Why do you think it would be nice to use the 64bit version of the SUN JDK ?
I compared the 32bit and 64bit version of JDK 1.5.0_02 a few days ago on a FujitsuSiemens PrimePower with 3x1,3 GHz Sparc64 CPUs. Those CPUs are comparable to UltraSparc III/IV. The 32bit VM is about 15% faster than the 64bit version. This is explainable: 64bit means, that twice the memory is needed for pointers and integers inside the binary VM code. This means more memory consumption and bigger memory transfers in this case. You only need the 64bit VM if you want to use more than 2GB memory. The application, JBoss in this case, runs the same in both cases. 32 or 64 bit VM has no effect on the app, beside the maximal allowed memory allocation. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=3872487#3872487 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=3872487 ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ JBoss-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/jboss-user
