90% Line (90th Percentile) in Jmeter

What is 90% Line (90th Percentile) in Jmeter?

In JMeter, the 90% line (or the 90th percentile) is a metric used to measure the response time of a particular request during a load test. It indicates the time taken for 90% of the requests to be completed successfully.

For example, if a JMeter load test sends 100 requests to a server, the 90% line will indicate the time taken for 90 of those requests to be successfully completed, while the remaining 10 requests may have taken longer to complete due to factors such as network latency, server load, or other variables.

The 90% line is a useful metric for load testing because it gives an indication of the performance of a system under load. It can help identify performance bottlenecks and areas for optimization, as well as provide a benchmark for comparing different configurations or versions of the system.

Jmeter Practice Questions

What does the 90% Line (90th Percentile) represent in JMeter?

A. The response time for 90% of the requests

B. The average response time for all requests

C. The maximum response time for all requests

D. The minimum response time for all requests

Answer: a

How is the 90% Line (90th Percentile) calculated in JMeter?

A. By taking the average response time of the top 10% of requests

B. By taking the average response time of the bottom 10% of requests

C. By taking the response time of the request that falls exactly in the middle of all requests

D. By taking the response time of the request that is faster than 90% of all requests

Answer: d

In JMeter, which listener can be used to view the 90% Line (90th Percentile) for a particular request?

A. Summary Report

B. Aggregate Report

C. View Results Tree

D. Response Times Over Time

Answer: b

What is the significance of the 90% Line (90th Percentile) when analyzing JMeter test results?

A. It provides a clear indication of how long the longest response time took

B. It provides a clear indication of how long the shortest response time took

C. It provides a clear indication of how long most of the requests took to complete

D. It provides a clear indication of how long the average request took to complete

Answer: c

In JMeter, what is the default percentile value for the 90% Line (90th Percentile)?

A. 50%

B. 75%

C. 90%

D. 95%