A constant throughput timer in JMeter is used to achieve the actual output by computing the total number of requests. testelement. 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. 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. Ok, so I have control over the below parameters in Apache JMeter: Number of Threads (users) Ramp-up period (in seconds) How do I test for varying sampling rate and not varying user addition rate? Even a fixed sampling rate would do. Jmeter: Constant throughput Timer with Ultimate Thread Group. 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. Introduction to JMeter Throughput. JMeter Constant Throughput Timer is used as a goal-oriented element which helps to achieve the desired throughput (Total Number of Requests). new_throughput – new intensity value, op/min. 2. Very silly mistake with a conclusion: Check your throughput value, test for longer periods. Follow edited Mar 4, 2021 at 7:35. Figure shows, Constant Throughput Timer for 60 requests per. 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. Constant Throughput Timer with a target throughput of 12000. Here, we’ve added a Constant Timer with a Thread Delay of three seconds to our thread group. 4. Name Email Website. e. org. Try using Constant Throughput Timer. Constant Throughput Timer will limit JMeter to the desired rate which will give you 10 000 requests in hour (assuming your application will be able to handle the requests fast enough) In the majority of cases it's easier to use custom Thread Groups such as Ultimate Thread Group. Throughput Shaping Timer. e. Test execution result will looks like below for constant throughput timer jmeter example. It is not even reaching 14 (well, except once)Irrespective of how much time the previous request took, it will apply the remaining time. This timer tries to maintain a constant throughput throughout the test and achieve the target. 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. Built-in Constant Throughput Timer; Throughput Shaping Timer from jmeter-plugins. apache. Select it and you. How to add a Timer-Right Click on Thread Group -> Hover over Add -> Hover Over Timer -> Click on the required Timer. 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. Throughput, essentially, is the. GitHub Repo: It has mentioned that constant throughput variable value can be changed using a JavaScript or BeanShell function to provide a changing value. Constant Timer: 5000 ms (as configured) End Time of this sample is = 22:05:01. ramp up to 6000 samples per min and so on up to. First of all, Constant Throughput Timer can only pause JMeter threads in order to limit JMeter's throughput to the desired value. 8,610 13 13 gold badges 104 104 silver badges 233 233 bronze badges. This timer adds a delay between each request. 2. 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. JMeter Perfmon. If you want to run parallel requests - just increase the number of threads in the Thread Group to reach the desired concurrency. You can use Constant Throughput Timer or Throughput Shaping Timer in order to limit JMeter's throughput to the given numbers and see whether it will be able to complete 10k requests in 1 hour or not. 5K users or somewhere around it. Some commonly used JMeter Timers are: Constant Timer; Uniform Random Timer; Precise Throughput Timer; Constant Throughput Timer; Gaussian Random Timer; JSR223 Timer; Poisson Random. In case of throughput; the higher the better. Given you have 200 threads and 300 seconds ramp-up time it means that JMeter will start 200 threads in 300 seconds. That means 40 samples has been executed in 1 minute. Introduction. If the request took 1000 mSec, it will apply 4500-1000 = 3500 mSec as the pacing. 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". 0. The constant throughput timer delays the request to ensure that JMeter does not perform more requests than specified. Constant Throughput Timer is precise enough at minute level, so if you configure your test to last longer - you will see the throughput going down gradually and after 1st minute it should be throttled to your 100 requests per minute. Constant Throughput Timer will try to slow down JMeter's throughput to the defined value by sleeping for the period of time before executing the Sampler if. 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:. Though you can develop test plans manually by building them from within the JMeter GUI, or generating them via some domain-specific language (DSL), recording scripts by JMeter's HTTP(S) Test Script Recorder is one of the. Results Action Set Handler 4. All you need to do is to slow it down a little bit, one of the options is adding a Constant Throughput Timer. 