From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dario Faggioli <dario.faggioli@citrix.com>
Subject: Re: [PATCH RFC v2 5/7] libxl/vNUMA: VM config parsing
 functions
Date: Thu, 10 Oct 2013 10:38:13 +0200
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To: Elena Ufimtseva <ufimtseva@gmail.com>
Cc: Ian Campbell <Ian.Campbell@citrix.com>, Li Yechen <lccycc123@gmail.com>, George Dunlap <George.Dunlap@eu.citrix.com>, Stefano Stabellini <stefano.stabellini@eu.citrix.com>, Ian Jackson <ian.jackson@eu.citrix.com>, "xen-devel@lists.xen.org" <xen-devel@lists.xen.org>, sw@linux.com
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On mer, 2013-10-09 at 14:45 -0400, Elena Ufimtseva wrote:
> The other simplified way is to specify only two values. One for the
> distance between same node and another between not the same nodes.
> like this:
>=20
> vdistance =3D [10, 20]
>=20
Mmm... I like it...

> and this will expand to
>=20
> 10 20 20 20
> 20 10 20 20
> 20 20 10 20
> 20 20 20 10
>=20
> for 4 nodes.
>
Nice.

> There is a loss in flexibility of course and other parsing can remain
> the same or as George proposed, using lists.
>=20
Well, can't we support both? I mean, even if you configure 2 nodes you'd
need 4 values, right? So, there are no cases where you only specify 2
values.

Well, let's make it like this: if you provide 2 values, it acts as you
say above; otherwise you have to specify all of them. If you should have
specified 4 (or 16) values, and you specify, say, 3 (or, say, 10) all
the unspecified ones will have the same default value (e.g., 10). How do
you like this?

Dario

--=20
<<This happens because I choose it to happen!>> (Raistlin Majere)
-----------------------------------------------------------------
Dario Faggioli, Ph.D, http://about.me/dario.faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)


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