Memory system, memory controller, and method of operating a memory system for determining a number of hit and miss requests about map segments in a map cache and determining whether or not to perform data read operation in parallel

摘要

Embodiments of the present disclosure relate to a memory system, a memory controller, and an operation method. The embodiments receive a plurality of requests for a memory device, determine the number of hit requests and the number of miss requests with respect to the plurality of received requests, and determine whether or not to perform all or some of map data read operations for the respective miss requests in parallel and whether or not to perform all or some of user data read operations for the respective hit requests in parallel, thereby minimizing the time required for processing the plurality of requests.