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Date:      Thu, 12 Apr 2001 16:20:05 +0100
From:      Mike Doyle <relyod@cooperationireland.org>
To:        freebsd-chat@freebsd.org
Subject:   Question regarding compilers etc.
Message-ID:  <3.0.5.32.20010412162005.008c1d70@199.107.2.1>

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I was doing a little reading of the on-line documentation for gcc, and I
noticed that the i386 family of chips that it can optimise for 
includes i386, i486, pentium and pentium pro. It has no mention of
PII or PIII specific optimisations. Neither does it mention any of the
Cyrix or AMD class processors. 

While code targetted at a pentium or pentium pro will run on these processors
would there by anything gained by optimising code for the later processors?
Would such optimisation, if used, to compile a custom kernel, or even 
custom-compile a whole "buildworld" deliver any significant performance
gains?

Just wondering...

Mike

<>< ============================================================= ><>
Michael Doyle                    email: relyod@cooperationireland.org
Network Administrator            personal email:     relyod@indigo.ie
Co-operation Ireland	           http://www.cooperationireland.org/
Phone: +353-1-661 0588                           Fax: +353-1-661 8456

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