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Performance Test Automation 101: Gatling, Lighthouse, & Jenkins

Understanding the Gatling Report

Explore how to read and interpret the Gatling performance test report, including global statistics, response time distributions, and active user trends to understand system behavior under load.

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In the previous lesson, we learned how to run the Gatling test script. In this lesson, we will understand the generated Gatling report.

The last line of the execution console output shows the HTML report path.

Shell
================================================================================
---- Global Information --------------------------------------------------------
> request count                                          2 (OK=2      KO=0     )
> min response time                                    476 (OK=476    KO=-     )
> max response time                                   1034 (OK=1034   KO=-     )
> mean response time                                   755 (OK=755    KO=-     )
> std deviation                                        279 (OK=279    KO=-     )
> response time 50th percentile                        755 (OK=755    KO=-     )
> response time 75th percentile                        895 (OK=895    KO=-     )
> response time 95th percentile                       1006 (OK=1006   KO=-     )
> response time 99th percentile                       1028 (OK=1028   KO=-     )
> mean requests/sec                                      1 (OK=1      KO=-     )
---- Response Time Distribution ------------------------------------------------
> t < 800 ms                                             1 ( 50%)
> 800 ms < t < 1200 ms                                   1 ( 50%)
> t > 1200 ms                                            0 (  0%)
> failed                                                 0 (  0%)
================================================================================
Reports generated in 0s.
Please open the following file: /Users/desktop/gatling-load-test/gatling-results/samplesimulation-20200531214559990/index.html

Global Information

This chart shows how response times are distributed among standard ranges. The right panel shows the number of OK/KO requests.

The top panel shows some standard statistics such as min, max, average, ...