Re: [Xen-devel] credit2 data structures

[Keir Fraser <keir@xxxxxxx>]

On 13/10/2011 11:11, "George Dunlap" <George.Dunlap@xxxxxxxxxxxxx> wrote:

> For one thing, the number of runqueues in credit2 is actually meant to
> be smaller than the number of logical cpus -- it's meant to be one per
> L2 cache, which should have between 2 and 8 logical cpus, depending on
> the architecture.  I just put NR_CPUS because it was easier to get
> working.  Making that an array of pointers, which is allocated on an
> as-needed basis, should reduce that requirement a great deal.

That would suffice. If we can put per-cpu stuff in the per_cpu() data area
then even better. The fact that credit2 burns a couple of kB per CPU isn't a
problem at all, as long as it does it only for active CPUs.

 -- Keir



_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel