Constant throughput timer in jmeter. Request Oriented Goal: In such types of goals, we need to achieve the defined number of requests in an hour. Constant throughput timer in jmeter

 
 Request Oriented Goal: In such types of goals, we need to achieve the defined number of requests in an hourConstant throughput timer in jmeter  Throughput controllers for all API calls is set to 100% 'Percent Executions' with 'Per User' ticked off

__setProperty() function or even outside JMeter via i. You can also use a JMeter Function or Variable in the “Thread Delay” input. Jmeter: Constant throughput Timer with Ultimate Thread Group. I'm thinking that in my overall Test Plan, I will add all the a). Remember 2 things: Throughput Timer isn't able to create threads, it can only slow them down so make sure that. 4 requests per minute, it can be done using i. 7. Now if you want to control the rate of transactions per second or the number of samples to execute you can use Constant Throughput Timer. Share. Lets consider below load scenario for example: Total no of users = 5. July 1, 2023 by PerfMatrix. Gaussian Random Timer A Gaussian Random Timer calculates the thread delay time. e. Jmeter: Constant throughput Timer with Ultimate Thread Group. This time you will be able to correlate increasing load with other metrics like response time, throughput, number of errors, etc. jsr223 request Constant Throughput Timer - 100 rpm. Share. Running Jmeter script by targeting 1000 requests per second (Business SLA) hence used 'Constant Throughput Timer' or 'Throughput shaping timer' as suggested in below queries. basically, drop the synchronising timer, use a constant throughput timer instead, configure wait times and then calculate the. Uniform Random Timer. Nested classes/interfaces inherited from interface org. " --- this is not entirely true. Open your JMeter script and right click on Thread Group. If you're using > 1 virtual user and uncertain regarding ramp-up settings consider using Throughput Shaping Timer which is more precise out of the box. Constant Timer at Thread Group level. "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. In particular the most commonly used elemends are: Synchronizing Timer – to pause threads unless certain number will be reached and fire them all at the same time. This includes any intervals between samples, as it is supposed to represent the load on the server. In JMeter, there are 9 different Timer types. 4. However from what I can see from your Summary Report the majority of samplers are executed at rate of 3. JMeter Throughput by Example. thread group (thread = 1000, ramp up = 100 sec, loop count = 1) loop controller( above 3 request with loop count = 12) constant throughput timer = 5. Step 2. jmx: JMeter project file. So overall 20 users - ramped up in 1 seconds. 1. Use CTT in Test Plan level,not in thread group level. Add a relevant JMeter Timer (i. Constant Throughput Timer – to specify exact load to generate, i. JMeter – Constant Throughput Timer. Different Timer Types. Precise Throughput Timer. If there are more threads than values, the values get re-used. The Constant Throughput Timer is again a more powerful Timer, not in the same way the previous. The constant timer is one of the most widely used timers in JMeter. 0” your throughput during the test will be 1 request per minute. The main factor is your application response time, if it will be 1 second - go for 400 threads for 1 request, if it is 2 seconds - you will need 800 threads for 1 request, etc. This timer generates Poisson arrivals with constant throughput. 下面举例来看看如何做到以固定吞吐量发送请求,创建一个JMeter脚本,加入了若干thread only表示对单个线程生效。. 8、吞吐量定时器(constant throughput timer)需要补充注意事项,有不理解的地方. e. Keep the think time to create a more realistic behaviour ( optional )It might be the case Constant Throughput Timer is not "precise" enough, given you need to limit JMeter's throughput to 15 requests/minute assuming 20 threads it's better to consider Throughput Shaping Timer which has lower granularity therefore it's being applied immediately and gives exact throughput figures comparing to the. If the machine stamps sixty widgets in one minute, it’s throughput is one widget per second. How to generate number of requests per second for one user. 0” your. 3. Plus “Constant Delay Offset”. It in a way reflects the capacity of the server. As you see, no other timers except Througput shaping timer. My website's expected performance is 200 concurrent users at 8 RPS. The difference between the uniform random timer and other two random timers (Gaussian and Poisson) are: 1. 