4 ms·
Caches keep data, they don't delete them. It makes sense that a low latency cache would always keep the root of its cache structure in memory.
by KirinDave 7y ago
Caches keep data, they don't delete them. It makes sense that a low latency cache would always keep the root of its cache structure in memory.
- thephyber 7y ago> Caches keep data, they don't delete them. To be accurate, caches both keep and delete data. In fact, deleting data is a pretty important function of most caches as the nature of a cache is a fast lookup, not an infinite store.
- KirinDave 7y agoThis is of course a glib statement, but in general cached have specific (often configurable) eviction policies, so we would expect to see the root of the cache held perpetually anyways.