The constant timer is one of the most widely used timers in JMeter. 6 transactions per minute. Simply set the wait_time = constant_throughput (0. If you server is able to respond in constant response time then throughput will remain the same for a given number of clients (threads). See Also: Serialized Form. Throughput increased by factor of 2. It is not necessary to have a separate HTTP header manager with each request unless request needs a unique header. How to create JMeter test with parallel execution in one thread group with specific throughput? 0. S3E3 Learn JMeter Series - Constant Throughput Timer. This class implements a constant throughput 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. Skip to content Toggle navigation. This can be done by using Apache JMeter™´s Constant Throughput Timer and the Beanshell server. Constant Throughput Timer added with throughtput = 10 and Calculate Throughput based on = all active threads. 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). All you need to do is to slow it down a little bit, one of the options is adding a Constant Throughput Timer. はじめに. Target throughput (in samples per minute) value lets you manage the frequency for your requests. 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. If it is added under a sampler then the parent sampler will wait for the defined time. 10 000 requests in one hour is something like 166. The Throughput Shaping Timer element is a timer that sets the desired RPS schedule via the JMeter GUI. Download. Throughput Timer allows you to set number of samples that thread can send per minute (e. Constant Throughput Timer Value=120/sec is used. according to your application design you can retry this. So you need to supply the sufficient amount. Use Cases. I have already referenced the class file called VariableThroughputTimer. 0. 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. Based on RPS you want you can either set the value low for less number of requests and more for more RPS. Right click on Thread Group > Add > Timer > Constant Throughput Timer. Select it and you will see 3 fields as below. Constant Throughput Timer. And one of them has an obvious title – “Constant Throughput”. Thread Group 3. Share. When you need to add a delay based on an edge condition which is not covered by other timers i. 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. Share. For different time of the day I'd use a different throughput value. 可以使用常数 吞吐量定时器 ( Constant Throughput Timer )来实现。. Constant Throughput Timer has 2 main limitations: It is accurate enough on minute level so you need to ensure that your test is running long enough (minute or more). Actually I use a constant throughput timer to keep the frequency constant. In planning our load tests, our goal is often to measure whether or not our application (not just the. QAInsights. If 0 is given then JMeter will release the same number of users which is defined in the thread group. 7. Throughput shaping timer or CTT to control the expected throughput. Constant Throughput Timer cannot force threads to execute faster, it can only pause threads to limit JMeter's throughput to the defined value. In actual execution, in 1 hour. 1) with Constant Throughput Timer value as 1200/min with "All active threads" and Timer added at the root of script. How to add "HTTP Cache Manager" element? You can follow the below steps: 1. basically, drop the synchronising timer, use a constant throughput timer instead, configure wait times and then calculate the. This is what we need to control request frequency. Each JMeter thread executes samplers as fast as it can, however next iteration won't start until previous is finished so given you use 1 thread - the throughput won't be higher than application. Test Case 1: - 3 requests per minute - 1 request each 20 seconds. We will also briefly look into the usage of JMeter’s Throughput Constant Timer. Though the name implies it is constant, various factors affect the behavior, such as server capacity, other timers or time-consuming elements in the test. 3. Throughput Shaping Timer. e. By the way, there is an extended version of the CTT. Below timers are used to implement pacing in Jmeter to achieve the desired load/Business transactions. Now, add the Constant Throughput Timer. 3. 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. Constant Throughput Timer. 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. JMeter Property via __P() function as "Target Throughput" value. 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_？. In JMeter, the ‘Timer’ element simulates the real user behaviour of taking a pause on a webpage. You may need to try it out in a few runs to find the optimum value of sleep time to get the desired throughput. คอร์สนี้จะพาทุกคนไปรู้จักกับ JMETER (Tool ที่ดีที่สุดสำหรับการทำ Performance Testing) ตั้งแต่เริ่มลงโปรแกรม ไปจนถึงการใช้งานชั้นสูง. Constant Throughput Timer will be enough for your scenario. If you introduce artificial delay of 3 seconds - it will make the overall throughput lower. 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. 6. 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. 4. 039 ( As shown in the above figure) The delay of each sample is 5000 ms. 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. This ultimate thread group will give you more control over Threads. It seems that all the configurations were correct, but the actual number of requests in the constant throughput timer was too low. Constant Throughput Timer treats samplers individually therefore you need to multiply the throughput for the transaction by the number of its children samplers, i. You can add this element to your test plan by following “ Thread Group -> (right click) -> Add -> Timer -> Constant Throughput Timer ” path. apache. Throughput Controller. July 1, 2023 by PerfMatrix. if you set it to 1, the thread will only send one request per minute). 