Throughput Shaping Timer. Also, it works only on a minute level so you need to properly calculate the ramp-up period and let your test run long enough. Here is my script detail:->Simple Login request. Other elements, e. The various timers provided by JMeter include the constant timer, uniform random timer, constant throughput timer, Poisson random timer and Gaussian random timer. Timer’s Present in JMeter. JMeter timers mainly include Constant Timer, Uniform Random Timer, Precise Throughput Timer, Constant Throughput Timer, Gaussian Random Timer, JSR223 Timer, Poisson Random Timer, Synchronizing Timer, BeanShell Timer. If you introduce artificial delay of 3 seconds - it will make the overall throughput lower. Throughput timer is in root of test plan, Where as other timers are only applicable within scope of controllers. Say a request returns on average within 1 second and you have no think times in your test then to simulate 300 requests per minute you only need 5 threads. Follow edited Mar 4, 2021 at 7:35. Ori Marko Ori Marko. 2. 让线程暂停一个随机时间。由两部分组成： Random Delay Maximum 随机延迟部分; Constant Delay Offset 固定延迟部分; 实例： 1、添加线程组，添加 Uniform Random Timer ，添加HTTP请求，设置固定延迟部分未2000毫秒，随机延迟部分在2000ms。也就是线程延迟在2-4s之间For example, if you need 100 RPS, then “Target Throughput” value should be 6000/min in Constant Throughput Timer. Ramp-up is the time for JMeter to kick off the virtual users from point 1. asked Mar 4, 2021 at 6:07. With Constant Throughput Timer you can only pause JMeter throughput (number of requests per minute) to the desired rate but it works precisely enough on minute level, if you need second-level. 2. (2) Throughput Controllers to distribute the load in Percent [20% and 80% of total 24. So you need to supply the sufficient amount of threads in the Thread Group. Sorted by: 2. Move the Constant Throughput Timer under the request. This way, You can use constant throughput timer in your load test plan to. User variables can be referenced in any field of any JMeter Component. In case you have only 1 request as in your scenario then it will generate Throughput of 20 request/sec (sometimes 20. La principal diferencia entre estos dos temporizadores esta en que el CTT inserta un pausa constante mientras que el CTT. . 1. You can specify the pause in ‘Thread Delay’ field. Test Case 1: - 3 requests per minute - 1 request each 20 seconds. Poisson. A JMeter Timer is a built-in plugin tool for JMeter that can help with spacing out your sample requests. Share. So it's your job to provide sufficient number of threads in the Thread Group. 30. Add two entries to the "User Defined Variables. In both the cases structure of the test will be like the following:Be aware that Constant Throughput Timer is accurate enough on minute level so it can start pausing the threads only after 1 minute. Click Add –> Timer –> Constant Timer. The JMeter Ramp-up Period is the amount of time in seconds it will take Apache JMeter™ to add all test users (threads) to a test execution. If 20 users process 2400 records per hour and each record assumes 3 web page calls, it means that 7200 requests will be made in one hour which in its turn stands for 120 requests per minute (this is what you should enter into the timer's "throughput" area) or 2 requests per second. If you have 10 virtual users which can be executed at rate of 10 requests per second you will not be able to reach 20 requests per second without. JMeter Throughput by Example. so I used a ultimate thread group and set the threads to 200 and ramp up was 200seconds. 3. JMeter offers several options to control the load. testelement. 3. JMeter threads model assumes waiting for the response prior to sending the next request, if your application won't be able to handle more than 30 requests per second there is no way to get 40 requests per second using HTTP Request samplers. To get request running each 5 seconds set "Target Throughput" to 12 requests per minute (1 request each 5 seconds) So you will have requests firing as per your requirement: For request which needs to be executed once per 5 minutes do the same but set "Target Throughput" to 0. 8K subscribers. The number of requests per second has to be controlled by using constant throughput timer (or the one from jmeter-plugins). Introduction to JMeter Throughput. However, in one case I need an additional constant timer because I need to wait a certain time between two requests. Constant Throughput Timer: This timer. I have used the constant throughput timer before, also as child of certain requests. JMeter: Not enought delay between HTTP samplers. Có rất nhiều timers được cung cấp trong JMeter: Constant Timer, Gaussian Random Timer, Uniform Random Timer, Synchronizing Timer, etc. We know that JMeter is an open-source, free tool used to conduct load and performance testing on static and dynamic web applications. Constant Timer adds a delay after the request completes (not after start), which doesn't fit either. Precise Throughput Timer. Unless you're doing spike testing you should be increasing