Investigate removing the need for an on heap map to store keys/pointers.
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Key: DIRECTMEMORY-63
URL: https://issues.apache.org/jira/browse/DIRECTMEMORY-63
Project: Apache DirectMemory
Issue Type: Improvement
Reporter: Michael André Pearce
On performance testing and monitoring jvm heap allocation, it became clear that
as the off heap elements increased so did the on heap used memory. This is
because DirectMemory is storing keys and pointers in the heap meaning that the
cache isn't fully off heap, and on heap memory will increase linearly with
elements in the cache.
An idea maybe is to look into using a key's hash for location on a separate
single off heap buffer to store the main heaps pointers.
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