Constant Throughput Timer. We will also briefly look into the usage of JMeter’s Throughput Constant Timer. Timer’s Present in JMeter. Constant Throughput Timer is used for pausing the threads to slow down overall execution speed to reach the target throughput. The JMeter Timers available are as follows: BeanShell Timer. 3. Constant Throughput Timer. Right click Thread Group > Add > Timer > Constant Timer. Concurrency can be controlled via Constant Throughput Timer or Throughput Shaping Timer and monitored via Server Hits Per. Hot Network Questions Is there any way retirement systems can cope with declining population? Which verb fits in 庭に木をもう一本_？. 1) with Constant Throughput Timer value as 1200/min with "All active threads" and Timer added at the root of script. Let’s think about an end-to-end scenario for an e-commerce website. Lets consider below load scenario for example: Total no of users = 5. We would like to show you a description here but the site won’t allow us. Constant Throughput Timer can. One widget at a time is passed through a machine that stamps it with a label. JMeter: Not enought delay between HTTP samplers. "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. 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. However from what I can see from your Summary Report the majority of samplers are executed at rate of 3. 1. 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. 4. To apply a timer to a single sampler, add the timer as a child element of the sampler. So you creating the excessive number of threads and then the timer will. Constant Throughput Timer. Some commonly used JMeter Timers are: Constant Timer; Uniform Random Timer; Precise Throughput Timer; Constant Throughput Timer; Gaussian Random Timer; JSR223 Timer; Poisson Random. Allocate the target throughput to required number (30 in this case). 2. The main goal of. 2. The Constant Throughput Timer. This capability is really helpful for debugging tests in real time. I am trying to configure a test for signup-login with invalid credentials imitating bruttforce attack. JMeter offers several options to control the load. If 0 is given then JMeter will release the same number of users which is defined in the thread group. I have used "jp@gc - Throughput Shaping Timer" But unable to achieve expected TPS. In case of throughput; the higher the better. So basically throughput is the number of requests which JMeter was able to within test duration time frame. In planning our load tests, our goal is often to measure whether or not our application (not just the. Placing the HTTP sampler under different threads is to send the API requests in parallel, because JMeter by default will run threads simultaneously when “Run Thread Groups consecutively” under the test plan is unchecked. Maybe I'm wrong here, but this should be samples per minute, so 200. Example configuration: Add Constant Throughput Timer as a child of the Login sampler. Follow answered Oct 22, 2015 at 16:42. Throughput Shaping Timer. Add Constant Throughput Timer to your Test plan and configure it to send 30000 requests per minute (500 requests per second) Make sure that all the Samplers are in the Constant Throughput Timer's scope and you have. 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. JMeter timers mainly include Constant Timer, Uniform Random Timer, Precise Throughput Timer, Constant Throughput Timer, Gaussian Random Timer, JSR223 Timer, Poisson Random Timer, Synchronizing. When you need to add a delay based on an edge condition which is not covered by other timers i. Do not select "This thread only" value for Timer added at root, as it will change the result. When you need to add a delay based on an edge condition which is not covered by other timers i. JMeter acts as follows: It starts all threads within specified ramp-up period. Uniform Random Timer 0. log can be very useful for troubleshooting JMeter-specific issues. 1. Configure the thread group with 10 threads and run for duration of 5 minutes (300 seconds)We will also briefly look into the usage of JMeter’s Throughput Constant Timer. The formula is: Throughput = (number of requests) / (total time). Sorted by: 2. 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. Improve this question. Example 1: you have submitted a request and it returns "pending" status. 4. As a practical example, assume you have a long-running JMeter test running in CLI mode, and you want to vary the throughput at various times during the test. . Total Http Requests - 24, Total Http Request/min - 12, Test Duration 2min, Waiting time between requests per minute : 60min/12req = 5sec . Given here are some JMeter listeners that you can use for this purpose: Summary Report Aggregate Report Aggregate Graph Graph Results. 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. 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. Constant Throughput Timer. And then execute the test we see that the execution of each sampler is delayed by 2000 milliseconds. The constant timer is the basic timer among all the given ones. Apache JMeter is an open source Java based tool that enables you to perform functional, load, performance and regression tests on an application. JMeter has a group of elements, which are called “Timers”. testelement. 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. 