0 (exclusive) Multiplied by “Random Delay Maximum”. The achieved target may be slightly high. 5. Hot Network QuestionsYou can slow down JMeter's number of requests per minute by using Constant Throughput Timer. The constant timer is the basic timer among all the given ones. This is "closed workload" approach, and it has major drawbacks (see here why). Component Properties - Properties that contain information about the duration and. Make sure that all the Samplers are in the Constant. I even tried giving 8 users, rampup-1sec, loopcount-infinite and duration-1hour, with constant throughput timer set to 480 req/sec but it ended up giving me total processed samples as 28700; Would be helpful if I could get any other approach where I could exactly process 26. This way, You can use constant throughput timer in your load test plan to achieve. How to create JMeter test with parallel execution in one thread group with specific throughput? 0. 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. The purpose of the ‘Timer’ element is to pause a JMeter Thread for a certain amount of time. Note. Click on Constant Throughput Timer; This timer has the following fields,. 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. Step 2. Now, add the Constant Throughput Timer. July 1, 2023 by PerfMatrix. e. Use Throughput Shaping Timer. Constant Throughput Timer The constant throughput timer is a special type of timer used to create pauses. How to calculate. I would suggest going for Constant Throughput Timer. org. This way, You can use constant throughput timer in your load test plan to. Follow. g. Petr. is correct, but if you leave it as is JMeter will execute requests as fast as it can. 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. Constant Throughput Timer is only capable of pausing JMeter threads in order to limit the number of requests per second to the given value. 038. 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. JRS223 Timer. B. In the JMeter script, Constant Timer is used to add a constant delay before processing a sampler. Follow answered Nov 2, 2022 at 4:51. this is how you can control for how long JMeter threads are allowed to run. 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. Gaussian Random Timer. "Throughput depends on response time. Constant Throughput Timer added with throughtput = 10 and Calculate Throughput based on = all active threads. 3. Constant Timer at Thread Group level. 2. Given you have Loop Count set to 1 JMeter will shut down. This blog post answers this questions and helps you build a JMeter test, step by step, to try it out. See How to use JMeter's Constant Throughput Timer. In both the cases structure of the test will be like the following:Be aware that Constant Throughput Timer is accurate enough on minute level so it can start pausing the threads only after 1 minute. My website's expected performance is 200 concurrent users at 8 RPS. Tổng kết 2 Answers. 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. 7. So the Sample 3 should start at the time is 22:05:07. To elaborate - if a Constant Throughput Timer is set to 1 sample, and 1 thread is created, then the Transaction Controller is still not considered a singular sample as far as CTT is. 1. If it is added under a sampler then the parent sampler will wait for the defined time. thread group (thread = 1000, ramp up = 100 sec, loop count = 1) loop controller( above 3 request with loop count = 12) constant timer = 300000 millisecond. Because JMeter sometimes displays throughput in per minute and sometimes in per second, whereas the hits per second is always per second. The number of requests per second has to be controlled by using constant throughput timer (or the one from jmeter-plugins). 1. 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. e. 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. 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. However I fail to see how Constant Throughput Timer is connected with the timeouts because it slows the number of. 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. Share. Apache JMeter is an open source Java based tool that enables you to perform functional, load, performance and regression tests on an application. N. Throughput shaping timer or CTT to control the expected throughput. basically, drop the synchronising timer, use a constant throughput timer instead, configure wait times and then calculate the. Another option is implementing pacing. If you change the Constant Timer is zero, you will see the result is changed. 1 Answer. As the name implies, the thread group element controls the number of. 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. so in your plan, you add. host, port – jmeter’s host and port for the machine, where it is running. 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. Precise Throughput Timer. Add Synchronizing Timer to the request and set Number of Simultaneous Users to Group by to X. Constant Throughput Timer can. Let's see a brief thought on this: To achieve the target throughput, you need to have. Constant Throughput Timer treats samplers individually therefore you need to multiply the throughput for the transaction by the number of its children samplers, i. Basic Timers: Constant Timer → the most basic timer type which adds a simple delay to your test with no other parameters. e. tgz (or whatever version you downloaded) Change into the unzipped directory: $ cd apache-jmeter-5. This timer generates Poisson arrivals with constant throughput. JMeter Timer Overview The purpose of all “Timer” test elements is pausing a JMeter Thread representing a virtual user for a certain amount of time. Por ejemplo, cuando necesitamos mantener el servidor bajo cierta presión durante mucho tiempo, podemos controlar el rendimiento a través de este temporizador. If the request took 1000 mSec, it will apply 4500-1000 = 3500 mSec as the pacing. Mouse hovers "Add". Throughput - the Throughput is measured in requests per second/minute/hour. 