How to evaluate load test performance

Windows:
Monitor the CPU /memory utilization using resource monitor and suggested to keep the load below 55% .

Debian:
Monitor the load average:
1. To monitor the load avg, run the command "top" from terminal and press shift + i.



Load Avg: 
On a multi-core system, if you have a load average equal to "no_of_cores" that would indicate all cores are at 100% capacity, and any overload will result in processes waiting for CPU time.

  • %CPU -- CPU Usage: The percentage of your CPU that is being used by the process. By default, top displays this as a percentage of a single CPU. On multi-core systems, you can have percentages that are greater than 100%. For example, if 3 cores are at 60% use, top will show a CPU use of 180%. You can toggle this behavior by pressing Shifti while top is running to show the overall percentage of available CPUs in use.