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. I have a JMeter Test Plan where I am using different Timers like Throughput Timer, Constant Timer & Synchronizing Timer. 1 Answer. There are 2 important elements which help to emulate the goal-based scenario when the number of requests is known and the target to achieve. Constant Timer. JMeter™ User Save time for the Thread Groups creation. 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. With Constant Throughput Timer, it sends more than 'n' requests per second. ramp up to 6000 samples per min and so on up to. So it's your job to provide sufficient number of threads in the Thread Group. Test Plan 2. jmeter. This timer tries to maintain a constant throughput throughout the test and achieve the target. e 300s. 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). You can see that Start time difference between 1st request and 41st request is 1 minute. 66 to the "Target Throughput" input (100 requests per hour / 60 minutes in hour)Parallel Controller executes all its children at the same time by kicking off extra virtual threads, it allows JMeter to simulate network footprint for specific use cases like simulating AJAX requests. What is throughput time in JMeter? Throughput is calculated as requests/unit of time. How to create JMeter test with parallel execution in one thread group with specific throughput? 0. Second I would recommend checking whether your system under test has enough headroom in terms of resources (CPU, RAM, Network, Disk, etc. If you choose to add more than one timer to a Thread Group, JMeter takes the sum of the timers and pauses for that amount of time before executing the samplers to. See How to use JMeter's Constant Throughput Timer article for more details. Save my name, email, and website in this browser for the next. JSR223 Timer. The most intuitive thing I could think of was using Constant Throughput Timer to control the number of requests sent,. JMeter: Holding Session for a certain. So the formula is: |0. Built into JMeter, there are 9 different types of timers available: ‍. . $ {__Random (1000,5000,)} –> sẽ trả về giá trị. 10 000 requests in one hour is something like 166. Step 3. Throughput shaping timer or CTT to control the expected throughput. g. This will ensure that request is made minimum 100 per minute. Bạn sẽ nhập 1 giá trị ngẫu nhiên vào Constant Timer thay vì giá trị cụ thể. Para poder realizar esto utilizando solamente JMeter, se encontró que el único elemento que permite modificar el throughput en tiempo de ejecución es el Constant Throughput Timer. Throughput Shaping Timer is a plugin and you need to install the plugin. 866 + 172 + 5000 = 22:05:07. Changing this consistent worth during the test is additionally. 1. However it is precise enough only on "minute" level so you might need to play with ramp-up period. 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. 1. 3. Constant Timer with a Thread Delay of 5 milliseconds. if you set it to 1, the thread will only send one request per minute). รวมถึง. I ended up using a Test Action with 30s pause. Throughput Shaping Timer. mirek (Bug 64928): Component impacted: Constant Throughput Timer Case: value of target throughput set to: ${__P(tpm)} (or any other variable/property) tpm value is not a valid positive float. {"payload":{"allShortcutsEnabled":false,"fileTree":{"src/components/src/main/java/org/apache/jmeter/timers":{"items":[{"name":"gui","path":"src/components/src/main. You can try setting the number of threads to i. Throughput, essentially, is the. Just to recall in terms of Apache JMeter the meaning of Throughput is ‘requests per second’ or ‘samples per second’ send to the server by JMeter. Created attachment timer. 1. Actually I use a constant throughput timer to keep the frequency constant. JMeter Constant Throughput Timer Example. 4 requests per minute. Test Case 2: - 6 requests per minute - 1 request each 10 seconds. If above information is not enough try to elaborate your query and include i. Constant Timer: To delay every user request for the same amount of time use Constant Timer. Name: To provide the name of the timer; Comments: To provide arbitrary comments (if any); Number of Simulated Users to Group by: This attribute is used to define the number of threads to release at a time. Add Constant Throughput Timer to your Test plan and configure it to send 30000 requests per minute (500 requests per second). And if you changed load generator machine or server. QAInsights. As a result, it provides a different terminology to understand the application’s. e. JMeter has a group of elements, which are called “Timers”. The timer tries to produce a constant. 