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. 1. These timers will pause the threads and try to achieve the specified throughput value. Assuming there is only one request (sampler) in your Thread group and you are using the setting "All Active Threads" in Constant Throughput Timer. All you need to do is to slow it down a little bit, one of the options is adding a Constant Throughput Timer. So you must supply enough threads in the Thread Group to create more requests per second than you're trying to achieve and then limit the number of requests per second to the desired rate using Constant Throughput Timer. 6 requests per minute or 2. I ended up using constant_throughput to control the number of requests per second. 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. Thanks @Dmitri. 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. You may need to try it out in a few runs to find the optimum value of sleep time to get the desired throughput. What are Samples in JMeter? It generates one or more sample results. See Also: Serialized Form. See Also: Serialized Form. Total Http Requests - 24, Total Http Request/min - 12, Test Duration 2min, Waiting. If you need to execute 1000 requests in 60 minutes you need to run 16. And I set Loop Count: forever. I ended up using constant_throughput to control the number of requests per second. Concurrency Thread Group doesn’t provide the ability to define initial delay, step transition and ramp-down - which the Stepping Thread Group does. 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. If you need to produce the load exactly 50 requests per minute - I would suggest going for Constant Throughput Timer which can pause the JMeter Threads in order to reach the target throughput. How to Use “ Constant Throughput Timer ” in JMeter Loadium · Follow 3 min read · Feb 22 Let’s think about an end-to-end scenario for an e-commerce website. Constant throughput timer is used to control the execution of requests according to the specified throughput. . jmeter; Share. It will also give you the saturation point and the bottleneck in case. Constant Throughput Timer. Throughout the Hold Load time(180sec) the requests will be looped. g. The easiest way of controlling the number of requests per second (throughput) in JMeter test is using Constant Throughput Timer. Figure 01: JMeter Timer Elements Scope of JMeter Timer: 1. you will be able to send 50 requests per second, etc. 6 requests per minute, in this case they will be evenly distributed. Based on RPS you want you can either set the value low for less number of requests and more for more RPS. The Throughput Shaping Timer plugin also adds a number of properties to the standard JMeter functionality: elementName_totalDuration is a sum of all durations from the Request Per Second Schedule. 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. 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. For further detail check JMeter blog about Constant Throughput Timer. Constant Throughput Timer: This timer. 2. 线程组线程数设为10. Oct 10, 2022 at. If your goal is to mimic real users behavior as close as possible -. Constant Throughput Timer is only capable of pausing JMeter threads in order to limit the number of requests per second to the given value. 3. Given here are some JMeter listeners that you can use for this purpose: Summary Report Aggregate Report Aggregate Graph Graph Results. Sorted by: 2. Throughput timer is in root of test plan, Where as other timers are only applicable within scope of controllers. BeanShell 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. Testing without a JMeter timer can create irregular test results because the simulated requests will come in a different pattern than. In JMeter, the ‘Timer’ element simulates the real user behaviour of taking a pause on a webpage. If current number of threads is not enough in order to. July 1, 2023 by PerfMatrix. I have a JMeter Test Plan where I am using different Timers like Throughput Timer, Constant Timer & Synchronizing Timer. Add 1. Before understanding the semantics of throughput, let’s look at the concept. These timers will pause the threads and try to achieve the specified throughput value. e. Do not include multiple CTT in your test script as it will lead to a hoax. 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. 4K views 2 years ago Learn Apache JMeter Series. While running test simulations, it is sometimes necessary to be able to specify the throughput in terms of the number of requests per minute. I would say that these timers are mutually exclusive. And if you changed load generator machine or server. Here is my script detail:->Simple Login request. 