[Xen-devel] xm create weight=x

["G. Milos" <gm281@xxxxxxxxxxxxxxxx>]

I've just added a new option to the xm create command. The weight of a 
domain (CPU share) can be set with 'weight=something' parameter 
(something can be a float). It
also works if weight is specified in the config file (xmdefaults).

Schedulers which do not have notion of weight (e.g. RRobin) ignore the 
weight argument.
For the default scheduler (BVT) the weights are inversed and then stored 
in an integer field (mcu_advance = 10 / weight). To achieve good
resolution it is therefore good to use relativelly small walues for the 
weight parameter.
Finally - the scheduling parameters can be changed using:
xm bvt
xm fbvt
xm rrobin
xm atropos (if it worked)
calls, depending on which scheduler is currently used.

All the test reports are welcomed, directly to me or to the list.

Cheers
Gregor



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