Am new to Jmeter and iran the test successfully. Now I'd like to understand what the results mean and what is classed as good/bad measurements, and what can be suggested to improve the results. Below is a table of the results collated in the Summary report of Jmeter.
Can anyone help me understand these results?
To improve results you'll want to look at the tests you run to generate these metrics and ask "does this test accurately measure your sites performance".
Are your results good or bad First you'll want to have a good foundation on how response time impacts how long users stay on your site. Here is a starter https://blog.kissmetrics.com/loading-time/?wide=1 e.g. If your pages load in 3 seconds 10% of users leave because thats too long for them, well, you have to decide if that is good, or bad for your company.
Understanding the graph Here is some info from the jmeter site on this particular graph: http://jmeter.apache.org/usermanual/component_reference.html#Graph_Results
at a glance Generally, it looks like your response time is fine, it almost seems so low that it hits you may not be covering everything necessary to test (see "to improve results") I do see your deviation is increasing as load increases, so there may be some small issue related to that.
JMeter comes with various samplers that can be used for analysis. You can have some additional and useful samplers from JMeter Plugins site.
In order to begin with analysis you need to have a look at 90th Percentile Response Time for each request.
Check if response time meets SLA. Also check for throughput you are getting.
Have different sets of test so that you can find relation with growing number of users, response time and throughput.
Aggregate Report Sampler can be used for this. If you find some requests are not meeting SLAs then run test with those requests, add some profilers, take thread dumps to analyze the bottleneck.