30. Other elements, e. You need to run Sampler(s) at rate of 600 per minute so this is what you need to specify in the Constant Throughput Timer. either execute this 100 times OR. Debug sampler throughput can go more than 100000/sec. This is the function of Constant Throughput Timer. 0. To get the exact sampler's count at the end of the test, you need to eliminate transaction's count from the aggregate report to check whether constant throughput timer is working fine or not. 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 total number of requests JMeter will be able to make will mostly depend on application response time. If you want to slow. 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. 0. Improve this answer. This class implements a constant throughput timer. Boundary value Extractor iv. I am using a Constant Throughput Timer with "Calculate throughput based on: all active threads in current thread group" selected. answered Apr 20, 2014 at 16:43. Issue: If i run the test, I was expecting the min throughput of 15 requests/sec - upto 16 requests /sec. To achieve this look at the Constant Throughput Timer. The. If your application response time will be 2 seconds - you will get 200 RPS, 4 seconds - 100 RPS, etc. Its called JMeter Throughput Constant Timer. 4. Response Assertion. Below you will find a categorized list of the most common timer elements included with JMeter. 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 it is precise enough only on "minute" level so you might need to play with ramp-up period. 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. However, in one case I need an additional constant timer because I need to wait a certain time between two requests. You can also use a JMeter Function or Variable in the “Thread Delay” input. The Uniform Random Timer pauses the thread by a factor of: The next pseudorandom uniformly-distributed value in range between 0. I have tried with below jmeter tools. 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. Use Cases. Open your JMeter script and right click on Thread Group. Ramp-up is the time for JMeter to kick off the virtual users from point 1. JMeter also provides a timer component, ‘Constant Throughput Timer’, which you can use to set the value of Transactions per. Download. In the JMeter script, Constant Timer is used to add a constant delay before processing a sampler. I have tried JMeter with a constant throughput timer with throughput = 1500000 per second and running 1000 threads. 0 elements: Constant Timer. 2. We highly recommend using the Uniform Random Timer. Constant Timer. I want to change the expected request. JMeter: Not enought delay between HTTP samplers. Introduction. Constant Throughput Timer treats samplers individually therefore you need to multiply the throughput for the transaction by the number of its children samplers, i. 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. So in total you will have approximately 50 + 5 samplers, the actual amount will vary depending on your response time. jmeter; performance-testing; Share. Pre Processors: allow you to perform operations/actions before. Use CTT in Test Plan level,not in thread group level. We will conduct a sample load test with 100 concurrent users (threads) and evaluate the throughput value. และเราสามารถใช้ Constant Throughput Timer ในการกำหนดจำนวน request ต่อนาทีที่เรา. Throughput Shaping Timer. Set Target Throughput = 40. 4. 2. Có rất nhiều timers được cung cấp trong JMeter: Constant Timer, Gaussian Random Timer, Uniform Random Timer, Synchronizing Timer, etc. 1) with Constant Throughput Timer value as 1200/min with "All active threads" and Timer added at the root of script. 2. 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. testelement. There are 3 options to configure weighted load and highlight options provided by JMeter. This video features #Constant #Throughput Timer in #JMeter. Also be aware that: Although Constant Throughput Timer accepts value in Requests/min and you are saying that you will use 120/sec, so you will have to provide a value of 7200 in Constant Throughput Timer to achieve 120/sec. View Results Tree 5. 目标吞吐量（target throughput)单位是每分钟发送的请求数. Throughput Shaping Timer Properties. Jmeter variable value update based on time. I have already referenced the class file called VariableThroughputTimer. We should see. 0. If you want to send 1 request each 20 seconds - the same approach as for point 2 but Target Throughput will. Example 1: you have submitted a request and it returns "pending" status. 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. This can be done by using Apache JMeter™´s Constant Throughput Timer and the Beanshell server. java by adding it to the source directory of my project folder. JMeter Constant Throughput Timer. Now, add the Constant Throughput Timer. Concurrency depends on your test plan and application response time. ${__P(throughput)}. First of all try increasing the number of threads. 