Re: [Xen-devel] [PATCH 2/2] expert_mode: Add a new configuration option for expert users.

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Ian Campbell writes ("Re: [Xen-devel] [PATCH 2/2] expert_mode: Add a new 
configuration option for expert users."):
> On Fri, 2013-07-12 at 14:08 -0400, Konrad Rzeszutek Wilk wrote:
> > This could also be called 'seatbelt' option.
> > 
> > libxl has a variety of checks where it will fail out an operation
> > unless the user has provided an --force (or --ignore) parameter.
> > Currently one such check is for the 'vcpu-set' command which
> > will error out if the count of virtual cpus is greater than the
> > physical cpus. This parameter will ignore such checks and allow
> > the user to do the operations without the need for override flags.
> 
> Does this overlap  somewhat with various commands which individually
> take a -f(orce) option?

Clearly it should disable all of those -f's too.

> > +=item B<expert_mode=BOOLEAN>
> > +
> > +Do not act on host performed checks that might lead to performance
> > +degradations. Currently checks are made for following operations:
> > + - C<vcpu-set> - if the number of VCPUs set for a guest is higher than the
> > +   physical count the operation will error out.

I don't think this is a very coherent specification.  Surely it should
override "all -f options" or something similar.

I still don't see why you would want such a thing.

Ian.

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