I've written a small benchmark to test the processing power of the new Sharp Zaurus PDA models.http://www.alterna.tv/zjb/Zjb.java
Then I wanted to compare the result with my workstation, with JDK 1.4.2 Beta. And I was really
surprised to discover that the Pi calculation was giving a wrong result: Pi=3.1413934230804443
This only happens when running the whole program AND
I had no problems when:
- using other JDK: 1.4.1, 1.4.1_01, 1.3.1_01, 1.1.8
- using other platforms: PC, Zaurus
- extracting the Pi calculation fragment, with/without previous code...
So it must be:
0) A bug in my code, but I can't pinpoint it.
1) A problem in my workstation configuration. Apart from setting up JDK1.4.2, nothing new has happened recently.
2) A bug in the platform/OS. Could a new Win2K hotfix have broken a fix for a hardware problem, and Sun coincidentaly has removed the support from the JVM
My platform is a Win2K SP3 2xPII 350MHz.
3) A normal bug encountered in Beta software. Never play with Beta software keep saying my mother
4) An alien cause not listed in software development courses...Could someone with a 1.4.2 JDK setup try my code and check the Pi value?
There's no need reporting the problem to Sun if it's not point 2) or 3).
As a bonus, you'll can compare the performance of your workstation with a Zaurus SL-5500 PDA running Jeode http://www.alterna.tv/zjb/zjb-SL-5500.png
or Sun Personal Profile http://www.alterna.tv/zjb/zjb-SL-5500-Sun.png