Hyperthreading Kernel Configuration - 5.1

C. Stephen Gunn csg at waterspout.com
Sat Oct 4 17:05:44 PDT 2003


Marc G. Fournier (scrappy at hub.org) likely uttered:

> My understanding is that the speed improvements (or degradation) depend on
> the use of the machine ... for instance, I've heard that a high I/O server
> will be slower with HTT enabled, and, from my experience with one such, it
> is so ... I'm not sure what circumstances would show improvements though

Most likly the other end of the spectrum.  I've seem some transactional
loads that require modest compute (say .2 seconds) that seem to do quite
well on a Hyperthread box.

 - Steve


More information about the freebsd-hardware mailing list