Re: How are throughput and response time related?

2011-05-29 Thread Kirk
Think of your last trip to disney or your favorite amusement park. Lets define capacity of the ride to be the number of people that can sit on the ride per turn (think roller coaster). Throughput will be the number of people that exit the ride per unit of time. Lets define service time the the a

the impact of in performance testing with increasing the number of iterations per hour versus increasing the number of vusers

2011-05-29 Thread rajivkumarnandvani
Hi All, What will the impact of in performance testing with increasing the number of iterations per hour versus increasing the number of vusers - rajivkumarnandvani -- View this message in context: http://jmeter.512774.n5.nabble.com/the-impact-of-in-performance-testing-with-increasing-the-n

Re: How are throughput and response time related?

2011-05-29 Thread oliver
Hi Deepak, Right, I think I see where I got confused. You are talking about the situation where the system is running at full capacity - maximum throughput. So, yes, in this situation then it is logical that it is not possible to increase the load any further without suffering longer response t

Re: How are throughput and response time related?

2011-05-29 Thread deicool
Hey You will have to improve the system to get the same performance time (Even Google for that matter). If the system remains the same, and if you increase the number of request even by one, the response time will increase. You will have to increase the hardware or tune the system to get the same

Re: How are throughput and response time related?

2011-05-29 Thread oliver
Do I really want to argue this? Where to start? Sigh, look Deepak, to be fair to you, I think you might have misunderstood something, sometimes the terminology for this sort of thing can be different from one person to the next so perhaps throughput means something else to you - this happens a lot

Re: How are throughput and response time related?

2011-05-29 Thread deicool
Hey (Line 6) The response time will never stay at 300 ms if you double your throughput from 10 to 20. It will be always more than 300 ms (For the same system). Infact if you just increase from 10 to 11, you will see an increase in response time. Try it on any system :) Have fun Deepak

Re: How are throughput and response time related?

2011-05-29 Thread oliver
"Throughput is inversely proportional to Response Time." Er, that's not true. It is worrying how often people fail to grasp this basic concept. It's really not rocket science guys. I'm feeling generous so let's break it down. 'Throughput' is actually formed of two words, 'through' and 'put', as i