Load Testing · Junior · Question 71 of 75
The CPU of an API server is at 30% while latency is high. Which is a likely cause?
- 1The CPU is too fast, so it finishes work and idles
- 2Waiting on something else: a DB, a lock, an external API
- 3The load tool sends too few requests to measure
Show the answer
Correct answer: Waiting on something else: a DB, a lock, an external API
Explanation
Low CPU and high latency mean requests wait rather than compute. Look at downstream calls, locks, thread pools and connection pools.