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. Follow answered Oct 22, 2015 at 16:42. If the machine stamps sixty widgets in one minute, it’s throughput is one widget per second. JMeter now supports. Share. 1 Answer. Sorted by: 2. 1. However I fail to see how Constant Throughput Timer is connected with the timeouts because it slows the number of. JMeter Constant Throughput Timer Example. Precise Throughput Timer. Looking into the Average Response Time which can be as high as > 1. e. 2. 0. 4 requests per minute. In JMeter, there are 9 different Timer types. On top of that, it tries to maintain the exact amount of arrivals for a given timeframe ( throughputPeriod ). Based on RPS you want you can either set the value low for less number of requests and more for more RPS. The purpose of the ‘Timer’ element is to pause a JMeter Thread for a certain amount of time. thread numbers, target throughput and what kind of information needs. I'm currently using Apache JMeter to run load tests on the REST interfaces of my backend application. Use CTT in Test Plan level,not in thread group level. 0. 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. 0. Constant Throughput Timer can only pause the threads to reach specified "Target Throughput" value so make sure you provide enough virtual users (threads) to. And then execute the test we see that the execution of each sampler is delayed by 2000 milliseconds. 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. For example, a Bean shell timer is usually used to give delay time or think timer in between sampler requests. If it is added under a sampler then the parent sampler will wait for the defined time. Here, we’ve added a Constant Timer with a Thread Delay of three seconds to our thread group. First of all, Constant Throughput Timer can only pause JMeter threads in order to limit JMeter's throughput to the desired value. I have single thread group with 40 users. 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 depends on response time. 6. Test Plan. Constant Throughput Timer: Target - 60,000/min (60 secs) - all active threads, Threads (Users) - 200 with Ramp up - 1 sec, Duration: 1 hour. It is important to get this peak throughput level correct because otherwise you either end up with a load that is too high (you waste time solving problems that are not problems) or too low (you don't find problems that are real problems) but if you already have. The Uniform Random Timer pauses the thread by a factor of: The next pseudorandom uniformly-distributed value in range between 0. So the real throughput depends on 2. JMeter Constant Throughput Timer is used as a goal-oriented element which helps to achieve the desired throughput. The tail of this log (most recent 200 rows) can be viewed live while the test is running. e. 0. Target throughput (in samples per. Throughput is calculated as requests/unit of time. Mình tin là bạn cũng muốn có case này trong kiểm thử của mình. 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. Constant Throughput Timer treats samplers individually therefore you need to multiply the throughput for the transaction by the number of its children samplers, i. Assuming there is only one request (sampler) in your Thread group and you are using the setting "All Active Threads" in. 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 -. In this case, we are using a JMeter plugin - Throughput Shaping timer. The Apache JMeter site actually puts the workings of the ramp-up period best:. 1 Answer. org. If you want to limit JMeter's throughput to 1100 requests per minute consider using Constant. 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. 0. e. Despite word "constant" in its name, you can use i. JMeter also provides a timer component, ‘Constant Throughput Timer’, which you can use to set the value of Transactions per. Note. The following is the list of JMeter 4. In-depth Analysis: Throughput Controller in JMeter and Splitting Threads to Requests. If you want to execute 300 000 queries in 24 hours you need to introduce a rate limiting on JMeter side to execute 208. Constant Timer. Ultimate Thread. 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. 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. 3. Lets consider below load scenario for example: Total no of users = 5. Also be. 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. Precise Throughput Timer: siêu phức tạp, mình sẽ tìm hiểu rồi viết sau (hên xui) IV. 2. Alternative options are: JMeter also provides a useful timer component to configure or set a constant throughput value to test the application load. Improve this answer. Click Add –> Timer –> Constant Timer. The various timers provided by JMeter include the constant timer, uniform random timer, constant throughput timer, Poisson random timer and Gaussian random timer. You can consider switching to Concurrency Thread Group and Throughput Shaping Timer. I want to use the Throughput Shaping Timer using JMeter API in my java code. Nested Class Summary. The most intuitive thing I could think of was using Constant Throughput Timer to control the number of requests sent,. 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. This plugin is specially designed to schedule RPS loads. If it is. So first of all try increasing the number of threads; Make sure to follow JMeter Best. Throughput controllers for all API calls is set to 100% 'Percent Executions' with 'Per User' ticked off. 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. I ended up using constant_throughput to control the number of requests per second. bsh_loc – folder, containing bsh-files. Issue: If i run the test, I was expecting the min throughput of 15 requests/sec - upto 16 requests /sec. We will perform the load test on the JCG home page (Constant Throughput Timer is only capable of pausing JMeter threads in order to slow them down to reach the target throughput. it worked. 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. 