Re: What does i386 exactly mean?
From: Nicos Gollan (gtdev_at_spearhead.de)
Date: 01/31/05
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To: debian-user@lists.debian.org Date: Mon, 31 Jan 2005 16:03:44 +0100
On Monday January 31 2005 15:21, andras.lorincz@gmail.com wrote:
> The debian packages contain in their names i386. That means, as far as I
> know, that these programs are compiled to be able to run on at least on
> intel 386 processors. But does it also mean that if are run on newer
> machines, they run slower because don't exploit the capabilities of the
> newer processors?
Yes, that's essentially true.
> Is it worth to compile the packages before installing them, and if so are
> there any configurations to be made to get a more optimized binary?
For most packages, it really doesn't matter. It doesn't make much sense to
have a shell or about any other interactive program use MMX and SSE
extensions since those programs spend 99.9% of their time waiting for user
input.
There are some rare cases where a customized build will offer an advantage,
all of them CPU intensive programs like raytracers, graphics applications,
A/V codecs and games. Usually simply building a package from the debian
sources will apply the correct processor-specific extensions, but it doesn't
hurt to look through the debian/rules file before a build.
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