> If you are planning to run a typical multi-user
> type of environment, it is probably better to
> enable hyperthreading - this allows Oracle to
> see you have two (logical) CPUs and use some
> code paths that maximise concurrency.
>
> If a very large fraction of your work is going to
> be effectively single-user, single-stream, massive
> CPU crunching, then you may get some benefit
> by disabling hyperthreading as there seems to be
> a scheduling overhead at the CPU level when you
> hyperthread, and you don't want this if you are
> trying to run just one big CPU task.
>
Thanks Jonathan for you answer ...
Received on Fri May 20 2005 - 03:01:26 CDT