the load gradually as if you release all the users right away you will get much less information and in case of gradual increasing the load you will be able to correlate it with increasing response time and. Constant Throughput Timer. July 1, 2023 by PerfMatrix. Precise Throughput Timer. Updated February 14, 2023. Despite word "Constant" in its name it doesn't have to be constant, you can put a JMeter Property in the "Throughput" input field and change it on the fly. Constant Throughput Timer with a target throughput of 12000. In JMeter you can control the connect/response timeouts at the "Advanced" tab of the HTTP Request sampler (or even better HTTP Request Defaults) where you can increase the default timeouts to the desired values:. Another option is implementing pacing. The value can be changed in various ways: You could set the throughput using a property or variable. So your approach with different Thread Groups is valid. Let’s now re-run our test plan and check the View Results Tree. The easiest way of controlling the number of requests per second (throughput) in JMeter test is using Constant Throughput Timer. The first request wil receive the correct amount of throuhput the first time, and so will the 2nd request. 4. How do I achieve a certain TPS in Jmeter. In JMeter, the ramp-up period defines the time period within which all the specified users get in running state. Throughput Shaping Timer is a plugin and you need to install the plugin. 3. The Constant Throughput Timer will add random pauses between requests during test execution to match the required throughput figure (samples per minute). Constant Throughput Timer can only pause threads in order to limit JMeter's throughput to the defined value. In some cases, the Timer is used to implement the Pacing. I want to run this test for five or ten minutes. java:131. Below timers are used to implement pacing in Jmeter to achieve the desired load/Business transactions. The time is calculated from the start of the first sample to the end of the last sample. You can have one HTTP header manager at Thread level or none (as per request type). As I can see, Constant Throughput Timer ensures requests completion rate (for example, if I specify "2" in the timer, it will slow down the thread so that 2 requests are finished per minute) My test plan with Constant Throughput Timer. Constant Throughput Timer is available out of the box with JMeter. Instead of focusing on trying to hit the same request at the same time, which is fiddly in JMeter, you should setup your test to be a realistic representation of the sort of load you want your application to support. In-depth Analysis: Throughput Controller in JMeter and Splitting Threads to Requests. Test execution result will looks like below for constant throughput timer jmeter example. 1. If you want to execute 300 000 queries in 24 hours you need to introduce a rate limiting on JMeter side to execute 208. Step 3. Sample Time of Sample 2 is 172 ms. Mouse hovers "Add". As I keep on increasing the target throughput of JMeter at runtime, I noted that the actual achieved throughput value is limited by mainly 2 factors -. Total Http Requests - 24, Total Http Request/min - 12, Test Duration 2min, Waiting. Follow. HTTP Sampler for GET call is used. A good position would be a direct child of the Thread Group. g. Lets consider below load scenario for example: Total no of users = 5. Add a Test Action Sampler In the "Duration (milliseconds)" field, set the value as simply $ {mydelay} Right Click Test Action Sampler > Add > Timer > Beanshell timer. That means 40 samples has been executed in 1 minute. Synchronizing Timer 同步定时器. Precise Throughput Timer (PTT) Como mencionamos previamente, el Precise Throughput Timer (PTT) y Constant Throughput Timer (CTT) tienen como propósito regular el arribo de hilos (Vusers). Doing the math, it should send a request every 5 milliseconds, and being 200 Threads, it should send 200 requests/second (200*5 = 1000ms). jmeter; performance-testing; Share. Gaussian Random Timer. Open your JMeter script and right click on Thread Group. This timer generates Poisson arrivals with constant throughput. If the machine stamps sixty widgets in one minute, it’s throughput is one widget per second. So overall 20 users - ramped up in 1 seconds. “Calculate throughput “ option can be varied based on the current thread, all threads in your test plan. Timer in JMeter is easy but crucial part of JMeter where we have to manage the thread user count and time to apply the load to the application. Constant Throughput Timer. Constant throughput timer is used to control the execution of requests according to the specified throughput. This would allow you to adjust it via Command Line in real time, as the test script is being executed. Right click on "Test Plan" node. 50 (you may need even more)タイマーは、JMeterが次のリクエストを送信するのを遅らせるために使用されます。. Also its effect is not immediate so during 1st minute of your load test you need to control virtual users arrival rate using Ramp-Up