The invention discloses a cache space control method of a storage
system,
electronic equipment and a storage medium, and relates to the technical field of data caching, and the method comprises the steps of identifying
dirty data, comparing the size relation between the
hit rate of cached data in a cache space and a first
hit rate threshold value and a
second hit rate threshold value, and when the
hit rate is greater than the first hit rate threshold value, controlling the cache space of the storage
system. When the hit rate is smaller than a first hit rate threshold value, executing an expansion instruction to control the cache module to expand a cache space, and when the hit rate is smaller than a
second hit rate threshold value, controlling the cache module to
brush dirty data down to a rear-end memory, executing a reduction instruction to control the cache module to reduce the cache space, and performing a
cache hit rate judgment mechanism and a linkage telescopic cache mechanism in a full
random access scene. The problems of performance reduction, high
delay of
data access, high
power consumption and the like of the cache
system due to the fact that the cache space is fixed and cannot adapt to different application scenes and changes of data loads in the prior art are solved, performance self-adaption of the IO model is achieved, the response speed is increased, and the performance of the cache system in multiple storage scenes is improved.