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. Constant Throughput Timer added with throughtput = 10 and Calculate Throughput based on = all active threads. e. You can specify the pause in ‘Thread Delay’ field. A user logs in, goes to the main page, searches for a product, sees the results and goes to the detail page of one option. e. The easiest way of controlling the number of requests per second (throughput) in JMeter test is using Constant Throughput Timer. 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. Nested classes/interfaces inherited from interface org. The timers work as expected, I would say you're getting more or less equal throughput due to your application being overloaded and responding too slow, i. See How to use JMeter's Throughput Constant Timer guide for more details. This will add Constant Timer at Thread Group level. 12. However it is precise enough only on "minute" level so you might need to play with ramp-up period. 0. It's easier to configure as it provides a graph demonstrating. What do you mean by "total transactions"? If you want to send 30 requests in 15 minutes more or less evenly distributed you need to use Constant Throughput Timer instead of the Synchronizing Timer and configure it to send 2 requests per minute. Figure 01: JMeter Timer Elements Scope of JMeter Timer: 1. The simplest way is to add a single 'Constant Timer' to your thread group at the same level as your HTTP requests. Below you will find a categorized list of the most common timer elements included with JMeter. Actually you can just provide enough users and focus on controlling how often they will be sending requests via Constant Throughput Timer or Throughput Shaping Timer. Right click on Thread Group > Add > Timer > Constant Throughput Timer. 0. Constant Throughput Timer is only capable of pausing JMeter threads in order to slow them down to reach the target throughput. Component Properties - Properties that contain information about the duration and. Of course, if the server is not able to handle such a load, the throughput will. e. I use JMeter for web testing. If you want to run parallel requests - just increase the number of threads in the Thread Group to reach the desired concurrency. 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). In case you have only 1 request as in your scenario then it will generate Throughput of 20 request/sec (sometimes 20. Its called JMeter Throughput Constant Timer. Second, it works precise. Second, it works precise enough on "minute" level. Like this: Throughput Controller config: Based on is Percent Execution and Throughput is 20. 2. This is used when we want each thread to wait for the same amount of time. And if you changed load generator machine or server. Follow asked Nov 1, 2022 at 13:41. If it is added at the Test Plan level then it acts as a global timer and the delay is added for all the samplers before the process. This can be done by using Apache JMeter™´s Constant Throughput Timer and the Beanshell server. The Apache JMeter site actually puts the workings of the ramp-up period best:. if the transaction controller has 3 child samplers and you want the whole transaction to be executed 100 times/minute - you need to set the target throughput to 300 requests/minute. This is known as Think Time and Jmeter provides different types of timers to help add the right amount of between samples: Constant Timer – will pause for the same amount of time. Constant Throughput Timer. See How to use JMeter's Throughput Constant Timer guide for more details. If you want to execute 300 000 queries in 24 hours you need to introduce a rate limiting on JMeter side to execute 208. Select "Test Plan" node. This blog post answers this questions and helps you build a JMeter test, step by step, to try it out. Set Target Throughput = 40. Uniform Random Timer. Constant Throughput Timer pauses active threads to reach throughput level you define. All controllers and samplers must be under a thread group. Because JMeter sometimes displays throughput in per minute and sometimes in per second, whereas the hits per second is always per second. Constant Throughput Timer. 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. 2. Constant Timer adds a delay after the request completes (not after start), which doesn't fit either. July 1, 2023 by PerfMatrix. 4. 10 000 requests in one hour is something like 166. e. JMeter Constant Throughput Timer is used as a goal-oriented element which helps to achieve the desired throughput (Total Number of Requests). 