/03/01
- Re: [Qemu-devel] [PATCH] migration: use XBZRLE only after bulk stage, Paolo Bonzini, 2013/03/01
- Re: [Qemu-devel] [PATCH] migration: use XBZRLE only after bulk stage, Peter Lieven, 2013/03/01
- Re: [Qemu-devel] [PATCH] migration: use XBZRLE only after bulk stage,
Eric Blake <=
- Re: [Qemu-devel] [PATCH] migration: use XBZRLE only after bulk stage, Peter Lieven, 2013/03/01
- Re: [Qemu-devel] [PATCH] migration: use XBZRLE only after bulk stage, Eric Blake, 2013/03/01
- Re: [Qemu-devel] [PATCH] migration: use XBZRLE only after bulk stage, Peter Lieven, 2013/03/01
- Re: [Qemu-devel] [PATCH] migration: use XBZRLE only after bulk stage, Eric Blake, 2013/03/01
- Re: [Qemu-devel] [PATCH] migration: use XBZRLE only after bulk stage, Peter Lieven, 2013/03/04
- Re: [Qemu-devel] [PATCH] migration: use XBZRLE only after bulk stage, Paolo Bonzini, 2013/03/04
- Re: [Qemu-devel] [PATCH] migration: use XBZRLE only after bulk stage, Peter Lieven, 2013/03/04
- Re: [Qemu-devel] [PATCH] migration: use XBZRLE only after bulk stage, Orit Wasserman, 2013/03/04