The memory management method of segment page combination

Abstract

The invention discloses a memory management method for combining segments and pages, comprising the following steps: S1, obtaining available physical memory on the entire server; S2, reserving one or more segments of continuous physical memory from the available physical memory, and Add the reserved contiguous physical memory to the segmented physical memory resource pool; S3. Add the remaining physical memory that is not added to the segmented physical memory resource pool in the available physical memory to the paged physical memory resource pool; S4. When computing When a component needs physical memory, it applies for physical memory from the segmented physical memory resource pool through the segmented memory application interface; S5. When a common user program needs physical memory, the operating system kernel will apply for physical memory as large as the size supported by the processor. page page size for comparison. Through the flexible memory management strategy, the present invention solves the requirement of a special computing component for large blocks of continuous physical memory, takes into account the memory usage requirement of common user programs, and flexibly adapts to different memory requirement scenarios.

Description

technical field [0001] The invention relates to a memory management method for combining segment pages and belongs to the technical field of computers. Background technique [0002] Special accelerated computing components have clear requirements for the use of large blocks of contiguous physical memory. First, the required capacity is large, often several GB, and the second is high availability. Failure to apply means that the computing task cannot be deployed, and it is necessary to avoid this situation as much as possible. To meet the above requirements, a large block of memory is usually reserved as the dedicated memory for special acceleration components for special management. For example, the current page-based memory management of the Linux system can easily lead to fragmentation of memory usage. Even after sorting, it cannot guarantee the successful application of large blocks of continuous physical memory. Therefore, in order to meet the application of large blocks...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a memory management method combining segments and pages. The memory management method combining segments and pages solves the needs of special computing components for large continuous physical memory through flexible memory management strategies, and at the same time takes into account common user programs. Memory usage requirements, flexibly adapt to different memory demand scenarios

Images