6. Another option is implementing pacing. Constant throughput timer (Timer) jmeter; Share. – EBDS. Constant Timer or Gaussian Random Timer or Uniform Random Timer or whatever. Constant Throughput Timer added with throughtput = 10 and Calculate Throughput based on = all active threads. Introduction. apache. Maybe I'm wrong here, but this should be samples per minute, so 200. Follow edited Mar 4, 2021 at 7:35. Constant Throughput Timer Value=120/sec is used. 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. The Uniform Random 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. Issue: If i run the test, I was expecting the min throughput of 15 requests/sec - upto 16 requests /sec. Testing without a JMeter timer can create irregular test results because the simulated requests will come in a different pattern than. This includes any intervals between. Below screenshot is list of all Timers provided by JMeter to control the load. I think it will be more accurate than looking at locust's current_rps tracker, especially at low load. Throughput is calculated as requests/unit of time. Ramp up 1 second for all. The Throughput Shaping Timer plugin adds the following features to JMeter: The Throughput Shaping Timer element - a timer that sets the desired RPS schedule via the JMeter GUI. If your goal is to execute X requests per second - go for one of the following test elements: Constant Throughput Timer; Precise Throughput Timer (available since JMeter 4. Constant Throughput Timer is excellent to regulate the number of hits without changing the. Constant Throughput Timer : The Constant Throughput Timer is like the Precise Throughput Timer, except that it has fewer settings. To add a timer element, we need to right-click on the Thread Group element and select Add, Timer, Constant Timer. A good position would be a direct child of the Thread Group. Before understanding the semantics of throughput, let’s look at the concept. This is what we need to control request frequency. JMeter: Holding Session for a certain period of time. By the way, there is an extended. Constant Throughput Timer. Now check the time difference between the 1st sample and 11th sample, it is 1 minute. Constant Throughput Timer pauses active threads to reach throughput level you define. 0. So you need to supply the sufficient amount of threads in the Thread Group. This plugin is specially designed to schedule RPS loads. I would say that these timers are mutually exclusive. Leave a Comment Cancel reply. However, in one case I need an additional constant timer because I need to wait a certain time between two requests. 6 requests per minute, in this case they will be evenly distributed. JMeter has a group of elements, which are called “Timers”. Uniform Random Timer. If 0 is given then JMeter will release the same number of users which is defined in the thread group. How to add a Timer-Right Click on Thread Group -> Hover over Add -> Hover Over Timer -> Click on the required Timer. Do not select "This thread only" value for Timer added at root, as it will change the result. For further detail check JMeter blog about Constant Throughput Timer. Command-line: you can pass this property value via -J command-line argument like: in JMeter define i. The Constant Timer can be used to pause each thread for the same “think time” between requests. 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. It will introduce the random relays between requests in such a way that required throu. 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. Two above would cover the majority of use cases, however if you want more control on your load pattern look into Throughput Shaping Timer (available through JMeter plugin) Share. Alternative options are:JMeter also provides a useful timer component to configure or set a constant throughput value to test the application load. Testing without a JMeter timer can create irregular test results because the simulated requests will come in a different pattern than. So the options are in: Increase the number of threads in the Thread Group to i. If we were to add a Constant Timer to the test and set the delay to be 2000 milliseconds. Given here are some JMeter listeners that you can use for this purpose: Summary Report Aggregate Report Aggregate Graph Graph Results. In some cases, the Timer is used to implement the Pacing. A user logs in, goes to the main page, searches for a product, sees the results and goes to the detail page of one option. We highly recommend using the Uniform Random Timer. First of all try increasing the number of threads. When the throughput is saved to a CSV file, it is expressed in requests/second, i. 