A way to completly disable auto eviction.

[maxjust]

Looking for fast cache without auto eviction by time or filling. Does your cache have any ways to make all data persistent in cache while Delete method is not triggered?

[valyala]

Unfortunately this isn't possible by design, since this may result in out of memory errors when a lot of items are added to the cache and none are deleted.

[maxjust]

In my opinion be cool (like some mode) to implement "stop write" returned error when cache is full and we try to put new record. In that case fastcache can be used like temporary fast persistent storage with consistency garantee.