Re: Compiling Programs

From: Erik Mouw <J.A.K.Mouw_at_ITS.TUDelft.NL>
Date: Wed, 13 Jun 2001 01:46:10 +0200

On Tue, Jun 12, 2001 at 03:06:30PM -0700, Jim Gettys wrote:
> Recent experience is that optimizing for size often *improves* performance,
> due to better cache behavior. Presuming memory is free is now a major
> fallicy in programming. It is generally very expensive to touch, in terms
> of cycles.

Sure, but apparently the kernel is the exception on the rule. Which was
to be expected, though: the kernel already contains performance
optimised code.

Erik
[who still has to run that -Os optimised kernel]

-- 
J.A.K. (Erik) Mouw, Information and Communication Theory Group, Department
of Electrical Engineering, Faculty of Information Technology and Systems,
Delft University of Technology, PO BOX 5031,  2600 GA Delft, The Netherlands
Phone: +31-15-2783635  Fax: +31-15-2781843  Email: J.A.K.Mouw_at_its.tudelft.nl
WWW: http://www-ict.its.tudelft.nl/~erik/
Received on Tue Jun 12 2001 - 16:44:16 EDT

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