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At startup, each Geode server with off-heap memory configured creates several off-heap fragments (each with a maximum of 2GB of size) so that any request to allocate an object could get a piece of any of the available fragments to store the object.
A list of tiny and huge memory chunks is also be maintained by Geode so that off-heap memory freed when deleting an off-heap object will be put in one of these two lists (depending on the amount of allocated memory) for further allocation requests of objects of the same size.

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