Resource allocation method and Cache

Abstract

An embodiment of the invention discloses a resource allocation method. The method is applied to a Cache shared by multiple processors. The Cache comprises a Cache controller and Cache registers; and the Cache registers include a statistical register corresponding to each processor and a lock register corresponding to each processor. The method comprises the steps that each statistical register performs statistics on Cache capacity accessed by the processor corresponding to each statistical register in a preset time, obtains Cache access capacity of each processor, and sends the Cache access capacity of each processor to the Cache controller; the Cache controller determines Cache allocation capacity of each processor according to the Cache access capacity of each processor; and the Cache controller writes the Cache allocation capacity of each processor in the lock register corresponding to each processor. Meanwhile, an embodiment of the invention furthermore discloses the Cache.

Description

technical field [0001] The invention relates to the field of multiprocessors, in particular to a resource allocation method and a high-speed cache memory Cache. Background technique [0002] At present, in the chip system, the area cost is a crucial factor, and while reducing the area cost, how to ensure the performance of the processor has also become a key issue that people have been eager to solve. [0003] In modern multi-core systems, multi-core shared high-speed cache memory (Cache) is the most basic method to improve processor access performance. However, in the multi-core system architecture, each processor core handles different tasks, and each core processes tasks. The time is different, so that each core has different requirements for the use of Cache resources; and in the current multi-core architecture, in the lock-down mode of the Cache, the processor's use of the Cache capacity is statically allocated, without consideration The processor's demand for dynamic ...

AI Technical Summary

Problems solved by technology

[0003] In modern multi-core systems, multi-core shared high-speed cache memory (Cache) is the most basic method to improve processor access performance. However, in the multi-core system architecture, each processor core handles different tasks, and each core processes tasks. The time is different, so that each core has different requirements for the use of Cache resources; and in the current multi-core architecture, in the lock-down mode of the Cache, the processor's use of the Cache capacity is statically allocated, without consideration The processor's demand for dynamic access to the Cache changes. In this case, the access performance of cores with relatively large Cache access requirements cannot be improved, and the Cache resources used by cores with relatively small Cache requirements will be wasted, which is not conducive to the area cost and cost of multi-core systems. Balance of access performance

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