Re: java performance w2k vs NT4
From: Andrew de Torres (detorres_at_ureach.com)
Date: 12/19/03
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Date: Fri, 19 Dec 2003 10:58:26 -0800
My first thought is that similar specs may be different enough. Are the
graphics cards the same? Where is the difference in performance? Is it
start-up time? Is there a thread that causes periodic updates to the
tables and is that what appears to be taking more CPU? Personally, I
haven't compared applications on the same machine with WinNT vs. Win2k,
but I would look carefully at the hardware differences.
Andrew de Torres
* Sun Certified Java Programmer for J2SE
* Sun Certified Web Component Developer for J2EE
* Home: http://members.cox.net/detorres/
Bastien Raich wrote:
> Hello,
>
> I've been developping a Java application using sun's 1.4.1 on my NT4
> box.
>
> It's a financial application that retrieves market data in real time,
> displays it in JTables, do some computations, and from which you can
> also open small dialogs to send orders to the market... client /
> server based (but not Java connection, it's a simple socket
> connection)
>
> my clients have been running NT4 for some time, and we recently
> decided to migrate to windows 2000. after all I had read about java
> portability and performances of w2k vs NT, I just quickly checked the
> app was starting up, and started the migration.
>
> however after we finished the first PC and ran it the next day in
> production, we realized everything was REALLY slow. I mean MUCH slower
> than on the other PCs still running NT4. I could not tell for sure (my
> users are remote), but CPU usage seems to be more intensive on the w2k
> box.
>
> another interesting thing was that things are REALLY slow with jre
> 1.4.2 and 1.4.1, but "quite ok, although slower" with jre 1.4.0 .
>
> I am really puzzled... the machines used are of pretty similar specs.
>
> so do you know of any perf. issue between those two OSes ?
> any specific code I should pay more attention to ?
> any known problem with w2k ? I searched the NG & knowledge bases with
> no success...
>
> thanks to share your knowledge !
>
> --Bastien
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