エントリ数2千億件程度のキャッシュがあるときに、3TB程度の最大サイズ制限とTTLを効率的に実装するには、どうすれば良いか。1エントリごとに走査するLRUやclockでは即死するように思われる。何をサボるべきか
the old method would be start adding pressure if soft limit is reached, and insert only if evict size > insert size can be found on hard limit.
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interesting. sounds like a promising method especially when eviction frequency (=insert frequency) is very high.
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