Subject: Re: Multiprocessor with NetBSD ?
To: Erik E. Fair <firstname.lastname@example.org>
From: Jason R Thorpe <email@example.com>
Date: 06/03/2001 07:23:09
On Sun, Jun 03, 2001 at 03:04:30AM -0700, Erik E. Fair wrote:
> Jason, just to be accurate, does NetBSD/alpha have a sufficiently
> re-entrant kernel that it can run simultaneously on all processors,
> as required? Do we do interrupt processing on all processors?
General I/O interrupts, no. Clock interrupts, yes.
> So far as I can tell, no one in the open-source OS world has SMP
> going yet. Some have a form of MP working, and are being very loose
> with the term "Symmetric Multiprocessing" in the furtherance of their
So, "symmetric multiprocessing", as I have always understood the term,
simply refers to the ability for all processors to run general kernel
code, not necessarily concurrently. Please correct me if I am simply
confused on this point :-)
-- Jason R. Thorpe <firstname.lastname@example.org>