Enhanced write buffer flush scheme for memory devices with high density storage memory architecture

A method, comprising:

• maintaining, at a memory controller of a memory system including a write buffer having a single-level cell (SLC) memory architecture and a memory module having a higher storage density memory architecture than the write buffer, a list of data segments stored in the write buffer, the list including, for each entry of the list, a data segment identifier of a respective data segment and an available contiguous memory space in the write buffer if the data segment is flushed, wherein the list is sorted based on the available contiguous memory space;
• detecting, by the memory controller, a flush opportunity associated with the write buffer;
• initiating, by the memory controller based on detection of the flush opportunity, a flush operation to write a first data segment from the write buffer to the memory module, the first data segment corresponding to the first entry of the list;
• receiving, from the host device and prior to completion of the flush operation, a write command associated with the write buffer;
• pausing performance of the flush operation upon receiving the write command, the flush operation having written a portion of the first data segment to the memory module;
• and
• writing, based on the write command, a new data segment to the write buffer.

A wireless communication device, comprising:

• a flash memory device comprising:
• a memory controller;
• a write buffer having a single-level cell (SLC) memory architecture;
• and
• a memory module having a higher storage density memory architecture than the write buffer;
• and
• at least one processor coupled to the flash memory device through a first interface,
• wherein the memory controller is configured to:
• maintain a list of data segments stored in the write buffer, the list including, for each entry of the list, a data segment identifier of a respective data segment and an available contiguous memory space in the write buffer if the data segment is flushed, wherein the list is sorted based on the available contiguous memory space;
• detect a flush opportunity associated with the write buffer;
• and
• initiate, based on detection of the flush opportunity, a flush operation to write a first data segment from the write buffer to the memory module, the first data segment corresponding to the first entry of the list;
• receiving, from the host device and prior to completion of the flush operation, a write command associated with the write buffer;
• pausing performance of the flush operation upon receiving the write command, the flush operation having written a portion of the first data segment to the memory module;
• and
• writing, based on the write command, a new data segment to the write buffer.