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=-0.3 required=5.0 tests=BAYES_00,FREEMAIL_FROM, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,6e940fd5ba87c3ce X-Google-Attributes: gid103376,public X-Google-Thread: fdb77,ebcb336c62963fb4 X-Google-Attributes: gidfdb77,public X-Google-ArrivalTime: 2003-04-15 07:57:11 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!bloom-beacon.mit.edu!cambridge1-snf1.gtei.net!news.gtei.net!bos-service1.ext.raytheon.com!cyclone.swbell.net!newsfeed1.easynews.com!easynews.com!easynews!small1.nntp.aus1.giganews.com!nntp.giganews.com!nntp3.aus1.giganews.com!nntp.gbronline.com!news.gbronline.com.POSTED!not-for-mail NNTP-Posting-Date: Tue, 15 Apr 2003 09:57:07 -0500 Date: Tue, 15 Apr 2003 09:57:13 -0500 From: Wesley Groleau Reply-To: wesgroleau@despammed.com Organization: Ain't no organization here! User-Agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en-US; rv:1.2.1) Gecko/20021130 X-Accept-Language: en-us, en, es-mx, pt-br, fr-ca MIME-Version: 1.0 Newsgroups: comp.lang.java.advocacy,comp.lang.ada Subject: Re: real-time Java References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Message-ID: NNTP-Posting-Host: 216.117.18.43 X-Trace: sv3-BpcSu9UexEFQ5zEimheUYX3qA/FESFl9tyV3BC03HrrWqu7m2ewZh9JJH5FviQIiEeeYAISfXvpvTN4!HqZfafu8St8xy0G3vcSwCoBar5j0GbGGtc4i6u582TAa/MrHULrEcpy0z7q4RrDYPff4aU+4s5Yy!/cRv X-Complaints-To: abuse@gbronline.com X-DMCA-Complaints-To: abuse@gbronline.com X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.1 Xref: archiver1.google.com comp.lang.java.advocacy:62139 comp.lang.ada:36161 Date: 2003-04-15T09:57:13-05:00 List-Id: >>>How the heck you do that with a language subject to garbage collection >>>is going to be an interesting thing to watch happen. Don't know much about it, but I read more than a year ago that some company had a JVM with "guaranteed deterministic" timing. > And also by choosing an appropriate garbage collector. Some real time tasks > can tolerate the delays introduced by a garbage collector. How about a garbage collector in a lower priority task that runs continuosly for some percentage of CPU time instead of hogging the machine only when desperately needed? (Another thing that would be nice is a JVM that is a shared library or resident in the OS or something, instead of--this is for multi-user environments, BTW-- having every Java program running its own copy of the JVM.)