Load Testing · Junior · Question 65 of 75
What is tail latency?
- 1The time it takes to send the last byte of a response
- 2The delay between the end of the test and the report
- 3The response time of the slowest requests, like p99 or p99.9
Show the answer
Correct answer: The response time of the slowest requests, like p99 or p99.9
Explanation
Tail latency affects many users in large systems, because one page may call many services. One slow call makes the whole page slow.