1 Thread Group. I also changed the heap variable to this and i have a virtual machine with 32. The performance bottleneck of target app. It's easier to configure as it provides a graph demonstrating. Now let us see in brief about some commonly used timers of Jmeter. ${__P(throughput)}. 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. Constant throughput timer not working properly. 4. can only pause the threads to limit the throughput (requests per minute) to the desired value. 5. The timer tries to produce a constant throughput till the end of the test to achieve the target. To see the full JMeter Timer List, click on the Thread Group -> Add -> Timer. But if I place my requests in separate Thread Groups - Throughput Controller doesn't work. First of all, Constant Throughput Timer can only pause JMeter threads in order to limit JMeter's throughput to the desired value. Hướng dẫn sử dụng Timer trong JMeter – Add Precise Throughput Timer 2. JMeter Constant Timer, Constant Throughput Timer. Constant Throughput Timer. 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. I am developing a JMeter Script according to the below requirement. Click on Constant Throughput Timer; This timer has the following fields,. The JMeter docs in 3. Gaussian Random Timer. Ramp-up is the time for JMeter to kick off the virtual users from point 1. Go back to the "Test Plan" node. It means that you have to implement the thread delay logic by yourself using one of the supported scripting languages. 4. Tổng kếtConstant Throughput Timer is the easiest of built-in test elements, 2 requests per second is 120 requests per minute. Below timers are used to implement pacing in Jmeter to achieve the desired load/Business transactions. 0” your throughput during the test will be 1 request per minute. 2. The total number of requests JMeter will be able to make will mostly depend on application response time. The easiest way of controlling the number of requests per second (throughput) in JMeter test is using Constant Throughput Timer. 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. Then extract the file and run JMeter: $ tar -xf apache-jmeter-5. Request Oriented Goal: In such types of goals, we need to achieve the defined number of requests in an hour. BSF Timer. Both the scenarios you have mentioned may require thinking for a moment that there's something fishy if they both use a different unit of time. 线程组线程数设为10. Timers provided in JMeter Constant Timer. This is "closed workload" approach, and it has major drawbacks (see here why). Improve this question. （1）Number of Simulated Users to Group by：模拟用户的数量，即指定同时释放的线程数数量，若设置为0，等于设置. Of course, if the server is not able to handle such a load,. JMeter - Timer - "Constant Throughput Timer" C onstant Throughput Timer is used as a goal-oriented element which helps to achieve the desired throughput (Total Number of Requests). jmeter里面不可以直接控制吞吐量，但是我们可以通过操作并发数变相改变吞吐量。. The application. g. If you want JMeter to run 5 concurrent samplers each minute you need to go for different setup, to wit: Your Sampler. Plus “Constant Delay Offset”. 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. Uniform Random Timer The uniform random timer causes each thread to wait for a random time. If the machine stamps sixty widgets in one minute, it’s throughput is one widget per second. 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. I have used "Constant Through Timer" to control the flow of transactions. One of the most commonly used timers in JMeter, the Constant Throughput Timer enables you to decide how many samples should be executed per minute. Constant Throughput Timer can only pause the threads to the desired throughput so if you want to achieve 10 requests per second with 20 users your application must be at most 500ms, if it will be higher - the number of requests per unit of time will be proportionally less. This will add Constant Timer at Thread Group level. Mình tin là bạn cũng muốn có case này trong kiểm thử của mình. 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. Throughput depends on response time for fixed set of users (threads). View Results Tree 5. Open your JMeter script and right click on Thread Group. Save my name, email, and website in this browser for the next. How to generate number of requests per second for one user. Constant throughput timer is used to control the execution of requests according to the specified throughput. Por ejemplo, cuando necesitamos mantener el servidor bajo cierta presión durante mucho tiempo, podemos controlar el rendimiento a través de este temporizador. Built-in Constant Throughput Timer; Throughput Shaping Timer from jmeter-plugins. It will also give you the saturation point and the bottleneck in case. apache. This is the function of Constant Throughput Timer. jmeter; performance-testing; Share. Remember - if the application itself is not supporting the desired throughput, jmeter can not help here. By default each JMeter thread executes samplers as fast as it can. Throughput Shaping Timer. Constant Throughput Timer added with throughtput = 10 and Calculate Throughput based on = all active threads. And if you changed load generator machine or server. In case you have only 1 request as in your scenario then it will generate Throughput of 20 request/sec (sometimes 20. 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. 