Subj : hyperthreading in database-benchmarks
To   : comp.arch,comp.programming.threads
From : Oliver S.
Date : Tue Oct 11 2005 05:39 am

Has anyone found information on how much hyperthreading is able to improve the
performance of database-workloads (OTP as well as DWH)? As far as I know, data-
base systems have a un-usually high rate of cache misses and though suffer more
the latency-"problem" of current memory-subsystems. So I guess, databases will
profit more from hyperthreading than most other appications.

And to get some synthetic numbers on how hyperthreading is able to partitially
compensate the latency-problem, it would make sense to run a memory-latency
(with the usual pointer-chasing method) benchmark with two thrads; has anyone
found some numbers on this?

.