Sets the maximum long-lasting technology space dimension (in bytes). This feature was deprecated in JDK eight and superseded because of the -XX:MaxMetaspaceSize selection.
Apps embedding the JVM routinely have to entice signals like SIGINT or SIGTERM, which can cause interference Along with the JVM signal handlers.
Permits printing of ergonomically chosen JVM flags that appeared over the command line. It might be practical to be aware of the ergonomic values established from the JVM, such as the heap Area dimensions and the chosen rubbish collector. By default, this selection is disabled and flags aren’t printed.
The one time you may have to disable This is often on Mac OS, where by its use imposes a most of 10240, and that is lessen than the particular method most.
Home windows: The next instance exhibits how the -XX:OnError possibility can be used to run the userdump.exe utility to acquire a crash dump in case of an irrecoverable mistake (the %p designates The present procedure).
Specifies the maximum dimensions (in bytes) of disk data to help keep for that default recording. Append k or K, to specify the size in KB, m or M to specify the scale in MB, or g or G to specify the size in GB. By default, the maximum sizing of disk knowledge isn’t minimal, which parameter is ready to 0.
So as to add quite a few instructions, both specify the this hyperlink -XX:CompileCommand possibility a number of instances, or different Each individual argument With all the new line separator (n). The following instructions can be found:
File names in an argument file are relative to the current Listing, to not the location of the argument file.
log command. Since the diagnostic instructions are instantly exposed as MBeans, You try this out should use JMX to alter logging configuration at run time.
Enables the dumping on the Java heap to a file in The existing Listing by utilizing the heap profiler (HPROF) each time a java.lang.OutOfMemoryError exception is thrown.
-Xmn268435456 Rather than the -Xmn option to established each the Preliminary and maximum dimension in the heap to the young technology, You should utilize -XX:NewSize to established the initial size and -XX:MaxNewSize to set the utmost dimension.
Hugepagesize: 2048 kB If your output exhibits the three "Substantial" variables, then your process can assistance huge web page memory but it really really should be configured.
You can utilize one argument file, including myargumentfile in the next illustration, to hold all essential java arguments:
Specifies the name of the class to get released. Command-line entries pursuing classname are definitely the arguments for the most crucial approach.