Capacity equals CapacityInElements. Rounded up to multiple of 16bytes. 

After changing Capacity, do not assume that any existing values will be preserved. Any memory re-allocation needed happens at the next call to Size. Capacity cannot be an odd number. When setting an odd number, the Capacity will be increased to the next even number. 

If Capacity specified is less than object cache size, then the value of Capacity is not considered.

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