Micron Technology, Inc.
Enhanced duplicate write data tracking for cache memory

Abstract:

A request to perform a write operation to write data at a memory sub-system is received. Responsive to the request to perform the write operation, the data is stored at a cache portion of cache memory of the memory sub-system. A duplicate copy of the data is stored at a write buffer portion of cache memory. An entry of the write buffer record is recorded that maps a location of the duplicate copy of the data stored at the write buffer portion to a location of the data stored at the cache portion of the cache memory. A memory operation is performed at the memory sub-system based at least in part on the write buffer record.