| abstract |
The present disclosure is related to managing a caching system based on object fetch costs, where the fetch cost are based on the access latency, cache misses, and time to reuse of individual objects. The caching system may be a multi-tiered caching system that includes multiple storage tiers, where an object management system determines whether to retain or evict an object from a cache of a particular storage tier based on the object's fetch cost. Additionally, eviction can include moving objects from a current storage tier to another storage tier based on the current storage tier and fetch costs. |