Cache hit occurs when the requested data can be found in

the cache.

▪ Cache miss occurs when the requested data is not in the

cache and must be retrieved from a slower storage db.

▪ Cache hits are desirable because they can improve the

performance of a system by reducing the number of

requests.

▪ Cache misses can have a negative impact on performance,

because they require additional time and resources to retrieve

the requested data.

▪ The cache hit rate is a measure of how often a cache is able

to fulfill requests from its own store.

▪ High cache hit rate indicates that the cache is effective at

storing frequently accessed data.

▪ Low cache hit rate may indicate that the cache is not large

enough.

https://www.geeksforgeeks.org/cache-hits-in-memory-organization/