Period setting on Thread Group level. A s the name suggested, Uniform Random Timer is used to generate the random delay in a uniform manner. org. JMeter Constant Throughput Timer is used as a goal-oriented element which helps to achieve the desired throughput. Step 3. e. Follow answered Oct 22, 2015 at 16:42. Alternative options are: JMeter also provides a useful timer component to configure or set a constant throughput value to test the application load. Step 2. The above configuration will add a 5-second delay before the execution of each sampler, which is in the Constant Timer’s scope. Constant Timer. JMeter's Constant Throughput Timer can only pause the threads in order to limit requests execution rate to the desired value, it won't kick off extra threads if current amount is not sufficient. The time is calculated from the start of the first sample to the end of the last sample. These timers will pause the threads and try to achieve the specified throughput value. For each thread, the variable will be assigned one of the values from the series in sequence. And to manage throughput per minute you could use "Constant Throughput Timer". I think you need to consider switching to Constant Throughput Timer, 100 transactions per hour == 1. 0. Essentially, it sticks with a target throughput very closely, and doesn’t allow for the flexible. 4. You can add this element to your test plan by following “ Thread Group -> (right click) -> Add -> Timer -> Constant Throughput Timer ” path. In JMeter, there are 9 different Timer types. 目标吞吐量（target throughput)单位是每分钟发送的请求数. Do not select "This thread only" value for Timer added at root, as it will change the result. Constant Throughput Timer: Java 8 incompatibility #3368. e. For example, if the number of threads is set to 10 and the ramp-up time is set to 100 seconds, JMeter will use 100 seconds to start and run 10 threads, and each thread will start 10 seconds after the previous thread was started. In planning our load tests, our goal is often to measure whether or not our application (not just the. 6 requests per minute or 2. Constant Timer; Uniform Random Timer; Precise Throughput Timer; Constant Throughput Timer; Gaussian. For example, this can be used to assign a distinct user id to be used by each thread. correct use of throughput controller (JMeter) Main thread is set to 50 concurrent users (looping - as testduration will be scheduled). JMeter™ User Save time for the Thread Groups creation. If you need to limit JMeter throughput to 60 requests per second only you can do it using Constant Throughput Timer: Add Constant Throughput Timer to your Test Plan ; Set "Target Troughput" to 60; Set "Calculate Troughput based on" to All active threads; This way JMeter will "pause" its threads (virtual users) to slow them down to 60. This capability is really helpful for debugging tests in real time. Throughput Controller - You can set the Max number of executions, OR the Percentage of executions of the sample (i. With regards to point 1 be aware that Constant Throughput Timer can only pause threads in order to limit JMeter's throughput to the desired number of requests per minute. What are Samples in JMeter? It generates one or more sample results. 0. Please suggest what should be the workaround of it? You can go for Constant Throughput Timer, despite the word "constant" in its name it doesn't have to be constant, you can use __P() function for specifying the desired throughput and amend it from Beanshell Server, another Thread Group, using JSR223 Test Elements, etc. it worked. Save my name, email, and website in this browser for the next. Precise Throughput Timer. Request Oriented Goal: In such types of goals, we need to achieve the defined number of requests in an hour. JMeter. Throughput, essentially, is the. The threads in my thread group. Constant Throughput Timer config: Target Throughput is 600. Timers can only pause JMeter samplers execution rate in order to limit JMeter's throughput to the desired value so you need to supply sufficient number of threads in the Thread Group. 2. Constant Throughput Timer is used for pausing the threads to slow down overall execution speed to reach the target throughput. And if you changed load generator machine or server. Despite word "constant" in its name, you can use i. Constant Throughput Timer will limit JMeter to the desired rate which will give you 10 000 requests in hour (assuming your application will be able to handle the requests fast enough) In the majority of cases it's easier to use custom Thread Groups such as Ultimate Thread Group. On top of that, it tries to maintain the exact amount of arrivals for a given timeframe ( throughputPeriod ). I ended up using constant_throughput to control the number of requests per second. I want to measure the response time of this 100 users login which I've. 2. Add a Test Action Sampler In the "Duration (milliseconds)" field, set the value as simply $ {mydelay} Right Click Test Action Sampler > Add > Timer > Beanshell timer. Also be aware