What should be considered while using loop unrolling? a) cache size b) RAM size c) disk space d) network speed
Understand the Problem
The question is asking about the factors that should be considered when implementing loop unrolling, which is an optimization technique in programming. It specifically lists multiple choice options related to computing resources, such as cache size, RAM size, disk space, and network speed.
Answer
Cache size
Cache size should be considered while using loop unrolling.
Answer for screen readers
Cache size should be considered while using loop unrolling.
More Information
Loop unrolling can affect cache usage because increasing the unroll factor may enlarge the loop body and potentially exceed the cache size limitations. This affects performance.
Tips
Be cautious about unrolling loops too much, as this might result in code that doesn't fit well in the CPU cache, leading to reduced performance.
Sources
- Loop Unrolling - an overview | ScienceDirect Topics - sciencedirect.com
- Cache size and effect on effectiveness of loop unrolling : r/Gentoo - reddit.com
