This is not only surprising, but also seems like there might have been some problem in the way the benchmark behaves. I have seen better or in the worst-case similar performance after upgrades from Sun JRE6 to openJDK7
--- Regards, Saptarshi PURKAYASTHA My Tech Blog: http://sunnytalkstech.blogspot.com You Live by CHOICE, Not by CHANCE 2012/3/10 Lars Helge Ă˜verland <larshe...@gmail.com> > 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 > > _______________________________________________ > Mailing list: https://launchpad.net/~dhis2-devs > Post to : dhis2-devs@lists.launchpad.net > Unsubscribe : https://launchpad.net/~dhis2-devs > More help : https://help.launchpad.net/ListHelp >
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