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From "Robert Petersen" <>
Subject GC tuning - heap size autoranging
Date Wed, 30 Jun 2010 16:50:56 GMT

Is this a true statement???  This seems to contradict other statements regarding setting the
heap size I have seen here...

Default Heap Size
If not otherwise set on the command line, the initial and maximum heap sizes are calculated
based on the amount of memory on the machine. The proportion of memory to use for the heap
is controlled by the command line options DefaultInitialRAMFraction and DefaultMaxRAMFraction,
as shown in the table below. (In the table, memory represents the amount of memory on the

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