Tom,
> What I think this means is that the kernel is scheduling the 2 processes
> onto 2 processors chosen-at-random, without awareness of whether those
> two processors are on the same chip (in the Xeon case) or have closer
> NUMA affinity (in the Opteron case).
That would be consistent with my experience with HT, and the reason why many
software vendors recommend disabling it. Not sure about NUMA.
--
Josh Berkus
Aglio Database Solutions
San Francisco