Apparatus and method for improving input/output throughput of memory system

An operation method of a memory system, comprising:

• determining whether to perform a correlation operation based on the number of a plurality of read requests;
• performing the correlation operation on the plurality of read requests, based on the determination result;
• transferring the correlated read requests to a plurality of channels coupled to a plurality of memory dies;
• and
• receiving data corresponding to the correlated read request from the plurality of memory dies via the plurality of channels in an interleaving way,
• wherein the plurality of read requests include a read request for an internal operation of the memory system and a read request received from a host.

A memory system comprising:

• a plurality of memory dies;
• a controller;
• and
• a plurality of channels coupled between the controller and the plurality of memory dies,
• wherein the controller is suitable for:
• determining an idle channel among the plurality of channels;
• transferring an internal read request to a select memory die among the plurality of memory dies, through the idle channel;
• performing a correlation operation on a plurality of read requests, which are received from a host, to generate correlated read requests;
• and
• transferring the correlated read request to multiple memory dies among the plurality of memory dies, through at least one remaining channel among the plurality of channels.