dhis2-devs team mailing list archive

[Juma Lungo <jlungo@xxxxxxxxx>]

Thank you for sharing, and congratulations for setting up test cases.


Lungo



________________________________
 From: Lars Helge Øverland <larshelge@xxxxxxxxx>
To: DHIS 2 developers <dhis2-devs@xxxxxxxxxxxxxxxxxxx> 
Sent: Saturday, March 10, 2012 1:05 PM
Subject: [Dhis2-devs] Java performance
 
Hi,

as you know Oracle has withdrawn the "Operating System Distributor
License for Java" which means that Oracle JDK has been removed from
Linux package repositories. Another issue is that Oracle will no
longer post public updates to JDK 6 after November 2012. So which JDK
to choose for DHIS installations has become a question.

In that regard I have done some bench-marking running a full data mart
export using various JDK versions on Ubuntu 64bit. Each test was done
3 times and the result is the average time.

Sun JDK 6           2h 36m
OpenJDK 6          3h 24m
Oracle JDK 7       3h 25m
OpenJDK 7          3h 34m

A bit surprisingly Sun JDK 6 is far ahead. Will continue to
investigate the reasons for this and monitor JDK 7 performance in
future updates.


Lars

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