4 requests per minute. If the request took 1000 mSec, it will apply 4500-1000 = 3500 mSec as the pacing. 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. 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. All of the "Timer" group of elements affect the script. Test Case 2: - 6 requests per minute - 1 request each 10 seconds. 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. jsr223 request Constant Throughput Timer - 100 rpm. jmeter_loc – the full path to the root jmeter folder. Constant Throughput Timer; Don't use GUI to run JMeter tests as it might have very negative impact on test results, JMeter GUI is only for tests development and. The constant timer has the following components. Share. Throughput controllers for all API calls is set to 100% 'Percent Executions' with 'Per User' ticked off. 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. Alternative options are: JMeter also provides a useful timer component to configure or set a constant throughput value to test the application load. 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. Test Plan 2. The Constant Timer is self-explanatory: it delays each sampler by a constant Thread Delay value. You can specify the pause in ‘Thread Delay’ field. 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. Click Add –> Timer –> Constant Timer. 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. And if you changed load generator machine or server. The total number of threads in the Ultimate Thread Group will be 250. 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. Go back to the "Test Plan" node. So overall 20 users - ramped up in 1 seconds. Constant Throughput Timer is only capable of pausing JMeter threads in order to slow them down to reach the target throughput. 1 % of the load and 1 trying to generate. Constant Throughput Timer; JSR223 Timer #20. Throughput Shaping Timer Properties. I can think of 2 reasons: Given 8 Thread Groups with 5 virtual users you're accessing your application with 40 concurrent users and it might be the case the application gets overloaded hence response time increases as concurrency increases. Different Thread Groups having different number of threads; Throughput Controller; Switch Controller or Weighted Switch Controller plugins. 0. Throughput Shaping Timer. Tool ที่เราใช้ในการทำ performance test ก็คือ JMeter ซึ่งเป็น tool opensource ที่เขียนด้วย Java สำหรับการทำ load test การจำลอง request จากหลาย user ที่เข้ามาพร้อมกันทำ. A good position would be a direct child of the Thread Group. For example, if I set Constant Throughput timer throughput to be 60 per minute,. Add two entries to the "User Defined Variables. Plus “Constant Delay Offset”. 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. I have tried with below jmeter tools. Constant Throughput Timer: This timer define the number of sampled need to be executed per. I want to change the expected request. Share. You can have one HTTP header manager at Thread level or none (as per request type). Subscribe. Jmeter: Constant throughput Timer with Ultimate Thread Group. 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. If you want to limit your test. If you change the Constant Timer is zero, you will see the result is changed. 0. Synchronizing Timer 同步定时器. 1. Apache JMeter is an open source Java based tool that enables you to perform functional, load, performance and regression tests on an application. You cannot, JMeter waits for previous Sampler response prior to executing next Sampler so if you put all the Samplers under one Thread Group all the requests will be executed at the speed of the slowest request. Test Case 1: - 3 requests per minute - 1 request each 20 seconds. Poisson Random Timer. 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。. __setProperty() function or even outside JMeter via i. The threads in my thread group. So the Sample 3 should start at the time is 22:05:07. Throughput Controller - You can set the Max number of executions, OR the Percentage of executions of the sample (i. In. basically, drop the synchronising timer, use a constant throughput timer instead, configure wait times and then calculate the. Precise Throughput Timer is more "precise" but a little bit harder to use as you need to provide controlled throughput. 2. Gaussian Random Timer. 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:. So if the server could not manage the load, it results in minimum throughput. Constant Throughput Timer with a target throughput of 12000. 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. Issue: If i run the test, I was expecting the min throughput of 15 requests/sec - upto 16 requests /sec. I have a requirement that in ultimate thread group , constant throughput value needs to be changed for every 5 mins using beanshell pre-processor. So the options are in: Increase the number of threads in the Thread Group to i. Share. JMeter: Holding Session for a certain. If you server is able to respond in constant response time then throughput will remain the same for a given number of clients (threads). Trong bài này , ta chỉ tập trung vào Constant Timer thôi vì theo mình nó là đơn giản nhất. So you need to supply the sufficient amount. To achieve this I have configured a Constant Throughput Timer to 12000 requests per minute (active for. Component Properties - Properties that contain information about the duration and current state of the test. As per documentation>. jmeter. I have tried JMeter with a constant throughput timer with throughput = 1500000 per second and running 1000 threads. apache. The time unit is chosen so that the displayed rate is at least 1. This class implements a constant throughput timer. La principal diferencia entre estos dos temporizadores esta en que el CTT inserta un pausa constante mientras que el CTT. This can be done by using Apache JMeter™´s Constant Throughput Timer and the Beanshell server. This plugin also works similarly to Constant Throughput Timer, which pauses the threads based on the target Throughput. 