Cause you might not be able to cache in memory, or your memory capacity is limited. You could cache in file if your long-operation takes longer than just retrieving from file.
hmm.....i think i got it what you mean!
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Cause you might not be able to cache in memory, or your memory capacity is limited. You could cache in file if your long-operation takes longer than just retrieving from file.
hmm.....i think i got it what you mean!