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Re: [Qemu-devel] [RFC PATCH v2 10/12] mc: expose tunable parameter for c
From: |
Juan Quintela |
Subject: |
Re: [Qemu-devel] [RFC PATCH v2 10/12] mc: expose tunable parameter for checkpointing frequency |
Date: |
Tue, 11 Mar 2014 23:15:37 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) |
Eric Blake <address@hidden> wrote:
> On 02/18/2014 01:50 AM, address@hidden wrote:
>> From: "Michael R. Hines" <address@hidden>
> We're building up a LOT of migrate- tunable commands. Maybe it's time
> to think about building a more generic migrate-set-parameter, which
> takes both the name of the parameter to set and its value, so that a
> single command serves all parameters, instead of needing a proliferation
> of commands. Of course, for that to be useful, we also need a way to
> introspect which parameters can be tuned; whereas with the current
> approach of one command per parameter (well, 2 for set vs. get) the
> introspection is based on whether the command exists.
I asked to have that. My suggestion was that
migrate_set_capability auto-throotle on
So we could add it to new variables without extra change.
And I agree that having a way to read them, and ask what values they
have is a good idea.
Luiz, any good idea about how to do it through QMP?
Having the migration changes is easy, the problem is knowing how we want
them.
Later, Juan.