Re:Do we really still need a 32-bit JVM?
by Synaesthesia on Tuesday May 26, 2015 @02:04PM
(#9606441)
So going to 32-bit JVM you sometimes get a slight performance boost, sometimes a slight performance loss, and overall not a huge difference, so I don't think it's really worth it, or even worth trying.
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The performance difference for 32-bit vs 64-bit JVMs can be significant for some workloads. I develop a desktop engineering simulation application in Java.
The simulation time for the same code running the same model on a 64-bit JRE is often almost half the time required on a 32-bit JRE. With simulation times measured in hours to days, this was an extremely nice "freebie" for painlessly migrating to a 64-bit JRE.
We still support 32-bit JREs for each release as many corporate IT departments are still migrating users from 32-bit Windows environments to 64-bit. However, we strongly recommend the 64-bit version for the additional memory space that can be allocated and the reduced simulation time.