Hi Im not sure whether I should interpret value as "what is the use of ?" or whether you literally mean value. Lets take your example - Suppose your site does have 5000 users active at any given point of time - However probably not all of them click something at exactly the same time - So your concurrent usage may be for e.g. 1000 requests per minute. If you wanted to model this , you could create a thread group with 5000 threads , but add a constant throughput timer to ensure that JMeter only makes 1000 requests per minute.
Constant timer as before is to introduce a pause between requests which is how most users would behave. regards deepak On Mon, Aug 10, 2015 at 7:41 PM, Dang Quoc Bao (FHO.FSB) < [email protected]> wrote: > Hi man! > Thanks for your supporting, and if I have a test plan with 5000 concurrent > users so What is value of constant timer? Or What is value of Throughput > Constant Timers. > Best Regards > Dang Quoc Bao > > -----Original Message----- > From: Deepak Shetty [mailto:[email protected]] > Sent: Monday, August 10, 2015 9:26 PM > To: JMeter Users List > Subject: Re: The best value for Constant timers in Jmeter > > Hi > >"What is the best value for Constant timers in Jmeter?" > There isn't a best value - Timers are used to simulate think times in a > test (or introduce delays) and are dependent on what you are trying to do > in your test. For e,g, if say a user is presented a registration form , > then the user is likely to spend some time filling(larger delay) it v/s say > a search results page where the user might simply click the top result > (smaller delay). So its upto you and your test As such the constant timer > doesn't work for most use cases -since delays are random in nature. > Constant timers are sometimes useful in diagnosing race/ deadlock > conditions where it is for e.g. necessary that thread 2 start exactly x > milliseconds after thread 1 > > >Should I use Constant timers or use Throughput Constant timers? > Again - depends on what you want to do. > Constant timers - delay a thread for the specified time Constant > throughput timer - Maintain the throughput at the specified value (i.e. say > you want to accomplish 100 requests per minute). > > Note in both cases while the names say "constant" - the value can be > changed while the test is running. > > I'd suggest you think about what you want your test to do and then match > it to how to do that in JMeter rather than the other way around. > > > > regards > deepak > > On Mon, Aug 10, 2015 at 12:02 AM, Dang Quoc Bao (FHO.FSB) < > [email protected]> wrote: > > > Hi All! > > I have researched about Jmeter. I'm a beginner of Jmeter. And now I > > have a question and hope everyone will help me. My question is: "What > > is the best value for Constant timers in Jmeter?" > > Should I use Constant timers or use Throughput Constant timers? > > Thanks you very much. > > Best Regards > > Dang Quoc Bao > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] >
