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performance tuning - Is there a way to know how much Java heap space to set?


I have already set it to be 4GB.


Needs["JLink`"]
ReinstallJava[JVMArguments -> "-Xmx4096m"]

However, when exporting a dataset to Excel sheet, I still get the following: enter image description here


Very frsutrating after a long wait and still getting this error. My laptop does have 32G of RAM. But is there a way to figure out how much to set in advance (instead of setting to the limit)?



Thanks.




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