Multi-processor information

[Alfred]

It works automagically (once you have MP support in the kernel). Processed
(threads) are assigned to different CPU's. With apache, each child thread
would be able to be on a different CPU, which allows sharing of the load
across processors. Any program which runs multiple processes (or threads)
will run MP under linux. Single threaded programs will not :)

----- Original Message -----
From: "Daniel McNamara" <daniel at cit-linux.net>
To: "Canberra Linux User Group" <linux at samba.org>
Sent: Sunday, January 20, 2002 3:35 PM
Subject: Multi-processor information


> Hi Guys,
>
> Well over the weekend I became the owner of a dual PII machine. I'm just a
> little confused about how multi-processor systems work so if I could get
> some clarifications that would be great.
>
> I understand that to take advantage of the dual processors my kernel will
> need multi-processor support built in. What I don't fully understand is
how
> applications will take advantage of them. Do they just pass calls to the
> kernel and it takes care of it? Or does the program itself also have to be
> compiled with support for multi-processing?
>
> To give a specific example I intend to turn this machine into a web server
> for my work place. With Apache, will I need to compile from source and
> change a flag to let it know that it will be running on a multi-processor
> system? Or will it just be fine as is and the kernel will work it out?
>
> I have done a quick search on the Apache web site but not really found
> anything to point in the right direction. If anyone could supply links or
> general information on this it would great.
>
> Cheers
>
> Daniel
>
>