that: Although Constant Throughput Timer accepts value in Requests/min and you are saying that you will use 120/sec, so you will have to provide a value of 7200 in Constant Throughput Timer to achieve 120/sec. Throughput controllers for all API calls is set to 100% 'Percent Executions' with 'Per User' ticked off. Given you have Loop Count set to 1 JMeter will shut down. either execute this 100 times OR. JMeter is not capable of immediately stopping 1000 threads when the Throughput Shaping Timer reaches its duration limit, JMeter "tells" threads to stop one 1200 seconds pass and it might take a while to gracefully shut the threads down. July 1, 2023 by PerfMatrix. I would say that these timers are mutually exclusive. Figure 01: JMeter Timer Elements Scope of JMeter Timer: 1. This component introduces pauses to the test plan in such a way as to keep the throughput as close as possible to the target value specified. JMeter also provides a timer component, ‘Constant Throughput Timer’, which you can use to set the value of Transactions per. Because JMeter sometimes displays throughput in per minute and sometimes in per second, whereas the hits per second is always per second. This will add Constant Timer at Thread Group level. 1. Recording scripts is where you will spend most of your time. Constant Throughput Timer : The Constant Throughput Timer is like the Precise Throughput Timer, except that it has fewer settings. You can go for Constant Throughput Timer, despite the word "constant" in its name it doesn't have to be constant, you can use __P() function for specifying the desired throughput and amend it from Beanshell Server,. Jmeter Throughput Shaping Timer sending more requests then desired. In the JMeter script, Constant Timer is used to add a constant delay before processing a sampler. The difference between the uniform random timer and other two random timers (Gaussian and Poisson) are: 1. Concurrent users are a different way of looking at application traffic. you have 2 users and 2 seconds response time - the load will be 1 requests per second; you have 4 users and 2 seconds response time - the load will be 2 requests per second; etc. I have tried JMeter with a constant throughput timer with throughput = 1500000 per second and running 1000 threads. 20 requests per second. Jmeter measures throughput by observing the. Plus “Constant Delay Offset”. 1) with Constant Throughput Timer value as 1200/min with "All active threads" and Timer added at the root of script. e. However from what I can see from your Summary Report the majority of samplers are executed at rate of 3. HTTP Sampler ii. We will conduct a sample load test with 100 concurrent users (threads) and evaluate the throughput value. I would suggest going for Constant Throughput Timer. Constant Timer at Thread Group level. Allocate the target throughput to required number (30 in this case). To apply a timer after a sampler, either add it to the next sampler, or add it as the child of a Test Action Sampler. Leave a Comment Cancel reply. Target throughput (in samples per minute) value lets you manage the frequency for your requests. This video features #Constant #Throughput Timer in #JMeter. log can be very useful for troubleshooting JMeter-specific issues. However it is precise enough only on "minute" level so you might need to play with ramp-up period. Adding a constant timer on a transaction. 10 000 requests in one hour is something like 166. Precise Throughput Timer is more "precise" but a little bit harder to use as you need to provide controlled throughput. apache. The Constant Throughput Timer is again a more powerful Timer, not in the same way the previous. The most intuitive thing I could think of was using Constant Throughput Timer to control the number of requests sent,. Test execution result will looks like below for constant throughput timer jmeter example. 0 requests/minute is saved as 0. To achieve this look at the Constant Throughput Timer. You can consider switching to Concurrency Thread Group and Throughput Shaping Timer. The total number of requests JMeter will be able to make will mostly depend on application response time. With 100 threads you will get 50 requests per second. java by adding it to the source directory of my project folder. This video features Precise Throughput Timer in #JMeter. Concurrency depends on your test plan and application response time. Like this: Throughput Controller config: Based on is Percent Execution and Throughput is 20. I have tried with below jmeter tools. Testing without a JMeter timer can create irregular test results because the simulated requests will come in a different pattern than what is seen in a real-world situation. 