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43

Looking into Jmeter User's Manual will be indeed good as first step (Getting Started, Building a Test Plan, Building a Web Test Plan). Several step-by-step guidelines about Jmeter setup and usage for performance/load testing you can find here: - Jmeter articles and tutorials: Load Testing your Applications with Apache JMeter Using JMeter Effective load ...


13

Similar questions have been asked a number of times. The general consensus is that UI automation tools such as Selenium are not a good choice for load testing. There are a number of reasons why, but the main one is that it is a LOT slower. You can easily spin up thousands of concurrent requests in a second in a tool like JMeter which to reproduce in ...


12

It is very likely you will get differing results. Especially in response times. This is mainly due to latency caused by the Geographical distribution. This will become important if response times is one of the metrics you are using to understand the website's ability to cope/scale under load. A simple reflection of this is; go to http://amazon.co.uk/ ...


9

JMeter thread can be stopped with standard JMeter sampler Test Action. There are 3 options: Pause, Stop and Stop Now.


9

I have had some luck using Grinder. It is Java based but you can also write your scripts in Jython or Clojure. You said that you would like to take advantage of your team's current Selenium scripts and expertise performance testing. You did not describe your regression test scripts, but you may want to reconsider whether they are appropriate. In ...


8

Open you test plan in the Jmeter GUI and check the HTTP Response Timeout limit. For this, in Jmeter, Open the TEST Plan Got to the HTTP Request Sampler under Threads In the Timeouts section set the Response Timeout limit and Save the Test Plan. Now try to run your test from the command line. It will stop the test after the timeout limit is reached!


7

You could also check out Gatling, which is an open source stress tool based on akka. On the Gatling homepage, you'll find a direct comparison of how your test specification will look in Gatling vs. in JMeter. This might help you decide between these too. If you want to create massive amounts of load, I think there's nothing better than akka as an engine. ...


7

Try recording your test script using the blazemeter's chrome extension. Once you have recorded the script download the jmx file and load it in jmeter and run your test. UPDATE (from comments): The script is not chrome-specific. It records the script in jmx which is the file format in which the jmeter test plans are saved, so once recorded you can edit it ...


7

Imagine a jackhammer with a Phillips-head screwdriver welded onto the handle. You could, in theory, use this modified jackhammer for screwing things together, but you probably wouldn't want to. JMeter is a tool for performance testing. Selenium is a tool for functional testing. I talk about the differences between the two kinds of testing here.


7

After a lot of Googling and trial and error I found out that a tag in the JMX file that Blazemeter's Chrome Extension generates was creating a problem. The JMX file included a <hashTree/> in several places and this tag was causing the JMX file to not being read by Jmeter in non GUI mode. So I removed this tag and tried to run the test and got a hell ...


6

Java The Apache JMeter™ desktop application is open source software, a 100% pure Java application designed to load test functional behavior and measure performance. It was originally designed for testing Web Applications but has since expanded to other test functions. A lot of Java applications start with a j, like jEdit and it often indicates ...


6

I have put together a really simple article of doing performance testing with Jmeter over here - http://testcy.co.in/performance-testing-jmeter. Even novice users with not much technical knowledge of code can do performance testing using this method. For more tutorials, here you go, http://www.tutorialspoint.com/jmeter/jmeter_tutorial.pdf ...


5

Based on the answer and comments I had received what I wound up doing was: Use a Once Only Controller with a BeanShell Sampler to read the file into an array, then when I need to pull that data I just use a BeanShell PreProccessor with: import java.util.Random; Random random = new Random(); vars.put("MyChosenVariable", vars.get("AvailChoices_" + ...


5

Randomizing the file BEFORE use is a much better approach. It will much more efficiently (especially in the case of significant amount of entries) to randomize the order of entries in your CSV file before the test - and then read prepared data sequentially, in way you like (via CSV Data Set e.g.). You can do the preparation using e.g. perl script or even ...


5

Please see the following link: http://jmeter.apache.org/usermanual/test_plan.html#thread_group The 'number of threads' are equivalent to the number of concurrent users that you are looking for. In your scenario above, you have 20 concurrent threads (users) and each thread will run 10 times.


