I have a windows pc with 64 bit OS (windows 7 Enterprise) and 8 GB of RAM. I want to run a heavy java program on eclipse and I would like to allocate as much of the PC resources only to eclipse/JVM to boost the performance.
By the way, in two different runs of the same program, it took 33 mintues in one and 15 hours in the other. That's a very big difference which I do not know what configuration change (if any) caused this deterioration in the performance.
Could you please help me to Configure it properly?
In eclipse.ini (in the main folder of eclipse) there is a bunch of parameters that should help you to configure the amount of memory. At the end of the file should be sth like this:
-vmargs
-Xms1024m
-Xmx2048m (max heap)
-Xss1m (stack)
You can add as many parameters as you need. All of them must be after the line
-vmargs
You can find more JVM parameters here