0. The various timers provided by JMeter include the constant timer, uniform random timer, constant throughput timer, Poisson random timer and Gaussian random timer. " --- this is not entirely true. Please suggest what should be the workaround of it? You can go for Constant Throughput Timer, despite the word "constant" in its name it doesn't have to be constant, you can use __P() function for specifying the desired throughput and amend it from Beanshell Server, another Thread Group, using JSR223 Test Elements, etc. Let’s think about an end-to-end scenario for an e-commerce website. Constant Throughput Timer: This timer define the number of sampled need to be executed per. Doing the math, it should send a request every 5 milliseconds, and being 200 Threads, it should send 200 requests/second (200*5 = 1000ms). Test Case 1: - 3 requests per minute - 1 request each 20 seconds. This will add Constant Timer at Thread Group level. Subscribe. Uniform Random Timer. jmxaccording to jmeter manual ramp up is: How long JMeter should take to get all the threads started. So overall 20 users - ramped up in 1 seconds. To apply a timer to a single sampler, add the timer as a child element of the sampler. Constant Timer: This is one of the most popularly used timer in JMeter. If the machine stamps sixty widgets in one minute, it’s throughput is one widget per second. Also, JMeter tries to set the throughput per minute, so tests should be longer then 1 or 2 minutes with that timer. . Constant Throughput Timer; JSR223 Timer #20. e. Constant Throughput Timer is precise enough on minute level so you might need to adjust your ramp-up period or consider using Precise Throughput Timer instead Constant Throughput Timer can only pause the threads to limit JMeter's requests execution rate to the given value so make sure to supply sufficient amount in the Thread. In my GET Thread Group I have added a bean shell processor- to convert the access token into a JMeter Property via __setProperty() function. The constant throughput timer delays the request to ensure that JMeter does not perform more requests than. Constant Timer at Thread Group level. The simplest way is to add a single 'Constant Timer' to your thread group at the same level as your HTTP requests. Sorted by: 2. Given here are some JMeter listeners that you can use for this purpose: Summary Report Aggregate Report Aggregate Graph Graph Results. 3. 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. As per documentation: Set Target Throughput = 40. Go back to the "Test Plan" node. I would say that these timers are mutually exclusive. How to generate number of requests per second for one user. This includes any intervals between samples, as it is supposed to represent the load on the server. Nested Class Summary. 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. 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). So the real throughput depends on 2. Alternative options are:JMeter also provides a useful timer component to configure or set a constant throughput value to test the application load. 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. log: Much of the content of the jmeter. JMeter Constant Throughput Timer Example. So if the server could not manage the load, it results in minimum throughput. 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. Test Plan 2. log can be very useful for troubleshooting JMeter-specific issues. A Constant Throughput Timer paces the samplers under its influence so that the total number of samples per unit of. This plugin also works similarly to Constant Throughput Timer, which pauses the threads based on the target Throughput. Remember 2 things: Throughput Timer isn't able to create threads, it can only slow them down so make sure that you provide enough threads to reach desired target throughput July 1, 2023 by PerfMatrix. Share. One widget at a time is passed through a machine that stamps it with a label. How many threads you use depends. Remember - if the application itself is not supporting the desired throughput, jmeter can not help here. I currently need to execute a test with apache Jmeter that makes 400 requests per second. So you must supply enough threads in the Thread Group to create more requests per second than you're trying to achieve and then limit the number of requests per second to the desired rate using. Constant Throughput Timer - 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. Each having its own constant throughput timer . 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. Remember 2 things: Constant Throughput Timer is precise enough on minute level, make sure your test lasts long enough so it could be. Its called JMeter Throughput Constant Timer. 0. Essentially, it sticks with a target throughput very closely, and doesn’t allow for the flexible. 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. __setProperty() function or even outside JMeter via i. 1 Answer. 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. Constant Timer at Thread Group level. As per JMeter Glossary: Throughput is calculated as requests/unit of time. If I disable the constant-timer, I can see all the request being made in the span of 1ms: Share. รวมถึง. My test config in jmeter. – EBDS.