Re: [Xen-devel] [PATCH] xl cpupool-numa-split: reduce number of

To:	Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
Subject:	Re: [Xen-devel] [PATCH] xl cpupool-numa-split: reduce number of Dom0 vcpus
From:	Juergen Gross <juergen.gross@xxxxxxxxxxxxxx>
Date:	Tue, 15 Feb 2011 07:02:11 +0100
Cc:	George Dunlap <George.Dunlap@xxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date:	Mon, 14 Feb 2011 22:03:15 -0800
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On 02/14/11 16:45, Ian Jackson wrote:

Juergen Gross writes ("Re: [Xen-devel] [PATCH] xl cpupool-numa-split: reduce number 
of Dom0 vcpus"):

On 02/14/11 13:36, George Dunlap wrote:

Is looping 10 times really the best option?


Oops! Forgot the sleep(1) :-(
What about this one?


Um, are you sure ?  It still doesn't seem to have a sleep and you
haven't answered George's question ...


Sigh. Modifying the patch isn't enough, have to send the modified version...

Regarding the question: libxl_set_vcpuonline() is asynchronous. It will
trigger the offlining (or onlining) of vcpus, but the result is not checked
and will happen sometimes in the future, if ever. So some kind of timeout
seems to be a good idea. 10 seconds should be enough to do the work.

I added a failure exit if not all required vcpus are offlined.


Juergen

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Juergen Gross                 Principal Developer Operating Systems
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Re: [Xen-devel] [PATCH] xl cpupool-numa-split: reduce number of Dom0 vcp