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Re: [Qemu-devel] [RFC PATCH RDMA support v1: 10/13] introduce new comman

From: Paolo Bonzini
Subject: Re: [Qemu-devel] [RFC PATCH RDMA support v1: 10/13] introduce new command migrate_check_for_zero
Date: Thu, 11 Apr 2013 16:17:30 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130311 Thunderbird/17.0.4

Il 11/04/2013 16:06, Michael R. Hines ha scritto:
>> My understanding is the issue is protocol compatibility,
>> not optimization. E.g. you can migrate to file, for each
>> new feature you need a way to disable it to stay compatible.
> Ok, understood.
> I would be happy to add a check for the other migration URI
> protocols (like 'unix', 'tcp', etc) which says rejects disabling
> the zero page checking only if the URI is for rdma.
> Would that be OK?

I would like to see is_dup_page() on top of a "perf" profile for a
real-world scenario, and throughput numbers for the same real-world
scenario with/without is_dup_page().  Once you show that, yes.


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