Hi All, I have been running some performance tests using jmeter (testing webservices) and the results i am receiving do not seem consistent.
I am running http tests and writing the results to a csv file, storing the timestamp and latency of each test. I am calculating the overall time of the test run(the timestamp of the last test minus the timestamp of the first test) and then calculate the thruput by dividing the number of tests run (I do a run of 2500 requests) by the calculated time taken. however, the thruput does not seem to be consistent with the average latency. For example, I run a test of 2500 and the average latency is 500ms and the thruput is 15.1 messages/second, however, I also run another test and I get an average latency of 250ms but the thruput is only 17.4 messages/second. Intuitively, the latency should directly proportional to the thruput, and roughly speaking (untill you max out your services) if you double the average latency I would expect the thruput to halve? Any ideas as to what might be happening? Thanks in advance Rob
