how to find in jmeter response time breakdown - jmeter

How to see the response break down time in Jmeter ? I can see the response time taken for a particular request. My requirement is to see the response time break down like in FireBug.
How to do this in jmeter ?

Related

In Jmeter getting a blank/null response for maximum of the samplers, how can I overcome it?

I have a script in which I have 30 to 40 http samplers and say for sampler number 10 I'm getting like 80% samplers response as blank or null, due to which rest of the samplers below it are also getting impacted as the result of variable not getting extracted in the post processor.
The response time at the 90th% for the 10th sampler is around 25sec.
I want to know is there any thing which I can do in the script to avoid this blank issue or is it something which app server is sending as the result of not able to bear the load.
Will changing the response timeout in the HTTP request default to higher value say 5 Min will resolve the issue?
Please help
Thanks.
You might be interested in Extractor Success Assertion plugin which checks whether the variable(s) declared in the PostProcessor(s) still have(s) default value(s) and if nothing has been extracted - it fails the relevant Sampler.
So you could use any other "Action to be taken after a Sampler error" than Continue in your Thread Group to decide whether you want to start new iteration or stop the thread/test when the response is blank.
Extractor Success Assertion plugin can be installed (and kept up-to-date) using JMeter Plugins Manager

Jmeter response time confusion, In load testing what time do I need to consider as the response time

I am using Jmeter for performan testing, I believe elapsed time is the response time which I am considering(i.e.,85 milliseconds). When I hit the same request from postman It is taking very less time(i.e.,35 milliseconds) so I want to know where my JMETER giving correct results or not
Elapsed time consists of:
Connect time (it might include SSL handshake)
Latency
Application response time
Given you're running the same request (URL, body, headers) from the same machine you should have similar results.
Try running the request for more times, i.e. 10 or 100 using newman and JMeter (set number of iterations in Thread Group to 100). If you will still be seeing differences - consider comparing the requests using an external sniffer tool like Wireshark, it will give you more insights regarding what's going on under the hood.

JMeter load test async api

I make a post call to an api, and don't need to log the response (post to google cloud pubsub), but after that i need to measure time it takes for the data to be processed and appear in another GET request (need to keep hitting it unless the response changes).
I also need to measure the performance under load. I tried JMeter but could not figure out a way to get what I wanted. Is there a way to do this in Jmeter? or some other tool that will let me do what i want
You can put your "another GET request" under a While Controller so JMeter will keep sending this request unless it will match some defined condition
You can put the whole sequence of requests under the Transaction Controller - this way JMeter will measure end-to-end duration of the whole scenario

Jmeter - wait for a specific response and collect total response time

our application is testing file upload and I'm curious if I can make Jmeter wait for a specific response and then report collective time.
What I have now is:
whileLoop()
-- HTTP Sampler
-- JSON Extractor
JSON Extracor pulls out a specific field and if it's not null then the loop stops.
The problem is that JMeter doesn't report response time as a sum of all the responses (response times) it had to make and that is what I'm looking for. Is there a way to implement this?
You can put this code inside a Transaction Controller .
You should get what you want.

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

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.

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