[AIM] SMP now working

[Marcel Moolenaar]

On Sep 16, 2008, at 1:40 PM, Peter Grehan wrote:

>> I managed to have some "quality" time with my Xserve over the
>> weekend and the outstanding SMP problems have been resolved.
>
> Great stuff Marcel ! How does a buildworld -j (> 1) go ?

All the way to the end :-)

Seriously: I haven't done any timings yet. I'm mostly just upping
the load to see how stable it is. A -j4 completes and a -j8 is in
progress. If that completes I'll be doing UP vs. SMP comparisons.

There's a visible speedup, so things look good. I hope to have
hard data next week or so.

Random notes:
o  It should be safe to enable interrupt delivery to all CPUs
    and play around with programming the TPR of the CPUs.
o  SMP works with 4BSD only, but raj@ just told me he has ULE
    support for SMP.
o  We should take advantage of the OpenPIC timers to driver
    hardclock, etc.
o  Cache prefetching hasn't been enabled on the AP yet.

-- 
Marcel Moolenaar
xcllnt at mac.com