4 ms·
This is the "scan resistance" pathology mentioned in the article. And the scratch slot is a (very simple) form of generational caching; i.e. generational LRU or
by tankenmate 3y ago
This is the "scan resistance" pathology mentioned in the article. And the scratch slot is a (very simple) form of generational caching; i.e. generational LRU or multi-generational LRU [0].
[0] https://lwn.net/Articles/856931/ https://lwn.net/Articles/856931/