0. The first request wil receive the correct amount of throuhput the first time, and so will the 2nd request. Components presented here provide the functionality to introduce User Think Time in various forms among samplers. BSF Timer. Do not select "This thread only" value for Timer added at root, as it will change the result. throughput property as: ${__P(throughput,)} "tell". Improve this question. So you need to supply the sufficient amount of threads in the Thread Group. Constant Throughput Timer is only capable of pausing JMeter threads in order to slow them down to reach the target throughput. A s the name suggested, Uniform Random Timer is used to generate the random delay in a uniform manner. This ultimate thread group will give you more control over Threads. July 1, 2023 by PerfMatrix. 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. Simple Controller i. A constant throughput timer in JMeter is used to achieve the actual output by computing the total number of requests. Let’s think about an end-to-end scenario for an e-commerce website. added a constant throughput timer to the ultimate thread group and gave the value as 480 requests per minute. Constant Throughput Timer : The Constant Throughput Timer is like the Precise Throughput Timer, except that it has fewer settings. 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. How to Use “ Constant Throughput Timer ” in JMeter. Constant Throughput Timer is the easiest of built-in test elements, 2 requests per second is 120 requests per minute. All you need to do is to slow it down a little bit, one of the options is adding a Constant Throughput Timer. 作用：用来设置集合点，其作用是：阻塞线程，直到指定的线程数量到达后，再一起释放，可以瞬间产生很大的压力. Different Timer Types. For the given scenario in sample scenarios image with duration 1hr , i tried to set the work load model as given below with the request hits 40000 and TPM 667:. org. I ended up using constant_throughput to control the number of requests per second. The constant timer pauses the test execution for a constant period. A Constant Throughput Timer will look like the picture above. JMeter also provides a timer component, ‘Constant Throughput Timer’, which you can use to set the value of Transactions per. This would allow you to adjust it via Command Line in real time, as the test script is being executed. First of all ensure that you're following JMeter Best Practices as it might be the case JMeter configuration is not suitable for kicking off that many threads. 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,. Despite word "constant" in its name, you can use i. Throughput, essentially, is the. TestElement. The value can be changed in various ways: You could set the throughput using a property or variable. Because 100 transactions per hour means one transaction each 36 seconds for 1 user and if you have 30 users the number will be proportionally less. If you want to send specific amount of requests during this hour consider using Constant Throughput Timer, but be aware of the following:. 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 following article provides an outline for JMeter Throughput. The time is calculated from the start of the first sample to the end of the last sample. e. If your scenario is to execute 100 requests evenly distributed across one minute you should rather go. When the throughput is saved to a CSV file, it is expressed in requests/second, i. 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. 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. JMeter Timers obey JMeter Scoping Rules so if you put the Constant Throughput Timer under a Thread Group - it will be applied only to this thread group. If you need to use the same common steps in several Thread Groups. Built into JMeter, there are 9 different types of timers available: . Created attachment timer. You can add this element to your test plan by following “ Thread Group -> (right click) -> Add -> Timer -> Constant Throughput Timer ” path. JMeter Constant Throughput Timer. Ori Marko. Other (and the main factor) is your application response time. Precise Throughput Timer. As the name implies, the thread group element controls the number of. Constant Timer: This is one of the most popularly used timer in JMeter. Target throughput (in samples per minute) value lets you manage the frequency for your requests. The constant timer is the basic timer among all the given ones. " --- this is not entirely true. はじめに. ), you can do this using i. 3. I would suggest going for Constant Throughput Timer. And I set Loop Count: forever. apache. I have to test if it can scale upto 25000 requests per second without failing. I have used the constant throughput timer before, also as child of certain requests. If you want to slow down JMeter to the desired number of requests per minute it can be done using Timers. If we were to add a Constant Timer to the test and set the delay to be 2000 milliseconds. Add Flow Control Action sampler after the last requestJMeter provides HTTP header manager element to attach that additional information along with the request. 