Re: Any way to get apt or dpkg to compile sources for SMP automatically?
however, that means forking process out (to some extent) and forking another
process does nothing except giving an additional overhead to machine.
generally very few machine have advantage on compiling SMP support into
applications - that's because as always there, as usual, won't have less
than 2 application running on the same machine =)
Calvin "Lamer"
Uncertified Linux Player
Email: evil@debian.org.hk
----- Original Message -----
From: "Joey Hess" <joey@kitenet.net>
To: "John Foster" <jfoster@augustmail.com>
Cc: "Debian-User List" <debian-user@lists.debian.org>
Sent: Tuesday, July 03, 2001 9:35 AM
Subject: Re: Any way to get apt or dpkg to compile sources for SMP
automatically?
> John Foster wrote:
> > What I'm trying to do is totally optimize my software for dual processor
> > systems. I want to be able to use apt-get sources xxx.deb to download
> > and automatically compile the application with SMP support and to
> > optimize it for various pentium or other processors. This does not mean
> > just the kernel I mean all of the software that I use.
>
> Very little software with the exception of the kernel cares at all how
> many CPU's you have, no matter how it is compiled.
>
> Linux allows each process to run on only one processor at a time. If you
> have two CPU's and only one busy process, half of your system is being
> wasted. If this is a typical load, you should have gotten a faster CPU
> instead of spending money on SMP.
>
> If your typical system usage involves having the computer do more than
> one thing at once, then SMP can be a benefit, since the running
> processes are split amoung the available CPU's.
>
> A few programs, like make, allow more efficient use of multiprocessor
> machines by providing options that can cause them to run two or more
> processes, each which does part of the work. With make for example, use
> make -j 2 (or -j 4 or whatever).
>
> --
> see shy jo
>
>
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