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:
Related
I don't know if I have placed the timer at the correct location. I am not able to get Precise Throughput Timer working.
Any JMeter component needs to be placed according to JMeter Scoping Rules
How do you expect the timer to "work" given you have only one thread and one iteration in the Thread Group especially given your test finishes in 500 milliseconds and you configured the test duration as 500 seconds
If you want to limit your test throughput to 1 request per second for 1 thread and 1 iteration only - I can only think of introducing pacing as none of the existing timers won't be able to do this given that short test duration
I have a task to create profile load on the app. Profile load: Vuser 7 , 50 requests per hour. Create load dinamics: ramp-up 2 min , loading 20 min , end of loading 2 min. How to calculate this and choose thread group(and timer)?
Your test looks rather weird as 50 requests/hour is less than 1 request per minute and it is unclear why do you need 7 users and ramp-up/ramp-down periods.
No matter.
The easiest way of implementing your "load pattern" is using Ultimate Thread Group. It is not a part of normal JMeter distribution, you need to install it using JMeter Plugins Manager. The relevant configuration would be something like:
The easiest way of slowing down the requests to 50 request per hour is using Precise Throughput Timer, the appropriate configuration for your scenario would be:
You can check the actual throughput and the number of executed samplers using i.e. Aggregate Report listener. Given your test scenario lasts 24 minutes you should have around 20 sample results.
I'd like to, independently of any other config regarding amount of threads, ramp up time or anything else, just stop the test if it has been running for more than, for example, 2 hours.
Currently you have in Thread Group Scheduler Checkbox, when you click it
You can define Duration in seconds,
In your case for 2 hours enter 7200 (60 *60 *2)
Another option is putting all requests in Runtime Controller with similar value.
You can also do scripting in While Controller with check time (similar to Dimtri T answer):
${__groovy(${__time(,)} - ${TESTSTART.MS} < 7200000,)}
I have created a set and just confused with the Loop Count and Ramp Up period.
I have a test set with the following parameters.
Threads = 30
Ramp Up Period = 30
Loop Count = 100
As per the page on
quora.
I suppose:
a) If Loop count is Zero, then each of the 30 threads will be starting every second. As per the shared the web page, I guess 30/30 * 100 ie 100 threads/requests will be hitting the server every second. Please correct me if I am wrong.
b) As per the above parameters, there will be a total of 30 * 100 threads/requests. Does this mean all the 3000 threads/requests will be sent within 30 seconds [ Ramp Up period ]
Assuming you have 30 users and 30 seconds ramp-up
JMeter will start each virtual user each second
Each virtual user will start executing samplers upside down (or according to the logic controllers, if any) as fast as it can (if you don't use timers) so the delivered load can be either more or less than 30 requests/second, it depends on how fast JMeter is executing requests and on your application response time as JMeter will wait for response from previous sampler before starting new one
When virtual user finishes executing all the samplers defined in test plan it will start over and do point 2 for 99 more iterations
When virtual user won't have more samplers to execute and loops to iterate it will shut down
A couple of tips:
You can use Server Hits Per Second listener to see how many requests per second you are actually making given your test plan configuration
You can control the number of requests per second via Constant Throughput Timer
Consider upgrading to JMeter 3.2 as newer JMeter versions normally contain new features, performance improvements and bug fixes
according to jmeter manual ramp up is:
How long JMeter should take to get all the threads started.
If there are 10 threads and a ramp-up time of 100 seconds, then each
thread will begin 10 seconds after the previous thread started, for a
total time of 100 seconds to get the test fully up to speed.
So if your goal is to reach 3000 request within 30 seconds the above wont do, it might take more than that depending on how much it takes to finish the requests you are sending.
If you are looking for Throughput you can add an aggregate report listener which calculates the throughput for you and depending on the results you can configure your thread properties to reach your goal.
Reference :
Jmeter user manual
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.