Path: utzoo!attcan!uunet!tut.cis.ohio-state.edu!zaphod.mps.ohio-state.edu!uakari.primate.wisc.edu!ames!haven!udel!mmdf From: MAILER-DAEMON@honmavd.mavd.honeywell.com (Mail Delivery Subsystem) Newsgroups: comp.os.minix Subject: Returned mail: Service unavailable Message-ID: <21713@nigel.udel.EDU> Date: 11 Jun 90 20:47:59 GMT Sender: mmdf@udel.EDU Lines: 58 ----- Transcript of session follows ----- 554 mcimail.com.tcp... 554 Service unavailable 554 wstenson@mcimail.com... Service unavailable ----- Unsent message follows ----- Received: from cim-vax.Honeywell.COM by honmavd.mavd.honeywell.com (5.59/25-eef) id AA08339; Mon, 11 Jun 90 15:37:50 CDT Message-Id: <9006112037.AA08339@honmavd.mavd.honeywell.com> Date: 11 Jun 90 15:40:00 CST From: info-minix%udel.edu@VM1.NoDak.EDU Subject: Re: Efficiency vs Effectiveness To: "wstenson" Return-Path: Received: from VM1.NoDak.EDU by cim-vax.honeywell.com with SMTP ; Mon, 11 Jun 90 15:39:22 CST Received: from NDSUVM1.BITNET by VM1.NoDak.EDU (IBM VM SMTP R1.2.1MX) with BSMTP id 8273; Mon, 11 Jun 90 11:53:57 CDT Received: from NDSUVM1.BITNET by NDSUVM1.BITNET (Mailer R2.07) with BSMTP id 8267; Mon, 11 Jun 90 11:53:56 CDT Date: Mon, 11 Jun 90 15:48:31 GMT Reply-To: INFO-MINIX%UDEL.EDU@VM1.NoDak.EDU Sender: INFO-MINIX-ERRORS%PLAINS.NODAK.EDU@VM1.NoDak.EDU Comments: Warning -- original Sender: tag was info-minix-request@UDEL.EDU From: David Umbaugh Subject: Re: Efficiency vs Effectiveness Comments: To: info-minix@udel.edu To: Multiple recipients of list MINIX-L On 11 Jun 90 04:07:11 GMT, V2057A%TEMPLEVM.BITNET@cornellc.cit.cornell.edu (Juan Jose Noyles) said:Juan> Sender: mmdf@udel.EDU [Lots of blabber about effectiveness, efficiency and kernel omitted.] Juan> just an old junior grade hack. They're the only ones that claim that it's okay Juan> to waste code because the machine's more powerful, or bitch because it's not. I think it was that old junior grade hack, Harlan Mills, who said, "allways use the highest level language that will do the job, even if its JCL." [Quoted from memory, certainly inaccuratly.] Then there was that "Programming Pearls" column in CACM in which Jon Bentley suggested that one might sort a file using a one line shell command rather than to write a sort routine optomized for the specifics of the problem at hand. What a horrible waste of machine cycles. Execution efficiency is only one concern in program design. Often, it is one of the less important considerations. -- L. David (Dave) Umbaugh Computer Science Engineering University of Texas at Arlington BITNET PO Box 19015 Arlington, TX 76012