Sets the Original survivor Area ratio employed by the throughput rubbish collector (which can be enabled with the -XX:+UseParallelGC and/or -XX:+UseParallelOldGC options). Adaptive sizing is enabled by default Together with the throughput garbage collector by using the -XX:+UseParallelGC and -XX:+UseParallelOldGC selections, as well as the survivor Room is resized based on the software habits, starting with the First value.
This helps to identify the flags that need to be carried out. The automatic tests framework can skip People flags that don’t have values and aren’t implemented.
Specifies the title with the Original module to take care of and, if it isn’t specified with the module, then specifies the identify with the mainclass to execute. Applied only Together with the -m or --module solution. See Standard Choices for Java.
Utilize a degree of debug for the most applicable information and facts, or perhaps a amount of trace for all of what was logged for PrintTenuringDistribution.
Sets the quantity of threads utilized for concurrent GC. Sets threads to about one/4 of the quantity of parallel garbage selection threads. The default value depends on the quantity of CPUs available to the JVM.
hprof in which pid could be the identifier of the process that caused the mistake. The subsequent example displays ways to established the default file explicitly (%p signifies The existing system identifier):
For your flags that don’t contain the range specified, the values aren’t exhibited in the print out. Such as,:
Can be utilized anywhere on the command line, including in an argument file, to forestall further @filename expansion. This feature stops increasing @argfiles right after the choice.
The goal dimensions of your information isn’t certain to be actual, it’s just an approximate worth. Information are rotated by hop over to these guys default with as much as 5 rotated information of goal size 20 MB, unless configured otherwise. Specifying filecount=0 implies that the log file shouldn’t be rotated. There’s a risk with the pre-present log file getting overwritten.
log command. Because the diagnostic instructions are instantly top article exposed as MBeans, You can utilize JMX to vary logging configuration at operate time.
Allows tracing of courses as they’re unloaded. By default, this option is disabled and classes aren’t traced.
The -enableassertions (-ea) selection applies to all course loaders and also to technique classes (which don’t have a category loader). There’s one particular exception to this rule: If the choice is provided with no arguments, then it doesn’t apply to procedure classes. This causes it to be simple to enable assertions in all lessons aside from process courses. The -enablesystemassertions selection presents a separate switch to allow assertions in all program lessons.
Specifies the textual content file that contains important link the names of the class documents to retail store in the class facts sharing (CDS) archive. This file is made up of the entire title of 1 class file for each line, except slashes (/) substitute dots (.
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