I need to execute few HTTP Requests for a regular interval of every 10 seconds during test. I added them to loop controller. Is there any way to do this in JMeter or LoadRunner?
The easiest way of implementing this in JMeter is adding a Constant Throughput Timer and configure it to send 6 requests per minute
LoadRunner's equivalent can be done via Think Time and Pacing
Related
I am using JMeter in order to test some environment. I build a thread group in JMeter that includes a couple of https requests with a delay between each of them.
somthing like this:
1. https request
2. random delay
3. https requst
4. random delay
6. https requst
7. random delay.
But for some reason the delays take much longer than they should and the test take much longer than it should (a delay of only 3 seconds or 3000 milliseconds takes 13 minutes). I try switching the random delays to constant ones but it still takes longer.
I tried searching online for a reason but I couldn't find a clear answer.
You should put the delay level under the request so it will impact only a single request,
Currently each delay affecting all the requests in the same level and that is causing the inconsistency
See JMeter's execution order
The only reason I can think of is that your test setup violates JMeter Scoping Rules
If you design your test like this:
All 3 timers will be executed before each request so instead of 3 seconds of waiting time after sampler you will get 9 seconds of waiting time before each sampler
If you want to apply a random delay before each sampler - leave only one timer.
If you want to apply different delays before each sampler - make timers children of the respective samplers:
If you want delay after the sampler instead of before the sampler - use Flow Control Action sampler instead of timer
I am quite new to jmeter and try to do a performance test of my application. I want to generate 100 request per second scenario however my server takes 3-4 secs to respond to every request. I am running my test for 1 mins which means number of requests fired should be 60k within the time span. However jmeter actually waits for the response before it sends next request. Which is not what I am looking for.
How can I make sure that jmeter sends a new requests every second with 100 req/sec without waiting for the response so that the number of requests fired per min is 60k.
I am trying to use constant throughput timer with 60k as request per min, however that is not helping. Here is my test screenshot.
EDIT
I have done like this
And Throughput shaping timer being as
So ideally I should get number of samples as 3000?, still not getting that.
Make sure you provide enough threads (virtual users) under Thread Group, "vanilla" JMeter won't kick off any extra threads if actual throughput is less than target one you specify in the Constant Throughput Timer.
Another solution would be using Concurrency Thread Group along with the Throughput Shaping Timer. They can be tied together via feedback loop so if you use these test elements JMeter will start more threads if the current amount won't be enough to reach the desired requests per second rate.
You can install both using JMeter Plugins Manager
My suggestion is to consider using the Arrivals Thread Group. This TG will allow you to configure the desire average throughput (ATP); the TG will instantiate the required threads needed to achieve the ATP goal.
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.
I am running my load test for a duration of 1 hour,in between the test I want a scenario to run for a duration of 1 minutes at regular interval of 15 minutes.
In jmeter,currently I am able to simulate for all the others scenarios except for the burst mode.
How do I keep the delay for 15 minutes and trigger the request for duration of 1 min?
How do I achieve the TPS for the burst? Currently I have to manually trigger jmeter script.
I would suggest doing the following:
Add a separate Thread Group.
Configure ramp-up and thread count as required.
Add a Constant Timer, set Thread Delay to 900 000 (15 minutes = 900 seconds, 1 second = 1000 ms)
Add a Runtime Controller, set Runtime to 60.
Add a Loop Controller, set Loop Count to Forever.
Place your burst test logic under the Loop Controller.
If you need to define requests per second rate during spikes use Constant Throughput Timer
I came here since I had the same issue or similar issue of "simulating" burst like request during the load test. I tried to follow the accepted answer but didn't get it to work (perhaps I misunderstood some steps), anyway; I based my solution in #esteveavi comment Loadtesting in burst mode in Jmeter from the original post above. And ended up using JMeter's "Ultimate Threat-Group" plugin with something like the following test plan set up:
I have a jmeter test with about 50 users. the beginning of the test performs a login and some set up stuff. I don't want this all to happen at the same time as there would be way too much contention for a part of the test I am not interested in. So I have a ramp up period of 10 seconds. There is then one specific HTTP request where I want the 50 users sending over 1 second interval i.e. a HTTP request every 20 ms. This is to ensure the 50 users are excuting this part concurrently. Ideally, something like a thread.join() after the login / ramp up would help out here, followed by another guassian timer.
Is there something similar to thread.join() in jmeter?
To mimic thread.join you can use a Synchronising Timer, this will block n threads until they reach a point and then execute them all at the same time.
If you want this request load of 1 every 20ms to continue (rather than a single burst) then you can use a Constant Throughput Controller to define the actual rate of requests you want JMeter to run. You can configure each thread to run at a rate of 60 requests per minute and this will give you one hit every 20ms (based on 50 threads with response times always less than 1 second). You can also tell JMeter to just make sure your load is 1/20ms no matter how many threads you use and it will dynamically adjust. This option is perhaps more useful in the context of load testing.
Note. When using a CTT controller, you would probably want to put the login request either in a Once Only COntroller or in a setup thread group.