java project help - An Overview

-XX:SharedArchiveConfigFile=shared_config_file The option is used to specify further shared facts additional to your archive file. In JDK 9, it supports strings and symbols. The string data and symbol details should be created because of the jcmd tool attaching to your managing JVM process. See jcmd.

Allows invoking of concurrent GC by using the Procedure.gc() ask for and unloading of courses over the concurrent GC cycle. This feature is disabled by default and might be enabled only along with the -XX:+UseConcMarkSweepGC selection.

This helps to identify the flags that should be executed. The automatic screening framework can skip People flags that don’t have values and aren’t executed.

Logs messages tagged with no less than the gc and meta tags employing thetrace amount towards the file metatrace.txt but turns off all messages tagged with class.

The default worth is selected at operate time based upon the method configuration. For server deployments, the choices -XX:InitialHeapSize and -XX:MaxHeapSize are frequently set to the exact same value.

The procedure can be correctly utilized by the customer, but the data must be up to date from the database by way of SQL command set, so it might be described as a back again fall, which can more be enhanced.

Permits flushing from the code cache in advance of shutting down the compiler. This option is enabled by default. To disable flushing of the code cache ahead of shutting down the compiler, specify -XX:-UseCodeCacheFlushing.

.., the swap disables assertions in the specified bundle and any subpackages. In the event the argument is actually ..., then the switch disables assertions inside the unnamed package in The present Doing find more the job Listing. Together with the classname argument, the switch disables assertions in the desired course.

The Superior options aren’t encouraged for relaxed use. They're developer choices utilized for tuning distinct areas of the Java HotSpot Digital Device Procedure That always have precise system specifications and could demand privileged access to method configuration parameters.

Sets the phase webpage measurement (in bytes) for sequential prefetch instructions. Append the letter k or K to point kilobytes, m or M to point megabytes, g or G to point gigabytes. By default, the phase sizing is about to 16 bytes:

When running multiple JVM processes, AppCDS lessens the runtime footprint with memory sharing for read through-only metadata.

Can be employed anyplace around the command line, which include within an argument file, to stop more @filename growth. This selection stops growing @argfiles right after the go to this website choice.

-XX:CompileCommand=exclude,*.indexOf The commas and intervals are aliases for spaces, which makes it much easier to pass compiler commands via a shell. You can go arguments to -XX:CompileCommand using spaces as separators by enclosing the argument in quotation marks:

The choice may be used in testing to simulate an extended-jogging technique with all Digital memory mapped to physical memory. By default, this selection is disabled and all pages are fully commited as JVM heap Place fills.

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