Re: [Xen-devel] [PATCH] xl cpupool-numa-split: reduce number of Dom0 vcpus

[Juergen Gross <juergen.gross@xxxxxxxxxxxxxx>]

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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Attachment: xen-work.patch
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