Date: Sat, 08 Jan 2000 14:26:55 -0700 From: Wes Peters <wes@softweyr.com> To: Mohit Aron <aron@cs.rice.edu> Cc: freebsd-net@freebsd.org Subject: Re: performance of FreeBSD-current as SMP Message-ID: <3877AB9F.E132C12C@softweyr.com> References: <200001081602.KAA11960@cs.rice.edu>
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Mohit Aron wrote:
>
> >
> > An OS cannot make use of two or more prozessors, if you only use one
> > process and/or one thread for all stuff.
> >
> > You should at least create a new thread for every answer.
> >
>
> Good Lord! This is the second time now. I even SAID in my last two mails that
> there is only ONE processor. Theortically then, FreeBSD configured with/without
> SMP support shouldn't make any difference.
Not if defining SMP support causes the kernel to compile in all of the lock
acquisition and release code. Even if it simply does "if (ncpus < 2) return"
it would still impact performance somewhat.
--
"Where am I, and what am I doing in this handbasket?"
Wes Peters Softweyr LLC
wes@softweyr.com http://softweyr.com/
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