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Re: [Xen-devel] Huge page sizes?

Pasi & Jan,

Thanks for the responses.  I passed on Pasi's info to the attendee who intended to check it out in the "lab" on the show floor.  Jim Fehlig will likely be assisting the gentleman in the inquiry.

Thanks again.


On Nov 13, 2013 12:55 PM, "Jan Beulich" <JBeulich@xxxxxxxx> wrote:
>>> On 13.11.13 at 16:31, Russ Pavlicek <russell.pavlicek@xxxxxxxxxxxxxx> wrote:
> A question was posed during a session at SUSECon:
> Does Xen support "huge page sizes"?
> I have no more detail than that at the moment.  If anyone happens to have
> an answer within the next hour, I should be able to relay the answer to the
> man who is sitting in the room near me.  Thanks.

The hypervisor for itself does, and for HVM guests they're supported
too (and then equally for the upcoming PVH ones).

There's an optional feature (of unknown quality) to also allow the use
of huge pages in PV guests (requiring at least a balloon driver in the
guest that's aware of this), but personally I'd recommend staying
away from that.


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