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Date:      Sat, 3 Nov 2001 05:15:54 -0000
From:      "Mark Hughes" <mark@dvdnews.co.uk>
To:        <freebsd-questions@FreeBSD.ORG>
Subject:   SMP kernel with 1 processor....
Message-ID:  <002d01c16426$b24648d0$0200a8c0@mark2>

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I know it sounds strange, but really it isn't that strange...

We're just setting up a web server, we're using a dual-processor server but
initially it will only have one processor in it. What we want to do really
is to set it up for two processors in a way that won't impact the
performance while it is only used with one, so we can add in a second
processor quickly and with minimal downtime when (and if) need be.

So, is it okay to compile a kernel with the following options uncommented,
and will it impact performance at all to do so:

# To make an SMP kernel, the next two are needed
#options        SMP                     # Symmetric MultiProcessor Kernel
#options        APIC_IO                 # Symmetric (APIC) I/O

Also, other than these two options, is there anything else that needs to be
enabled/disabled to work with SMP?

TIA,
Mark

--
Mark Hughes - DVD & Film Content Manager, Technical Officer
Digital Spy Ltd
http://www.digitalspy.co.uk/
Your number one source for digital media and entertainment news!



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