From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.5-pre1 (2020-06-20) on ip-172-31-74-118.ec2.internal X-Spam-Level: X-Spam-Status: No, score=-1.9 required=3.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.5-pre1 Date: 21 Sep 92 21:30:43 GMT From: cs.utexas.edu!csc.ti.com!tilde.csc.ti.com!mksol!mccall@rutgers.edu (fred j mccall 575-3539) Subject: Re: Using Global Variables Message-ID: <1992Sep21.213043.5288@mksol.dseg.ti.com> List-Id: In <1992Sep21.192325.16479@sei.cmu.edu> firth@sei.cmu.edu (Robert Firth) writes : >In article <1992Sep19.022828.11648@seas.gwu.edu> mfeldman@seas.gwu.edu (Michae l Feldman) writes: >>(1) Fast enough is fast enough. Tweak (only) what you need to tweak. >Don't tweak even when you need to. In the time it takes you to get the >tweaks correct, there'll be a new version of the machine that is fast >enough without them. Well, that may be good advice if you are in a research or academic environment, but out in the real world that simply isn't always a viable choice. The size of the brain that you can stuff into a restricted space (like a missile) is strictly limited. You may simply not be able to shove a more powerful processor in there, even if the contract and the schedule will let you wait around for one. In addition, you may be in the process of doing a software upgrade to make a system more capable, which requires making the new software run sufficiently fast on the old hardware. Let's not forget what the primary use of Ada was intended to be, back when it was designed (i.e., embedded realtime). -- "Insisting on perfect safety is for people who don't have the balls to live in the real world." -- Mary Shafer, NASA Ames Dryden ------------------------------------------------------------------------------ Fred.McCall@dseg.ti.com - I don't speak for others and they don't speak for me.