Intelligent Management of Computer Express Link Fabric for Memory and Storage Access

A system, comprising:

• a computer express link fabric having:
• a plurality of computer express link switches;
• a plurality of computer express link connections among the computer express link switches;
• and
• a controller configured to:
• store data specifying mapping of first portions of a mapped memory space to second portions of random access memory cells in a plurality of memory devices connected to the computer express link fabric;
• select options to control the computer express link switches in routing, according to the mapping, first memory access requests to the plurality of memory devices;
• measure rewards for the options selected to route the first memory access requests to the plurality of memory devices;
• and
• update, using a reinforcement learning technique and the rewards, reward values for selection of options in routing second memory access requests received in the computer express link fabric.

A non-transitory non-volatile computer readable medium storing instructions which when executed in a controller of a computer express link fabric, cause the controller to perform a method, comprising:

• storing data specifying mapping of first portions of a mapped memory space to second portions of random access memory cells in a plurality of memory devices connected to the computer express link fabric;
• selecting options to control computer express link switches in the computer express link to route, according to the mapping, first memory access requests to the plurality of memory devices;
• determining latencies of the plurality of memory devices in responding to the first memory access requests;
• and
• updating, using a reinforcement learning technique and the latencies, reward values for selection of the options in routing second memory access requests received in the computer express link fabric.