2. control. The timer tries to produce a constant. This is "closed workload" approach, and it has major drawbacks (see here why). If current number of threads is not enough in order to. -> Ultimate Thread Group: Start Thread Count-100 ->Startup time-120 ->Hold load for-120 ->Shutdown Time-60 -> Constant Throughput Timer- Target Throughput(1200/min). Constant Throughput Timer. Constant Throughput Timer – introduces variable pauses, calculated to keep the total throughput as close as possible to a given figure. Config Elements, b) a Thread Group (probably Ultimate), c) a Constant Throughput Timer (to limit the overall transaction rate), then d) 8 ThroughPut Controllers, and then INCLUDE the scripts in respective controllers, e) Listeners. Bạn sẽ nhập 1 giá trị ngẫu nhiên vào Constant Timer thay vì giá trị cụ thể. Constant Throughput Timer. Test Plan. I even tried giving 8 users, rampup-1sec, loopcount-infinite and duration-1hour, with constant throughput timer set to 480 req/sec but it ended up giving me total processed samples as 28700; Would be helpful if I could get any other approach where I could exactly process 26. Throughput shaping timer or CTT to control the expected throughput. 3. Constant Throughput Timer - You can set the amount of Throughput (samples per minute) by adding a timer after the request to slowdown the script, so it fits the throughput value. Download. You can see that Start time difference between 1st request and 41st request is 1 minute. So you creating the excessive number of threads and then the timer will. So the real throughput depends on 2. Gaussian Random Timer. Right click Thread Group > Add > Timer > Constant Timer. Case 2: With sleep time (Using Constant Timer) In this case, throughput will be controlled by introducing sleep time in between threads. JMeter – Constant Throughput Timer. Apache JMeter is an open source Java based tool that enables you to perform functional, load, performance and regression tests on an application. Despite its name Constant Throughput Timer doesn't have to be "constant", you can define throughput default value using __P(). How to generate number of requests per second for one user. JSR223 Timer. "Time cap" is not a term used in the JMeter docs, but assuming what you mean, it can be set between loops by using Test Action or other JMeter mechanisms if. Second, it works precise. jmeter. TestElement. I have a requirement that in ultimate thread group , constant throughput value needs to be changed for every 5 mins using beanshell pre-processor. JMeter Constant Throughput Timer Example. This way, You can use constant throughput timer in your load test plan to achieve. JMeter Properties are global, can be accessed from different thread groups and persist all the time while JMeter is running. Constant Timer. If for some reason you need to proceed with JMeter take a look at Constant Throughput Timer which can limit requests execution rate to the desired value. Closed asfimport opened this issue Apr 25, 2014 · 5 comments Closed Constant Throughput Timer: Java 8 incompatibility #3368. GitHub Repo: has mentioned that constant throughput variable value can be changed using a JavaScript or BeanShell function to provide a changing value. Of course, if the server is not able to handle such a load, the throughput will. Relation between Constant throughput timer, transactions per sec and throughput in summary report 0 How to get number of throughputs per second as 500 in jmeter54. Constant Throughput Timer can only pause the threads to reach specified "Target Throughput" value so make sure you provide enough virtual users (threads) to. 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 you must supply enough threads in the Thread Group to create more requests per second than you're trying to achieve and then limit the number of requests per second to the desired rate using Constant Throughput Timer. log. If the machine stamps sixty widgets in one minute, it’s throughput is one widget per second. Precise Throughput Timer. org. In JMeter, the ‘Timer’ element simulates the real user behaviour of taking a pause on a webpage. If Ramp-up Period is the time taken by JMeter to create the number of threads per iteration and if the duration of the test is 50820 seconds, then I should have 508200 samples only ( 50820/10 * 100 ). Name Email Website. JMeter cannot send requests faster than your application is capable of responding. Constant Throughput Timer: acts precise enough on "minute" scale, if your test lasts less than minute it might not apply the throughput. Simple Controller i. When I specify 50 threads on the Thread Group and a throughput of 1 sample per minute, I see 50 samples go through immediately and then 1 sample per minute after that. As per documentation: Set Target Throughput = 40. Constant Throughput Timer Controlando el número de solicitudes por minuto (es decir, la forma de controlar el rendimiento) para controlar si se debe retrasar la pausa. I would say that these timers are mutually exclusive. However, I want to make requests as a single user. First of all try increasing the number of threads. The main goal of. If it is. 作用：让jmeter以指定数字的吞吐量进行压测. 