Date: Sun, 10 Oct 1999 20:28:35 -0600 (MDT) From: Godmar Back <gback@cs.utah.edu> To: chris@tourneyland.com Cc: freebsd-java@FreeBSD.ORG Subject: Re: time measurement in Java Message-ID: <199910110228.UAA24017@faith.cs.utah.edu> In-Reply-To: <3.0.6.32.19991007213913.00857ec0@mail.9netave.net> from "chris@tourneyland.com" at Oct 7, 99 09:39:13 pm
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FWIW, http://www.cs.utah.edu/~gback/linux-jdk-cyclecounter/ has a class to access the Pentium cycle counter for more precise measurements. Should run under FreeBSD/Elf too. - Godmar > > >System.currentTimeMillis() returns time in milliseconds (obviously). > >I don't think there's any point in measuring time any more precisely, > >because of the slowness and variances in the execution of Java itself. > >More precision would be 'false precision' I think.. > > This is perpetuating a common misconception of Java, that Java is in some > way 'limited'. Java is only as limited as its implementations - and in > fact, it's not even that limited, since there's always the possibility of > native code. > > So here's a better (or at least more complete) answer - the JDK itself > offers no methods for getting more precise time than milliseconds, but > there maybe be a native code library or two that allow you to do better on > FreeBSD. If there are not, it's not to hard to write your own. > > Good luck, > Chris > > > >-Archie > > > >___________________________________________________________________________ > >Archie Cobbs * Whistle Communications, Inc. * http://www.whistle.com > > > > > >To Unsubscribe: send mail to majordomo@FreeBSD.org > >with "unsubscribe freebsd-java" in the body of the message > > > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-java" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-java" in the body of the message
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