Runtime overview

The Runtime overview tab displays the following statistics:

Name	Description
Scenario Name	Name of the scenario currently running
Start Time	Scenario start date
Elapsed Time	Time elapsed since test started
Total Hits	Total number of hits since test started
Total Throughput	Total number of megabytes received from server
Total Errors	Total number of errors since test started
Total Alerts	Total number of alerts since test started
Total Users Launched	Total number of Virtual Users launched since test started, including those currently running.
Total Iterations Completed	Total number of times when the Actions Container has been executed since test started.
Average Response Time (requests)	Average response time for HTTP requests since test started
Average Response Time (pages)	Average response time for web pages since test started
Average Hits/sec.	Average hits/sec. since test started
Average Throughput	Average throughput since test started
Current Response Time (requests)	Average request response time for HTTP requests over the last second
Current Response Time (pages)	Average request response time for web pages over the last second
Current Hits/sec.	Average hits/sec. for HTTP requests over the last second
Current Throughput	Average throughput over the last second
Current Users Count	Number of Virtual Users currently running

Graphs

The main statistics are plotted in real time: number of Virtual Users currently running, error rate (errors/sec.), number of alerts, hits/sec. and average request response time.

Controller

Two metrics monitor the Controller activity:

Controller CPU Load: CPU load for the machine hosting the Controller.

Controller Memory used: Memory used, expressed as a percentage of the memory allocated to the Controller program.

Load Generators

Monitors the Load Generators activity:

Host: Machine running the Load Generator.
Virtual Users: Number of Virtual Users currently being run by that Load Generator.
Hit Rate: Average hit rate generated by that Load Generator.
Errors: Current error rate (number of errors per second).
CPU Load: CPU load for the machine hosting the Load Generator.
Memory Used: Memory used, expressed as a percentage of the memory allocated to the Load Generator program (the program default memory allocation is 384Mb).
Throughput: Throughput in Megabits per second for the network interface used on the Load Generator.

If the CPU Load or Memory Used figure regularly exceeds 90%, this indicates that the Load Generator is overloaded. Run the test with fewer Virtual Users or a longer think time, or use additional Load Generators.