Re: Should one CPU(Hyper-Threading) machine install SMP kernel?
On Mon, 2005-09-26 at 10:03 +0100, Dick Davies wrote:
> On 25 Sep 2005 23:23:48 -0700, James He <email@example.com> wrote:
> > Should one CPU(Hyper-Threading) machine use SMP kernel, or stick to a
> > regular kernel?
> Yup, use SMP. I get 2 cpus in cpuinfo that way (although top doesn't
> see them for
> some reason).
Whereas, if it does support HT, I'd say it depends on what you're using
the machine for, which kernel you've got...
eg disable HT if it's a 2.4 kernel and you want to run MPI since the
scheduler doesn't seem up to the job (and it'll go slower on 2 processes
with HT on than on one with HT off)