Load Testing · Middle · Question 24 of 76
Why does latency grow sharply as a resource approaches 100% utilization?
- 1Queues grow non-linearly as utilization approaches full
- 2At 100% the CPU runs at a lower clock speed to cool down
- 3Load tools add extra delay when the server is busy
Show the answer
Correct answer: Queues grow non-linearly as utilization approaches full
Explanation
In queueing models, waiting time grows like 1/(1−ρ). At 50% the wait is modest. At 90% and above, small load increases cause huge delays.