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. Click on Constant Throughput Timer; This timer has the following fields,. And if you changed load generator machine or server. 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. The difference between the uniform random timer and other two random timers (Gaussian and Poisson) are: 1. 2. How to add a Timer-Right Click on Thread Group -> Hover over Add -> Hover Over Timer -> Click on the required Timer. I would suggest going for Constant Throughput Timer. If you want to run parallel requests - just increase the number of threads in the Thread Group to reach the desired concurrency. JMeter Constant Timer, Constant Throughput Timer. Below timers are used to implement pacing in Jmeter to achieve the desired load/Business transactions. 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. In Gaussian and Poisson random timer, the random number generation is based on the pre-defined function, but in the. This is "closed workload" approach, and it has major drawbacks (see here why). For example: Constant Throughput Timer: Precise Throughput Timer: Why even making use of the Constant Throughput Timer I sometimes get a number of requests higher than the value specify in the Target Throughput (21 in the above image) If a indicate a value of 21 in the Target Throughput , isn't this constant supposed to guarantee a maximum value of 21 requests? Hướng dẫn sử dụng Timer trong JMeter – Add Precise Throughput Timer 2. Throughput Shaping Timer is a plugin and you need to install the plugin. If your application response time will be 2 seconds - you will get 200 RPS, 4 seconds - 100 RPS, etc. BeanShell Timer. Constant Throughput Timer : The Constant Throughput Timer is like the Precise Throughput Timer, except that it has fewer settings. Introduction to JMeter Throughput. Given you have the timer you produce less load so application has more chance to respond properly. Second I would recommend checking whether your system under test has enough headroom in terms of resources (CPU, RAM, Network, Disk, etc. There are 3 options to configure weighted load and highlight options provided by JMeter. Constant Throughput Timer. 1 Answer. 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. It is not even reaching 14 (well, except once)Irrespective of how much time the previous request took, it will apply the remaining time. 1. So the Sample 3 should start at the time is 22:05:07. As per documentation>. On top of that, it tries to maintain the exact amount of arrivals for a given timeframe ( throughputPeriod ). 3. If your goal is to mimic real users behavior as close as possible -. 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. 1. 1 Thread Group. 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。. If your script keeps hitting timeouts and includes these elements, remove or disable them unless they are important for your functional test scenario. Add Constant Timer as a child of the first request and configure it to introduce "sleep" for 30 minutes: in this case the delay will be introduced before first request, see A Comprehensive Guide to Using JMeter Timers article for more information. 一定のタイマーは、一定の遅延時間の値を追加することで構成できる一定の時間だけ次の要求を. How to calculate. To implement pacing in Apache JMeter™, we can use either use Groovy Scripting or one of these two timers: the Constant Throughput Timer or the Throughput Shaping Timer. g. Other timers may impact constant throughput timer target, so it is recommended not to use other timers. This video features #Constant #Throughput Timer in #JMeter. JMeter sends specific types of requests to the server; with the help of samplers, the thread group decides which request is required to. HTTP is a stateful protocol, it means that JMeter's HTTP Request samplers wait for response prior to sending a new request so. JMeter understand Thread Group / Throughput and INCLUDE. 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. Different Thread Groups having different number of threads; Throughput Controller; Switch Controller or Weighted Switch Controller plugins. Uniform Random Timer. This way, You can use constant throughput timer in your load test plan to. Basic Timers: Constant Timer → the most basic timer type which adds a simple delay to your test with no other parameters. This will add Constant Timer at Thread Group level. You can consider switching to Concurrency Thread Group and Throughput Shaping Timer. As per JMeter Glossary: Throughput is calculated as requests/unit of time. Gaussian Random Timer A Gaussian Random Timer calculates the thread delay time. 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. control. jmeter. 1 Answer. 3. 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. 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. 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 above information is not enough try to elaborate your query and include i. Constant throughput timer (Timer) jmeter; Share. Use Throughput Shaping Timer. While running test simulations, it is sometimes necessary to be able to specify the throughput in terms of the number of requests per minute. Also, JMeter tries to set the throughput per minute, so tests should be longer then 1 or 2 minutes with that timer. That means 40 samples has been executed in 1 minute. 1 Answer. 10 000 requests in one hour is something like 166. Use Precise Throughput Timer. 8K subscribers. That means 40 samples has been executed in 1 minute. 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. The formula is: Throughput = (number of requests) / (total time). 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. 0. 1. 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. The following article provides an outline for JMeter Throughput. 4. 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. Debug sampler throughput can go more than 100000/sec. See How to use JMeter's Throughput Constant Timer for details. Subscribe. jsr223 request Constant Throughput Timer - 100 rpm. N. Constant Throughput Timer can only pause the threads in order to limit JMeter to the defined number of requests per minute. 