Sets the action size (in bytes) for sequential prefetch Guidelines. Append the letter k or K to indicate kilobytes, m or M to point megabytes, g or G to point gigabytes. By default, the action dimension is ready to sixteen bytes:
Enables the usage of the occupancy benefit as the sole criterion for initiating the CMS collector. By default, this feature is disabled as well as other requirements could possibly be used.
Logs messages tagged with each gc and ref tags, utilizing the debug amount to stdout, with default decorations. Messages tagged only with among the two tags won’t be logged.
Permits invoking of concurrent GC by utilizing the Technique.gc() ask for and unloading of courses throughout the concurrent GC cycle. This feature is disabled by default and might be enabled only together with the -XX:+UseConcMarkSweepGC possibility.
The argument file must have only ASCII characters or people in program default encoding that’s ASCII pleasant, like UTF-8.
Sets the amount of cache strains to load following the final item allocation by utilizing the prefetch Recommendations generated in compiled code. The default value is one if the final allotted item was an occasion, and three if it was an array.
Identifies String objects achieving the required age which can be thought of candidates for deduplication. An item's age is really a measure of how again and again it's survived garbage assortment. This is sometimes often called tenuring. See the -XX:+PrintTenuringDistribution selection.
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Specifies the textual content file which contains the names of The category information to shop in the class data sharing (CDS) archive. This file is made up of the entire name of 1 course file for each line, besides slashes (/) replace dots (.
Turns off all logging and clears all configuration of your logging framework including the default configuration helpful site for warnings and errors.
Logs all messages by utilizing the infolevel to stdout with uptime, ranges, and tags decorations. This can be equivalent to using:
The default benefit is chosen at operate time according to the process configuration. For server deployments, the choices -XX:InitialHeapSize and -XX:MaxHeapSize in many cases are set to the exact same benefit.
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This feature provides a limit of two GB; usually, an error is generated. The most code cache dimensions shouldn’t be less than the First code cache measurement; see the option -XX:InitialCodeCacheSize. This option is similar to -Xmaxjitcodesize.