Management system and method for cache replacement strategy
A replacement strategy, cache technology, applied in the direction of memory address/allocation/relocation, etc., can solve the problem of not being able to effectively meet the access requirements of cached applications, and achieve the effect of improving performance.
Active Publication Date: 2012-02-22
BEIJING PKUNITY MICROSYST TECH
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Problems solved by technology
[0010] The technical problem to be solved by the present invention is to provide a high-speed cache replacement strategy management system and method to overcome the application programs in the prior art that cannot effectively meet the various locality access characteristics of the cache by using a single replacement strategy Insufficient demand for access
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[0050] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings and examples, so as to fully understand and implement the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects.
[0051] First of all, if there is no conflict, the embodiments of the present invention and various features in the embodiments can be combined with each other, which are all within the protection scope of the present invention. Additionally, the steps shown in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions, and, although shown in a logical order in the flowcharts, in some cases, may be executed differently The steps shown or described are performed in the order shown herein.
[0052] figure 1 It is a schematic flowchart of an embodiment of a dynamic management method for a cache replacement p...
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The invention discloses a management system and a management method for a cache replacement strategy, and overcomes the disadvantage in the prior art that the adoption of a single replacement strategy cannot effectively meet the access demand of an application program with a plurality of different local access characteristics of the cache. The method comprises the following steps of: dividing a cache into a first part and a second part; dividing the first part into a first test group and a second test group, wherein a first replacement strategy is adopted by the first test group and a second replacement strategy is adopted by the second test group; setting a strategy selection register and recording failure frequencies of the first test group and the second test group; and when the accessof the second part is failed, selecting the replacement strategy for the second part from the first and the second replacement strategies according to the value of the strategy selection register. Compared with the prior art, the invention improves the application performance of the cache.
Description
technical field [0001] The present invention relates to a computer processor, in particular to a management system and method for a cache replacement strategy. Background technique [0002] Cache memory (Cache, also known as cache) is one of the important components of computer processors, and it is a kind of memory whose storage speed is between registers and memory. Using the locality principle of program execution, store the data to be accessed in the cache as much as possible. When the processor needs the data, the data can be submitted to the processor with a small time delay, thereby reducing the memory access delay and improving the The purpose of processor performance. [0003] Since the cache capacity is small, it is necessary to manage the cache effectively, and put the data required by the processor into the cache as much as possible, thereby reducing the probability of system memory access failure, reducing the memory access cost, and improving the overall perfo...
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IPC IPC(8): G06F12/02
Inventor 程旭黄涛管雪涛
Owner BEIJING PKUNITY MICROSYST TECH