3. Mouse hovers "Add". Second, it works precise enough on "minute" level. 3. JMeter Properties are global, can be accessed from different thread groups and persist all the time while JMeter is running. Nested classes/interfaces inherited from interface org. So first of all try increasing the number of threads; Make sure to follow JMeter Best. 1) with Constant Throughput Timer value as 1200/min with "All active threads" and Timer added at the root of script. QAInsights. If you need to test your system at 3500 requests per second you need to use slightly different approach, to wit add Constant Throughput Timer to your Test Plan and configure it to limit JMeter requests rate. We know that JMeter is an open-source, free tool used to conduct load and performance testing on static and dynamic web applications. Thread group elements are the beginning points of any test plan. If it is added under a sampler then the parent sampler will wait for the defined time. Concurrency depends on your test plan and application response time. Given you have Loop Count set to 1 JMeter will shut down. Constant Throughput Timer can only pause the requests to limit JMeter samplers execution rate to desired value, it won't kick off any extra threads if the current throughput is lower than expected. A Constant Throughput Timer paces the samplers under its influence so that the total number of samples per unit of. As you see, no other timers except Througput shaping timer. 1 Answer. If your script keeps hitting timeouts and includes these elements, remove or disable them unless they are important for your functional test scenario. 0. Add 1. Moreover, it's more or less precise only on "minute" level, if your test lasts less - you may not see the impact. The difference between the uniform random timer and other two random timers (Gaussian and Poisson) are: 1. JMeter Constant Throughput Timer is used as a goal-oriented element which helps to achieve the desired throughput (Total Number of Requests). B. control. The easiest way of controlling the number of requests per second (throughput) in JMeter test is using Constant Throughput Timer. JMeter Constant Throughput Timer. In my GET Thread Group I have added a bean shell processor- to convert the access token into a JMeter Property via __setProperty() function. You can add this element to your test plan by following “Thread Group -> (right click) -> Add -> Timer -> Constant Throughput Timer” path. 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. Here is my script detail:->Simple Login request. For instance 200k requests per hour is more or less 55 requests per second, if your application response time is 1 second - you will need 55. July 1, 2023 by PerfMatrix. Ultimate Thread. 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. And one of them has an obvious title – “Constant Throughput”. Based on RPS you want you can either set the value low for less number of requests and more for more RPS. I have a JMeter Test Plan where I am using different Timers like Throughput Timer, Constant Timer & Synchronizing Timer. In Validate Thread group I have accessed property by function ${__P(some-property-name,)}, included a constant throughput timer with values of 73/min and have also set a throughput controller with. JMeter User Defined Variable for enabling Test Duration. 目标吞吐量（target throughput)单位是每分钟发送的请求数. Constant Throughput Timer treats samplers individually therefore you need to multiply the throughput for the transaction by the number of its children samplers, i. I have single thread group with 40 users. Constant Throughput Timer. It is not necessary to have a separate HTTP header manager with each request unless request needs a unique header. You can also use a JMeter Function or Variable in the “Thread Delay” input. e. In the JMeter script, Constant Timer is used to add a constant delay before processing a sampler. 0. 0. Nested classes/interfaces inherited from interface org. e. Constant Throughput Timer is only capable of pausing JMeter threads in order to slow them down to reach the target throughput. Test Plan. Constant Throughput Timer is only capable of pausing JMeter threads in order to limit the number of requests per second to the given value. This includes any intervals between. Select it and you will see 3 fields as below. Throughput Shaping Timer is a plugin and you need to install the plugin. JMeter Constant Throughput Timer Example. However, I want to make requests as a single user. Constant Throughput Timer is available out of the box with JMeter. Throughput Controller. How to add "HTTP Cache Manager" element? You can follow the below steps: 1. By the way, there is an extended. Uniform Random Timer. Uniform Random Timer, Constant Throughput Timer, Synchronizing Timer, Beanshell timer,. For Constant Delay Offset of 3000 ms and Deviation time of 300 ms, each thread of JMeter would execute after {3000+(0-300 ms (could be any value between 0-300 ms)}. If our server is not able.