Sets the quantity of cache lines to load once the past item allocation by utilizing the prefetch Directions generated in compiled code. The default worth is 1 if the final allocated item was an occasion, and 3 if it had been an array.
Permits tracing of constant pool resolutions. By default, this selection is disabled and continual pool resolutions aren’t traced.
ceil(double a) Returns the smallest (closest to negative infinity) double value that is larger than or equivalent to the argument and is equivalent to your mathematical integer.
Specifies the delay involving the Java application launch time and the beginning of your recording. Append s to specify enough time in seconds, m for minutes, h for hours, or d for days (by way of example, specifying 10m usually means 10 minutes). By default, there’s no hold off, which parameter is about to 0.
Enables the usage of significant website page memory. By default, this option is disabled and enormous page memory isn’t applied.
Sets the file to which verbose GC functions details should be redirected for logging. The information prepared to this file is analogous to your output of -verbose:gc with the time elapsed considering that the 1st GC event preceding Each individual logged function. The -Xloggc choice overrides -verbose:gc if each are supplied While using the similar java command.
Allows logging of compilation exercise to some file named hotspot.log in The present Performing Listing. You'll be able to specify a distinct log file path internet and identify utilizing the -XX:LogFile choice.
In the event the argument is infinite, then the result is surely an infinity Together with the same indication as the argument. If your argument is zero, then the result is usually a zero While using the exact sign given that the argument. The computed result should be inside of one ulp of the precise final result.
Specifies the textual content file that contains the names of The category data files to retail outlet in The category data sharing (CDS) archive. This file incorporates see page the complete identify of 1 course file for each line, apart from slashes (/) replace dots (.
Allows installation of signal handlers by the applying. By default, this feature is disabled and the applying isn’t permitted to setup signal handlers.
The subsequent examples demonstrate tips on how to established you can try these out the most authorized size of allocated memory to 80 MB making use of numerous units:
Specifies the identify in the initial module to solve and, if it isn’t specified by the module, then specifies the name in the mainclass to execute. Made use of only With all the -m or --module possibility. See Conventional Choices for Java.
Specifies a command to perform on a technique. For example, to exclude the indexOf() method of the String course from being compiled, use the following:
This helps to identify the flags that must be executed. The automatic screening framework can skip All those flags that don’t have values and aren’t implemented.