Here are some customer questions and our answers about load testing memory usage and other topics.

Load Testing Memory Usage

Question: Can someone assist me to double check my Memory usage on this test? In “Free Memory” how do I check if we are running out of memory in our test? Do we follow the rule of 75% Threshold?

Do we have a way to clean this list of tests (check image below) without deleting it?

Answer: Yes, the 75% rule is good. If you go above that, you may run into issues.

You can filter the tests by date if you only want to see the recent ones.

Bandwidth

Q: How do I check the average bandwidth we used for each server?

A: For the bandwidth used per server, you can expand the section for “Test Server” and it has Download Size, which is the total downloaded size. Note that this is the raw response, so it doesn’t include all network bandwidth (e.g. request size, response headers, etc.). You can also use “Export as CSV” for the “Network Bytes Received” and “Network Bytes Transmitted” graphs to get the data per server, then use Excel to compute the total.

Mixing Spot and On Demand Instances

Q: Is it ok to mix spot and on demand instances? If yes,will all servers wait to be up before it starts the test?

A: Yes, mixing spot and on-demand instances is fine. The test won’t start until all servers start. If the spot instances aren’t granted, the test will be cancelled.

Network Received

Q: Is this per server or for a combination of all servers?

A: It is the combination of all servers.