Justin <justin(at)emproshunts(dot)com> writes:
> From every thing i have read about Hyper Threading, it should be just
> turned off.
Depends entirely on what you're doing. I usually leave it turned on
because compiling Postgres from source is measurably faster with it
than without it on my dual-Xeon box. I'd recommend experimenting
with your own workload before making any decisions.
regards, tom lane