Hit rate is defined by the fraction of accesses found in cache. A processor has the miss rate of 1%. What does the number mean? For cache read, if a MISS happens, the processor usually reads a block...

Hit rate is defined by the fraction of accesses found in cache. A processor has the miss rate of 1%. What does the number mean?

For cache read, if a MISS happens, the processor usually reads a block of data into the cache. What is the benefit of this?