Re: SMP question

From: Artemio (
Date: Wed Jun 11 2003 - 15:13:30 EST


> > How much performance will I loose this way? Is SMP *THAT* critical?
> You will lose about half your CPU power.

Hmmm... So, you mean uni-processor Linux kernel can't see two processors as
one "big" processor?

> > - Run all tasks in a usual way, no hard realtime, but with SMP support.
> >
> > What would you suggest?
> If you don't install a kernel with SMP support, you might as well remove
> one processor.


> > Also, if I turn hyperthreading off, how will it influence the
> > system with SMP
> > support? Without SMP support?
> In a system with more than one physical CPU, hyperthreading is not that
> big of a performance boost.

Okay, I will try turning hyperthreding off and see if RTLinux keeps hanging
the machine.

Thanks for your reply!

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