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. In this case, we are using a JMeter plugin – Throughput Shaping timer. รวมถึง. 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. 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. Let’s now re-run our test plan and check the View Results Tree. Ramp-up is the time for JMeter to kick off the virtual users from point 1. I think the documentation was before Ultimate Thread Group was introduced. Pre Processors: allow you to perform operations/actions before. Constant Throughput Timer; JSR223 Timer #20. There is a Constant Throughput timer, which as far as I understand, is to control throughput for individual requests. 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. Here are the workarounds: Calculate the number of threads you need to achieve your. Share. Built into JMeter, there are 9 different types of timers available: . In planning our load tests, our goal is often to measure whether or not our application (not just the. The time is calculated from the start of the first sample to the end of the last sample. Built-in Constant Throughput Timer; Throughput Shaping Timer from jmeter-plugins. 7 requests 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. To achieve this look at the Constant Throughput Timer. 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. Thread group elements are the beginning points of any test plan. Precise Throughput Timer allows you to reach and maintain the desired throughput (number of requests per given amount of time) Gaussian Random Timer - allows you to simulate "think time". Constant Throughput Timer added with throughtput = 10 and Calculate Throughput based on = all active threads. This timer tries to maintain a constant throughput throughout the test and achieve the target. If you need to execute 1000 requests in 60 minutes you need to run 16. All controllers and samplers must be under a thread group. So if the server could not manage the load, it results in minimum throughput. Follow edited Mar 4, 2021 at 7:35. Precise Throughput Timer. timer. Constant Throughput Timer pauses active threads to reach throughput level you define. Tổng kếtConstant Throughput Timer is the easiest of built-in test elements, 2 requests per second is 120 requests per minute. 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. Throughput Controller - You can set the Max number of executions, OR the Percentage of executions of the sample (i. JMeter provides a variety of Timers and each of them allows introducing delays between requests mainly to simulate real user "think time" 75 requests in 2 minutes is approx 37 requests per minute and if you need to make it 15x times slower you need to execute ~2. Dmitri T. 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. Bạn sẽ nhập 1 giá trị ngẫu nhiên vào Constant Timer thay vì giá trị cụ thể. 1. To achieve this I have configured a Constant Throughput Timer to 12000 requests per minute (active for. GitHub Repo: has mentioned that constant throughput variable value can be changed using a JavaScript or BeanShell function to provide a changing value. Constant Throughput Timer is only capable of pausing JMeter threads in order to slow them down to reach the target throughput. I am using a Constant Throughput Timer with "Calculate throughput based on: all active threads in current thread group" selected. And run the following to. This will ensure that request is made minimum 100 per minute. 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. 1. 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. 6 requests per minute, in this case they will be evenly distributed. I want to change the expected request. 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. Constant Throughput Timer will let you control the flow of requests to be. Constant Throughput Timer. Tool ที่เราใช้ในการทำ performance test ก็คือ JMeter ซึ่งเป็น tool opensource ที่เขียนด้วย Java สำหรับการทำ load test การจำลอง request จากหลาย user ที่เข้ามาพร้อมกันทำ. These timers will pause the threads and try to achieve the specified throughput value. Select it and you. Set Target Throughput = 40. First of all, Constant Throughput Timer can only pause JMeter threads in order to limit JMeter's throughput to the desired value. 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. BSF Timer. java by adding it to the source directory of my project folder. View Results Tree 5. Open your JMeter script and right click on Thread Group. 1. This video features Precise Throughput Timer in #JMeter. although the Timer is called the Constant Throughput timer, the throughput value does not need to be constant. Response Assertion. 1 Answer. In this example, a Constant Timer with 15000 milliseconds is used for sleep time. Let's see a brief thought on this: To achieve the target throughput, you need to have. 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. Go back to the "Test Plan" node. When you need to add a delay based on an edge condition which is not covered by other timers i. 8,610 13 13 gold badges 104 104 silver badges 233 233 bronze badges. Uniform Random Timer. 0. jmxaccording to jmeter manual ramp up is: How long JMeter should take to get all the threads started. In JMeter, the ‘Timer’ element simulates the real user behaviour of taking a pause on a webpage. See How to use JMeter's Constant Throughput Timer. 4. Step 3. Constant Timer. Doing the math, it should send a request every 5 milliseconds, and being 200 Threads, it should send 200 requests/second (200*5 = 1000ms). Constant Timer with a Thread Delay of 5 milliseconds. 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. Essentially, it sticks with a target throughput very closely, and doesn’t allow for the flexible. 5. 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. Component Properties - Properties that contain information about the duration and.