Internal memory operation management method and system

Abstract

The invention discloses a management method of memory operation, and a thread level memory pool maintained by a thread is arranged. The method further comprises the following steps: a business module applies to the thread when needing to use a memory block; the thread calculates the size of the allocated memory block, and searches whether the memory block with needed size exists in the self thread level memory pool; if exists, the thread allocates the memory block with corresponding size from the thread level memory pool to the business module and completes the memory application flow; otherwise, the thread is locked and applies for a certain amount of memory blocks with the needed size to a process; or the memory block with the size of one level bigger than the needed size is allocated to the business module and the memory application flow is completed. The invention further discloses a memory operation management system comprising a first-level memory management unit, a second-level memory management unit and a third-level memory management unit. With the invention, the running efficiency of programs can be improved.

Description

technical field [0001] The invention relates to the technical field of memory management, in particular to a memory operation management method and system. Background technique [0002] At present, in order to avoid the problem of memory fragmentation caused by directly using the operating system to allocate memory, the prior art generally adopts a secondary memory management mode to manage memory. The architecture of the two-level memory management mode is: the first level maintains the memory by the operating system, and the second level maintains the memory by the process. Among them, the process maintains the memory allocated to it by the operating system through the memory pool. Here, the memory maintained by the operating system is called the operating system level memory, and the memory maintained by the process is called the process level memory pool. figure 1 A schematic diagram of the organization of the existing memory pool, such as figure 1 As shown, the size ...

AI Technical Summary

Problems solved by technology

Because in the case of multi-threaded operation, if each thread frequently applies for or releases memory blocks, frequent locking and unlocking operations are required, which will cause threads to wait for each other, thereby affecting the operating efficiency of the program , it cannot make full use of hardware conditions such as multiple CPUs

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