Method and system for optimizing transaction data storage in non-volatile memory

Abstract

The invention puts forward a method for optimizing transaction data storage in a non-volatile memory. By utilizing the characteristic of negative correlation between the data hold time and writing speed of the non-volatile memory, a plurality of sets of writing parameters are prestored in the non-volatile memory, two sets of writing parameters are chosen therefrom, wherein the data hold time of the first set of writing parameters is long and the writing speed of the first set of writing parameters is low, the data hold time of the second set of writing parameters is short and the writing speed of the second set of writing parameters is high, and the method judges whether the type of transaction data to be stored belongs to persistent data or a log; if the transaction data to be stored are the persistent data, then the first set of writing parameters are adopted for storage; if the transaction data to be stored are the log, then the second set of writing parameters are adopted for storage. The method disclosed by the invention can meet the requirement of a system on consistency when failure takes place, also can accelerate operation on logs during transaction execution, and can effectively prolong the service life of the non-volatile memory as well. The invention also provides a system for optimizing transaction data storage in the non-volatile memory.

Description

technical field [0001] The invention relates to the technical field of non-volatile main memory storage, in particular to a method and system for optimizing transaction data storage in non-volatile main memory. Background technique [0002] Non-volatile main memory (Non-Volatile Memory, NVM) is a new type of memory, which has the advantages of byte addressability, non-volatile power failure, high storage density, no need for frequent refresh, and low energy consumption. . At the same time, it also has disadvantages, such as a relatively long write delay, and a limited limit on the number of writes. Non-volatile memory has many new implications for computer system architecture, system software, software libraries, and applications. Non-volatile memory devices can be combined with existing DRAM devices to form a hybrid main memory, where temporary data in applications is stored on DRAM, and data that needs to be persisted is stored on NVM. When NVM is used as memory, the ex...

AI Technical Summary

Problems solved by technology

However, NVMDuet does not take into account that persistent writes can also be classified storage

Images