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. Share. I have used "Constant Through Timer" to control the flow of transactions. jmeter. java:131. Of course, if the server is not able to handle such a load,. Thread group elements are the beginning points of any test plan. Start RPS End RPS Duration 1 10 3600 2 4 3600 2 8 3600 Total Number of Users- 300 ; Ramp Up 600 Seconds ; Duration of Test 10800 Seconds. We will conduct a sample load test with 100 concurrent users (threads) and evaluate the throughput value. You can have one HTTP header manager at Thread level or none (as per request type). A constant throughput timer in JMeter is used to achieve the actual output by computing the total number of requests. Use Precise Throughput Timer. There are 3 options to configure weighted load and highlight options provided by JMeter. org. jmeter. For example: 1000 target threads with 1000 seconds ramp-up: JMeter will add one user each second18. In the JMeter script, Constant Timer is used to add a constant delay before processing a sampler. JMeter provides lots of ways to record the value of throughput. This implies per minute 10 requests will be executed. Here is my script detail:->Simple Login request. See Also: Serialized Form. Here are the workarounds: Calculate the number of threads you need to achieve your target. The number of requests per second has to be controlled by using constant throughput timer (or the one from jmeter-plugins). Improve this question. The timer will be applied before the sampler is executed. Try using Constant Throughput Timer. JMeter's Constant Throughput Timer can only capable of pausing the threads to limit the number of transactions per minute to the given value, if the current amount is not enough - it won't kick off extra threads. "Throughput depends on response time. Each timer has a different application, which we have outlined here: Constant Timer: The most basic timer, this will simply add a delay to the threads before they are initiated. Constant Throughput Timer can only pause the threads to reach specified "Target Throughput" value so make sure you provide enough virtual users (threads) to. jmeter; performance-testing; Share. JSR223 Timer. ThroughputController. Sorted by: 2. So you need to supply the sufficient amount. User variables can be referenced in any field of any JMeter Component. Synchronizing Timer: mình đã nói ở bài viết Nhiều user thực hiện một hành động đồng thời trên jmeter; Constant Throughput Timer: có vẻ giống với Synchronizing Timer, mình chưa dùng bao giờ. A Constant Throughput Timer will look like the picture above. 下面举例来看看如何做到以固定 吞吐量 发送请求,创建一个 JMeter 脚本,加入了若干. I have a cloudsearch endpoint on AWS. View Results Tree 5. 2. 0 elements: Constant Timer. Improve this question. This is "closed workload" approach, and it has major drawbacks (see here why). e. That means 40 samples has been executed in 1 minute. 在JMeter中定时器用来设置延时和同步,以调节请求的发送速率,那么如何产生固定吞吐量的压力哪?可以使用常数吞吐量定时器(Constant Throughput Timer)来实现。 下面举例来看看如何做到以固定吞吐量发送请求,创建…Tool ที่เราใช้ในการทำ performance test ก็คือ JMeter ซึ่งเป็น tool opensource ที่เขียนด้วย Java. . The JMeter Timers available are as follows: BeanShell Timer. 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 level so expect your number of requests applied from 2nd minute and onwards. Constant Throughput Timer is only capable of pausing JMeter threads in order to slow them down to reach the target throughput. Thanks @Dmitri. 5. Constant throughput timer not working properly. control. This plugin also works similarly to Constant Throughput Timer, which pauses the threads based on the target Throughput. 3. We will also briefly look into the usage of JMeter’s Throughput Constant Timer. 4 Constant Throughput Timer This timer introduces variable pauses, calculated to keep the total throughput (in terms of samples per minute) as close as possible to a give figure. คอร์สนี้จะพาทุกคนไปรู้จักกับ JMETER (Tool ที่ดีที่สุดสำหรับการทำ Performance Testing) ตั้งแต่เริ่มลงโปรแกรม ไปจนถึงการใช้งานชั้นสูง. Now if you want to control the rate of transactions per second or the number of samples to execute you can use Constant Throughput Timer. The different types of timers available in JMeter are – Constant Timer, Gaussian Random Timer, Uniform Random Timer, Constant Throughput Timer, Synchronizing Timer, Beanshell timer, BSF Timer, etc. 4. I want to use the Throughput Shaping Timer using JMeter API in my java code. The test run may be shorter as if. Trong bài này , ta chỉ tập trung vào Constant Timer thôi vì theo mình nó là đơn giản nhất. You are right that Concurrency Thread Group is missing features of Stepping. 