Jmeter - how to get SLA metric

Question

Does exists any way to calculate count of requests under SLA in jmeter from UI? For example, count of requests that response time < 400 ms?

Answer 1

1. Simplest solution is to use Simple Data Writer to save Label, Elapsed Time and / or Latency to a CSV file, which will generate raw output like this:

   elapsed,label
   423,sampler1
   452,sampler2
   958,sampler1
   152,sampler1
   

   And from here you can take it to any other tool (awk, Excel, etc.) to filter results you want.

2. Another option is to use BeanShell Listener to generate such report on the fly. Something like this:

   long responseTime = sampleResult.getEndTime() - sampleResult.getStartTime();
   if(responseTime < 400) {
       FileOutputStream f = new FileOutputStream("myreport.csv", true);
       PrintStream p = new PrintStream(f);
       this.interpreter.setOut(p); 
       print(sampleResult.getSampleLabel() + "," + responseTime);
       f.close(); 
   }
   

   This method, though, may not be performant enough if you are planning to run a stress test with many (more than 200-300) users and many operations that "fit" the filter.