High speed cache replacement policy dynamic selection method
A cache and replacement strategy technology, applied in memory systems, memory address/allocation/relocation, instruments, etc., to achieve the effect of reducing average response time, reducing CPU and memory overhead, and balancing time and accuracy
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[0083] The invention can be implemented in a secondary storage system structure composed of arbitrary high-speed and low-speed storage devices. High-speed storage devices are generally memory or solid-state disks, which have the characteristics of fast speed, high price, small capacity, and easy loss of power. According to the principle of data access locality, they cache the recently accessed data, thereby improving the performance of the entire system. Low-speed storage devices are generally ordinary disks, which have the characteristics of slow speed, low price, large capacity, and non-volatility. They store all the data. The dynamic selection method of the cache replacement strategy is mainly composed of the cache service module, the cache replacement strategy module, the access record collection module and the access record analysis module. The architecture of this method is shown in Figure 1.
[0084] Module (1). Cache replacement strategy module
[0085] The cache replaceme...
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