JMeter OutOfMemoryError

Question

I am facing below OutOfMemor errors, and JMeter stops working....

java.lang.OutOfMemoryError: Java heap space Dumping heap to
    java_pid4412.hprof ... Heap         


        

Answer 1

Adjust the heap size as mentioned in the other answers and also take some best practices into account

• When running a test (not when validating of course) use the non-gui mode
• Disable any heavy listener such as View Result Tree but instead use a Simple Data Writer and analyze your data afterwards

These 2 items will already greatly increase your performance and heap size usage