Test how much memory the JDK can use in Linux and Windows

Under the command line with the java-xmxxxxxm-version command to test, and then gradually increase the value of XXXX, if performed normally indicates that the specified memory size is available, otherwise the error message will be printed.

found that the maximum number of java-xmx3600m-version in Linux is more than 3600 will be an error

[Email protected] bin]# java-xmx3700m-version
Error occurred during initialization of VMS
Could not reserve enough space for object heap
Could not create the Java virtual machine.

window under the same command test found can not exceed 1.6G

Summary conclusion:

Linux can be more than 3g,windows under the maximum of about 1.6G

Test how much memory the JDK can use in Linux and Windows