Systems and methods for reducing write latency

• Main Authors: Robert D Gronlund, Peter A Scott
• Format: Patent
• Language: English
• Published: 27.02.2019
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

Discussed is a computer system 100 and operating method for reducing the memory data write latency. The system has processing circuitry 110 that executes a volume filter driver (VFD) 140 that can be switched between a fast termination (FT) mode of operations and a normal, or quiescent, mode of operations. When the processing circuitry receives input/output write requests to write data to memory 150 while the VFD is in the FT mode of operations, the VFD causes metadata associated with the received write requests to be written to a volume of memory, while preventing actual data associated with the received write requests from being written to the volume. After the file has been written to the volume, the VFD enters the quiescent mode of operations during which the VFD passes all write requests to the volume. Each write request may be a request to write content of a buffer to the volume in memory, and during the initialisation of the FT mode, a program may allocate an IO buffer and write a tag bit sequence to starting bytes of the allocated buffer.