Intermediate
Computer Architecture & Organization
Q45 / 100
What is "cache hit ratio" and why does it matter for performance?
Correct! Well done.
Incorrect.
The correct answer is A) The percentage of memory accesses that are found in the cache rather than requiring a slower access to main memory; a higher hit ratio generally means better performance
A
Correct Answer
The percentage of memory accesses that are found in the cache rather than requiring a slower access to main memory; a higher hit ratio generally means better performance
Explanation
When data needed by the CPU is already in the cache (a "hit"), access is fast; a "miss" requires fetching from slower main memory. A higher hit ratio reduces average memory access time and improves performance.
Progress
45/100