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nGrinder 3.2 Release Note

nGrinder is almost approaching to the ultimate performance testing solution. We believe nGrinder 3.2 is the most developer friendly performance testing tool ever.

  • If you want to see more generic product info, please visit  

1. Release Info

  • Version : 3.2
  • Release Date : 2013.05.28

2. Changes


  • We support not only Jython as a script language but also JUnit styled Groovy and Groovy Maven Project from 3.2. It is the amazing approach in which you can easily pre-run and debug the test in your IDE such as eclipse connecting to nGrinder subversion repository.
  • We support more vusers per agent by calibrating agent's JVM options. 
    • nGrinder 3.2 supports 4000 vuser(8 times more than before) per agent when you use Groovy and 4GRam agents.
    • Delete ${NGRINDER_HOME}/process_and_thread_policy.js to apply new process and thread policy in prior to ngrinder 3.2 installation. 
    • See the our test result
  • Now agent machines are rarely crashed by memory swapping. nGrinder controller stops the test which uses more than 97% memory of agents by force.  
  • IE10 is now partially supported. We added IE9 compatibility mode option to show nGrinder correctly in IE10.
    • We will continue to completely fix this by 3.2.1 
  • Graph fluctuation by nGrinder internal processing overhead is reduced. Now you can see the more stable graph.
  • The nGrinder usage is reported to our Google analytics everyday. We only collect the controller IP and the count of performance test run the last day.
    • If you don't like it, please turn it off by setting in system.conf
  • A user can run agents with the more detailed memory options by providing grinder.memory.permsize=Value and grinder.memory.maxpermsize=Value in the unit of mega in file as same folder of the selected script.
  • SVN user can enjoy the user switching feature as well just like you do in the browser.
  • And.. several minor UI enhancements.


3. OS, DBMS supports

  • Linux, Windows, Mac OSX is supported.
  • Supports CUBRID, H2 as DB. The default DBMS is H2.

4. Requirements

  • Be required over Oracle JDK 1.6 version.
  • Tomcat 6.X later


6. References

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