NAP mode on powerpc 970

[Troy Benjegerdes]

On Tue, Jan 20, 2004 at 10:34:21PM +1100, Anton Blanchard wrote:
>
>
> > When I talked to the HV team, they do not want to do this solution.
> > They are leaning towards another alternative, or having it done in FW so
> > the change does not need to be done in multiple places (e.g. Different
> > linux distros, and AIX).
>
> I disagree, we have to support both Apple and IBM products. Stashing
> stuff into our FW may be a good idea for AIX but we dont have to do it
> too.

More importantly... people doing HPC on IBM hardware will want to run
*WITHOUT* the overhead of the hypervisor. The hypervisor is a great idea
for virtualization for the enterprise area, but when you are trying to
get every last floating point operation out of a CPU you run 1 process
per CPU, and the operating system becomes pure overhead.



--
--------------------------------------------------------------------------
Troy Benjegerdes                'da hozer'                hozer at drgw.net


** Sent via the linuxppc64-dev mail list. See http://lists.linuxppc.org/