[erlang-questions] Optimal way to restrict a ram_copies table to N entries

[Joel Reymont]

Suppose I'm trying to use a ram_copies table as a cache and need to  
come up with a cache eviction strategy. I would like to push the  
oldest entry out upon inserting a new one once the ram_copies table  
is full (N items).

What's the best (quickest) way of doing this?

I thought putting cache eviction in a separate process but that can,  
potentially, mean that my cache can grow way too big if insertions  
happen very fast.

	Thanks, Joel

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