I am running a simple Jmeter test with 10 users and ramp up time of 30 seconds - which means 1 user on a page every 3 seconds. I get an average response time of ~8 seconds per page whereas in real time, how much ever I try, the page loads within 2 seconds. I don't how I should use Jmeter results for measurement. Any help here highly appreciated.
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1 Answers
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Given correct JMeter configuration results are pretty much close to the real user experience.
In order to make your test more realistic consider the following:
- Add HTTP Cookie Manager to enable cookies support and deal with cookie-based authentication
- Add HTTP Header Manager - it might be the case when server is capable of sending compressed data and i.e. browser sends the relevant header, and JMeter doesn't resulting in more data to transfer -> longer response time
- Real browsers download embedded resources like scripts, styles and images. But real browsers do it only once, on subsequent requests resources are being returned from cache. JMeter re-downloads the resources each time. In order to simulate browser's behavior you need to add HTTP Cache Manager
- "10 users and 30 seconds ramp-up" doesn't necessarily mean "1 user each 3 seconds". In order to ensure that JMeter produces desired hits/s rate add Constant Throughput Timer to your test plan and set desired throughput there.
