From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: * X-Spam-Status: No, score=1.6 required=5.0 tests=BAYES_05,INVALID_MSGID, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,2a15f832a31a89af X-Google-Attributes: gid103376,public From: Marin David Condic Subject: Re: who said Java can't be used for realtime ! Date: 1998/12/04 Message-ID: <3667F713.C8BEAC58@pwfl.com>#1/1 X-Deja-AN: 418629965 Content-Transfer-Encoding: 7bit Sender: condicma@nameserver.pwfl.com References: <73l99p$t3o@drn.newsguy.com> Content-Type: text/plain; charset=us-ascii Organization: Pratt & Whitney Mime-Version: 1.0 Reply-To: diespammer@pwfl.com Newsgroups: comp.lang.ada Date: 1998-12-04T00:00:00+00:00 List-Id: You'll have to define what you mean by "Real-Time Systems". I know lots of people who think that a workstation based application which has to respond to user's mouse-clicks in some acceptable amount of time is "Real-Time". Then you've got systems that have to monitor and adjust some real world electromechanical contraption where response time has to be measured in milliseconds - or even microseconds - and stopping to collect the garbage is just not an acceptable thing to do. Java can be used for real-time if you are very careful about what you call real-time. But that's like saying that Unix is "user-friendly" only its very picky about who its friends are. MDC bill_k@moonlight_entreprise.nospam.com wrote: > > see http://www.java.sun.com/features/1998/11/fishtank.html > > about 60% into the above page we read: > > "Even for a real-time system, it was better to let the system just garbage > collect when it needed to instead of trying to predict when you thought it > was a good time. The system just responded better that way." > > OK, so this is it. Java can also do realtime just fine, even with GC ! > > any rebuttle from the Ada fans? > > bill. -- Marin D. Condic Real Time & Embedded Systems, Propulsion Systems Analysis United Technologies, Pratt & Whitney, Large Military Engines M/S 731-95, P.O.B. 109600, West Palm Beach, FL, 33410-9600 Ph: 561.796.8997 Fx: 561.796.4669 "The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man." -- G.B. Shaw