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. Constant Delay Offset (in milliseconds): The number shows a constant delay which will be added in random number generated by Gaussian Function in the range of given deviation value. The application. Let’s see how we can use constant throughput in JMeter as follows: With the help of constant throughput, we can keep constant time. JRS223 Timer. Beanshell Server, check out How to Adjust the. Constant Throughput Timer. The following article provides an outline for JMeter Throughput. I am developing a JMeter Script according to the below requirement. 0 (exclusive) Multiplied by “Random Delay Maximum”. Example: If Constant Delay Offset is given 1000 and deviation is given 200 then Gaussian Random Timer will generate the random number in the range. 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. 目标吞吐量(target throughput)单位是每分钟发送的请求数. Figure shows, Constant Throughput Timer for 60 requests per. To achieve this I have configured a Constant Throughput Timer to 12000 requests per minute (active for. Solution 1: You can use Stepping Thread Group (allows to set thread number increase stages over set periods of time) with Constant Throughput Timer in it. Precise Throughput Timer is more "precise" but a little bit harder to use as you need to provide controlled throughput. If you want to limit JMeter's throughput to 1100 requests per minute consider using Constant. The following BeanShell commands could be used to change the test:If you need provide constant load at 300 requests per second rate - you'll need Constant Throughput Timer. However, I want to make requests as a single user. Constant Timer. Comment. Case 2: With sleep time (Using Constant Timer) In this case, throughput will be controlled by introducing sleep time in between threads. 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. Nested Class Summary. either execute this 100 times OR. It seems that the Constant. There is a Constant Throughput timer, which as far as I understand, is to control throughput for individual requests. It will also give you the saturation point and the bottleneck in case. For different time of the day I'd use a different throughput value. Constant Throughput Timer can only pause the threads in order to limit JMeter to the defined number of requests per minute. throughput property as: ${__P(throughput,)} "tell". See Also: Serialized Form. correct use of throughput controller (JMeter) Main thread is set to 50 concurrent users (looping - as testduration will be scheduled). 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. 4. Ori Marko. 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Built-in Constant Throughput Timer; Throughput Shaping Timer from jmeter-plugins. Response Assertion. La principal diferencia entre estos dos temporizadores esta en que el CTT inserta un pausa constante mientras que el CTT inserta un pausa aleatoria. Components presented here provide the functionality to introduce User Think Time in various forms among samplers. 1 Answer. 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. You can add this element to your test plan by following “ Thread Group -> (right click) -> Add -> Timer -> Constant Throughput Timer ” path. I have already referenced the class file called VariableThroughputTimer. Throughput Shaping Timer per se can only pause JMeter threads to limit execution rate to the given number of requests per second. 2. A JMeter Timer is a built-in plugin tool for JMeter that can help with spacing out your sample requests. Using JMeter, the constant throughput timer is particularly useful for this. In my test plan I'm using a ThreadGroup with 5 threads, a HTTPRequest Sampler and a Constant Throughput timer with target set as - ${__P(throughput, 100)} for all active threads in current threadgroup. Target throughput (in samples per minute) value lets you manage the frequency for your requests. 3. this is how you can control for how long JMeter threads are allowed to run. This timer tries to maintain a constant throughput throughout the test and achieve the target. iii. However, a couple of advantages are the request bursts are more consistent in nature, and the samples lie very close to the median value, as can. If it is added at the Test Plan level then it acts as a global timer and the delay is added for all the samplers before the process. The problem: lets say the first request needs a throughput of 60RPM and the second 30 RPM. It is often the first step to develop test plans for applications. Open your JMeter script and right click on Thread Group.