Question

Typical metrics you need to monitor include the following in that
identify the odd one

percent of cpu utilisation
amount of free memory
page file utilisation
execution time​

Answer 1

Answer:

When performance testing, you should always get KPIs and metrics from two sources. Firstly, from the service you are testing (website, mobile application or other). These KPIs include the number of requests per second, the speed of data transfer, the amount of transferred data, etc.

Secondly, you need to collect the internal metrics of the server that your tested service is on. These include anything from the CPU load to the number of files that are opened by a particular process. These metrics will help you with your product planning. They can help you predict your peak load, help you find the cause of low throughput or request errors, and more.