The argument file will have to comprise only ASCII characters or figures in process default encoding that’s ASCII welcoming, for example UTF-8.
Unlocks the choices intended for diagnosing the JVM. By default, this option is disabled and diagnostic solutions aren’t offered.
Logs messages tagged with at the very least the gc and meta tags using thetrace stage for the file metatrace.txt but turns off all messages tagged with course.
log command. Because the diagnostic instructions are automatically uncovered as MBeans, You need to use JMX to vary logging configuration at operate time.
Logs messages tagged Along with the gc tag applying details stage to stdout. The default configuration for all other messages at amount warning is in influence.
When the -Xlogoption and very little else is specified within the command line, the default configuration is utilized. The default configuration logs all messages by using a degree that matches possibly the warning or mistake regardless of what tags the information is related to. The default configuration is such as entering the following about the command line:
Sets the ratio between eden Place size and survivor Place sizing. By default, this option is about to eight. The subsequent example exhibits tips on how to established the eden/survivor Place ratio to 4:
Linux only: Enables the usage of massive webpages that can dynamically mature or shrink. This option is disabled by default. It's possible you'll encounter effectiveness issues with transparent large pages since the OS moves other webpages close to to create large web pages; this feature is made readily available for experimentation.
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This helps to discover the flags that must be implemented. The automatic tests framework can skip All those flags that don’t have values and aren’t carried out.
-Xms6m For those who don’t established this option, then the Original dimensions is about given that the sum with the measurements allotted with the previous technology along with the younger technology. The First dimension with the heap with the youthful era is often established using the -Xmn possibility or even the -XX:NewSize alternative.
The argument data files also can consist of the primary course identify and all selections. If an argument file contains all of the options expected with the java command, then the command line could only be:
In this case, you must enclose the arguments in quotation marks, since in any other case the shell treats the semicolon as being a command stop. One example is, if you'd like to exclude just the indexOf(String) approach to the String class from becoming compiled, use the next:
This feature incorporates a Restrict of 2 GB; or else, that site an mistake is produced. The utmost code cache about his dimensions shouldn’t be fewer than the Preliminary code cache measurement; see the option -XX:InitialCodeCacheSize. This selection is equivalent to -Xmaxjitcodesize.