I\'m testing using Apache\'s Jmeter, I\'m simply accessing one page of my companies website and turning up the number of users until it reaches a threshold, the problem is t
After increasing Xms et Xmx heap size, I had to make my Java run in 64 bits mode. In jmeter.bat :
Xms
Xmx
jmeter.bat
set JM_LAUNCH=java.exe -d64
Obviously, you need to run a 64 bits OS and have installed Java 64 bits (see https://www.java.com/en/download/manual.jsp)