On Tue, Jul 21, 2009 at 1:42 PM, Doug Hunley<doug@hunley.homeip.net> wrote:
> Just wondering is the issue referenced in
> http://archives.postgresql.org/pgsql-performance/2005-11/msg00415.php
> is still present in 8.4 or if some tunable (or other) made the use of
> hyperthreading a non-issue. We're looking to upgrade our servers soon
> for performance reasons and am trying to determine if more cpus (no
> HT) or less cpus (with HT) are the way to go. Thx
I wouldn't recommend HT CPUs at all. I think your assumption, that HT
== CPU is wrong in first place.
Please read more about HT on intel's website.
--
GJ