Management method and device of cache

Abstract

The present invention relates to the field of communications. Disclosed are a cache management method and device for solving the problem of how to improve cache resource utilization. The method comprises: receiving an access request and determining data to be accessed by the access request (301); judging the strength level of the spatial locality of the data to be accessed (302); and according to the strength level of the spatial locality of the data to be accessed, allocating a cache subunit corresponding to the level for the data to be accessed (303). The present invention is used for cache management in the field of communications.

Description

technical field

[0001] The present invention relates to the communication field, in particular to a Cache (cache memory) management method and device. Background technique

[0002] During the development of computer technology, the access speed of the main memory has always been much slower than the processing speed of the CPU (processor), so that the high-speed processing capability of the CPU cannot be fully utilized, and the work efficiency of the entire computer system is affected. In order to alleviate the contradiction between the speed mismatch between the CPU and the main memory, a more commonly used method is to use a cache (high-speed cache) for caching at the storage level. For example, the cache can be integrated in the CPU so that the CPU can obtain data faster. figure 1 A schematic structural diagram of an N-way (way) set associative Cache is provided. Such as figure 1 As shown, the size of all cache lines (Cacheline) in the cache is the same, and each cache...

Images