4

I'll assume you're just using JMeter as a type of Web Crawler with a fixed set of pages to consume, and you're only measuring response times and http status. Create a thread group of 100 users Place a CSV Data Set Config under the thread group The CSV contains one URL per line The CSV loads into a parameter named "URL" A HTTP Sampler is used where the ...


4

Does your company have a firewall proxy? I've run into this same issue with non-Vaddin apps, and resolved the issue by launching Jmeter with proxy info. From the command line, it looks like this: jmeter.bat -H proxyDomain -P proxyPort -u proxyUsername -a proxyPassword


4

JMeter is an excellent choice for your requirements. JMeter has a loop controller: http://jmeter.apache.org/usermanual/component_reference.html#Loop_Controller, you may want to add a counter or simply use a user defined variable. Both options will work. The easiest is using counters - Thread Group -- Loop A --- Counter 1 (Var name: C1) --- Loop B ---- ...


4

'Also JMeter concurrent threads are not "concurrent users" as real-life people do pauses between actions on web pages. If you don't set any pauses in your tests then 20 concurrent threads will stand for something like 200-250 concurrent users.' Yes, I am in an argument with a client about this fact. They are thinking 50 Threads = 50 Users. But there are no ...


4

'10000 users' using jmeter is pretty tough on single machine considering given configuration, the maximum number of threads supported by jmeter will be 300 to 400 depending on your script, eventually jmeter will get stuck with 'OutOfMemoryError' and it will create a very large dump file. it would be best to use distributed jmeter and simulate distributed ...


4

It depends on what your test is doing. If it's something long enough - it will be 20, if it's something very short - it'll be 1. JMeter offers several options to control the load. 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 ...


4

Option 1: You can keep the user count as 1 and Loop count as 100 in your thread group. This way your script will be executed 100 times, without concurrency of users and one user at a time. you can use CSV file if you want to change the user login credentials and other data at each loop starting i.e. different data for different user. Option 2: Another ...


4

You are running the JMeter on your local machine. The load on your local machine comes from creating the requests to be sent to the server and handling the responses from the server. You may want to check for example this blog post for performance tuning tips, such as running real load tests in non-gui mode.


4

Answering the comments above, Well I had Java and Jmeter installed correctly with ClassPath and everything. I also tried running Command Prompt as Administrator but got the same result. There was no problem in that. That is why the GUI version was working properly in first place. After a lot of R&D and Googling I found out that the problem was with the ...


4

To avoid mutual interference it is much better to run JMeter and Application Under Test on different hosts. Theoretically you can have them on same machine but results won't be reliable. Load Testing is not only about getting main metrics and KPIs like response time, transactions per second, throughput, etc. - a lot of other information needs to be ...


3

There are no tools that can provide you client-side rendering times. Client side rendering is not a measurable value, unless all of the devices accessing the system are identical in terms of hardware and network access to the SUT. However, It is completely viable to do a stopwatch test of the total page rendering time, as long as you communicate to the ...


3

Finally I found the solution to the problem I was facing. I just had to figure out on which requests I had to place the viewState extractors. I was actually placing extractors to every request where viewState was there in the response and using the extractor's reference in the next request.


3

I tried my hand with Gatling, and I would rate it way way over Jmeter. Biggest advantage is you get to write some code for a load test- introduces type safely, re-usability and maintainability. Scala is not hard to learn for a java developers. You can generate higher load without actually choking your own machine. Performance of Jmeter itself decreases ...


3

Typically on a Web application an idle user will consume almost no server resources. The constraint will be the amount of memory or database space used to store the users session. If the server can therefore support 2000 users you shouldn't have any problem. That said a more real concern should be the impact on performance of the server due to the extra ...


3

I would recommend JMeter as: Price JMeter: free and open source MSVS: Test Professional costs around $2000 per developer. OS supported JMeter: any MSVS: Windows only Protocols supported JMeter: HTTP, FTP, JDBC, SOAP, TCP, JMS, SMTP, POP3, IMSP MSVS: HTTP However if your company has Microsoft products based development infrastructure, like Team ...



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