Cache management method and device

Abstract

The invention discloses a Cache management method and device, relates to the communication field and is used for solving the problem of how to improve the utilization rate of cache resources. The method provided by the present invention includes: receiving an access request, determining the data to be accessed that needs to be accessed by the access request; judging the strength level of the spatial locality of the data to be accessed; The weak level allocates cache subunits corresponding to the level for the data to be accessed. The invention is applicable to the communication field and is used for realizing the management of Cache.

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...

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