Jmeter - How can we calculate think time from response time? - jmeter

Suppose, I am adding some think time(Timers) in each HTTP request, but when I execute the test, in the report it shows response time as Sum of ThinkTime + actual response time.
How can I get actual response time from the result?

by default, JMeter does not include Timer's time in the response time of any HTTP sampler.
In case if you are using Transaction Controller to group the requests, then you can deselect the checkbox Include duration of timer and pre-post processors in generated sample in the transaction controller.

By default JMeter does not include the duration of:
Timers
PreProcessors
PostProcessors
into Sampler's response time unless you use Transaction Controller with Include duration of timer and pre-post processors in generated sample option selected. If this is the case and you use dynamic values in the Timer - you can consider using Sample Variables functionality to record think time into .jtl results file.

Think Time is the time taken by the user to read,
understand and take next action on the webpage.
So the time between a response and the net request
is the Think Time. This can be simulated by adding
a timer.

Related

Jmeter Constant Timer with dynamic parameter

I want to use HTTP request with timer.
Thread Group Config
CSV Data Set Config
HTTP Request work without timer. When I add a Constant Timer everything works but Constant Timer doesn't with delay time. I set Thread Delay 5000.
How can I solve this problem?
By default JMeter does NOT include the time, taken by PreProcessors, PostProcessors and Timers into Sample Result so you will not be able to see it anywhere unless you put your request under Transaction Controller and tick both boxes, to wit:
Generate parent sample
Include duration of timer and pre-post processors in generated sample
Once done you should see that your sampler duration should be increased by the amount of time you specify in the Constant Timer

Jmeter, delay http request with many extracted urls

i have a issue with to many calls to the server.
I have extracted several urls with the "regex extractor".
In the next step, a "http request" calls these urls by ${extractet-urls}
But all requests after the 8th url gets a error 500 response from the server.
I tried to input several timers between, before and everywhere else, but it hasn't an impact.
So my question is:
how can i delay in this single http request which calls all the extracted urls?
Thanks for your help :)
After the requeat you can add sampler ->Java Request. Then change classname to SleepTest and it'll wait 1 second (configurable)
Add a Constant Timer as a child of the HTTP Request sampler (see Scoping Rules for details) and provide desired delay there (in milliseconds). It will cause the relevant thread to "sleep" for the defined amount of milliseconds before executing the HTTP Request. See A Comprehensive Guide to Using JMeter Timers to learn more about using Timers in JMeter tests.
Another option could be using Test Action sampler to create a delay, it doesn't generate sample result so you won't see it in .jtl results file.
The final approach is depending on what you're trying to achieve and how your test is designed.
Alternatively, you can add a Thread Group and define a ramp up time, then put the request inside this group. The ramp up time takes the startup overload too.

How to measure the Test Fragment response time in jMeter?

My jMeter script performs visiting the Workout history page of the website.
While leading there the app sends 8 api requests. We put them into one Test Fragment but while running scripts in jMeter I get the response time of each HTTP Request.
Is there any possibility to get the response time of the whole Test Fragment?
My Test Fragment screenshot
It is simple. You just add a Transaction Controller in the Test Fragment. Move all the HTTP requests under the Transaction Controller.
If you are looking for only the total time of all the requests, then check the Generate parent sample checkbox.
you could definitely do this in beanshell, start a timer and then calculate the end time.
Also you might try something like the JC#gc package of extra plugins for something like responses over time.

Jmeter - timer does not work between threads in the same http request

I have a http request with a BSF postprocessor script where I try to collect some data from the request. I have 10 users who call this request. I want to add a small delay between each request and I tried using a constant timer. The problem I have is, sometimes 2 or 3 HTTP requests are executed at the same time and that causes some logic disturbances in my postprocessor script. I tried using a constant throughput timer and still I end up with the same result. What is the correct way to send requests at constant time intervals?
A timer is specific to each thread so what you are tring to do will not work.
If you want to ensure your query is only executed by 1 user then use Critical Section Controller:
https://m.youtube.com/watch?v=HVVyTvoTmdc
http://jmeter.apache.org/usermanual/component_reference.html#Critical_Section_Controller
Thanks for the responses. I was finally able to achieve it just by increasing the ramp-up time. Thanks Mario for your quick response.

Think time between Transaction Controller

I am using Transaction controller for my testing process, and I have 5 transaction controllers. Now I want to specify think time (Timer) between each Transaction controller say 300 ms.
When I add constant timer, then every sampler takes 300ms think time to process and because of this the overall response is increased a bit.
Is there any other way to give think time to only transaction controller and not individually sampler?
You can work it around as follows:
Add a Beanshell Post Processor as a child of the last request in each Transaction Controller
Put the following code into the Post Processor's "Script" area:
Thread.sleep(300L);
Configure Transaction Controller to
generate parent sample
not to include duration of post processors and timers into the generated sample
See Using JMeter's Transaction Controller guide for more detailed explanation.
I could think of 2 options that would provide required solution:
1)The easiest way would be to put the timer to the first request of the following transaction controller.
OR
2) At the end of the Controller add Test Action which can be found under Sampler where you can provide PAUSE time in milliseconds.
Hope this helps.
Add a Test Action and select pause. Set this to 0ms and then add a Gaussian Random timer to the test action. Configuring timers this way will allow you to run the test with pauses or without (for debugging), test actions configured as timers will not be skipped when clicking "Start No Pauses", while the Gaussian timers attached to test actions will.
The best way to do this is via "Add think times to children" on the Recording controller. This will insert a "think time" action between each controller. Then you specify the duration in ms in each Think Time action.
Usually, I would use ${thinkTime} as the duration, then specify thinkTime = 10000 or similar in the "User defined variables" config element you can add to the top of your project.
The think time is between transaction controllers, not between requests in a controller.
I am using jmeter 5.3.

Resources