0. If you want JMeter to run 5 concurrent samplers each minute you need to go for different setup, to wit: Your Sampler. Constant Throughput Timer: acts precise enough on "minute" scale, if your test lasts less than minute it might not apply the throughput. Constant Throughput Timer is only capable of pausing JMeter threads in order to slow them down to reach the target throughput. Thanks @Dmitri. Concurrency Thread Group doesn’t provide the ability to define initial delay, step transition and ramp-down - which the Stepping Thread Group does. Constant Throughput Timer will be enough for your scenario. To elaborate - if a Constant Throughput Timer is set to 1 sample, and 1 thread is created, then the Transaction Controller is still not considered a singular sample as far as CTT is. Constant Throughput Timer. Constant Throughput Timer added with throughtput = 10 and Calculate Throughput based on = all active threads. Share. I am trying to configure a test for signup-login with invalid credentials imitating bruttforce attack. And I set Loop Count: forever. If your application can only serve 1000 requests per minute - you will have 1000 requests per minute no matter how many threads you have in the Thread Group or how many requests per minute you specify in the Constant Throughput Timer. Very silly mistake with a conclusion: Check your throughput value, test for longer periods. There are 3 options to configure weighted load and highlight options provided by JMeter. Here are the workarounds: Calculate the number of threads you need to achieve your. Skip to content Toggle navigation. JMeter – Constant Timer. If you want 30 transactions in total as fast as it possible - set the number of loops to the 30. When the throughput is saved to a CSV file, it is expressed in requests/second, i. Constant Timer. Despite its name Constant Throughput Timer doesn't need to be "constant", you can define the desired throughput via JMeter Property using __P() function like ${__P(throughput,)} and amend the property value using i. Right click on Thread Group > Add > Timer > Constant Throughput Timer. JMeter also provides a timer component, ‘Constant Throughput Timer’, which you can use to set the value of Transactions per. Share. A Constant Throughput Timer paces the samplers under its influence so that the total number of samples per unit of time approaches a given constant as much as possible. Set the timer value to however many milliseconds you need (in your case 120000), and it inserts a delay between all requests in that thread group. 0. So you creating the excessive number of threads and then the timer will. Constant Throughput Timer will be enough for your scenario. Issue: If i run the test, I was expecting the min throughput of 15 requests/sec - upto 16 requests /sec. Long time JMeter users had to try their tests on and on, finding exact number of threads and timer delays that produce desired number of requests per second (RPS) to server. GitHub Repo: that the most simplest ways to control throughput in your tests is using either standard "out-of-box" Constant Throughput Timer or custom Throughput Shaping Timer from jmeter-plugins collection. Do not select "This thread only" value for Timer added at root, as it will change the result. I use JMeter for web testing. Let’s think about an end-to-end scenario for an e-commerce website. The Uniform Random Timer pauses the thread by a factor of: The next pseudorandom uniformly-distributed value in range between 0. The full jmeter. Inside each thread group I have one parent Transaction Controller and a Constant Throughput Timer, trying to keep the total generated load of the Thread Group at 2 Transactions per second; Underneath the transaction controller, I have 2 child Throughput Controllers: 1 trying to generate 8. 0. jsr223 request Constant Throughput Timer - 100 rpm. 1). I am searching how to increase the number of sent requests per second . jmeter_loc – the full path to the root jmeter folder. 1. {"payload":{"allShortcutsEnabled":false,"fileTree":{"src/components/src/main/java/org/apache/jmeter/timers":{"items":[{"name":"gui","path":"src/components/src/main. Before we list these, it is important to state that they are the ones that come shipped with JMeter as standard, other custom timers are available, but these are the default: Constant Timer, Gaussian Random Timer, Uniform Random Timer, Constant Throughput Timer, Precise Throughput Timer, Synchronization Timer, BeanShell. If you want to slow down JMeter to the desired number of requests per minute it can be done using Timers. A user logs in, goes to the main page, searches for a product, sees. 4. 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. Right click on Thread Group > Add > Timer > Constant Throughput Timer. Target Throughput behavior of Constant Throughput Timer in JMeter. 7. Throughput of 300 requests per minute gives 300/60 = 5 requests per second Constant Throughput Timer works on minute level so make sure that your tests lasts longer than 1 minute; Each JMeter thread representing virtual user executes nested samplers upside down, when. Constant Timer. So you need to supply the sufficient amount of threads in the Thread Group.