Displays Variation facts and then exits. This option is comparable to the -showversion choice except the latter doesn’t instruct the JVM to exit just after exhibiting Model details.
Allows using the occupancy benefit as the sole criterion for initiating the CMS collector. By default, this selection is disabled as well as other standards may be applied.
Sets the volume of threads used for concurrent GC. Sets threads to approximately one/four of the quantity of parallel rubbish assortment threads. The default value relies on the amount of CPUs available to the JVM.
Sets the prefetch instruction to prefetch forward on the allocation pointer. Only the Java HotSpot Server VM supports this feature. Probable values are from 0 to three. The actual instructions behind the values depend upon the platform. By default, the prefetch instruction is about to 0:
Autotunes RTM locking according to the abort ratio. This ratio is specified by the -XX:RTMAbortRatio possibility. If the number of aborted transactions exceeds the abort ratio, then the tactic that contains the lock is deoptimized and recompiled with all locks as ordinary locks. This option is disabled by default. The -XX:+UseRTMLocking selection have to be enabled.
Reveals the splash display With all the picture specified by imgname. HiDPI scaled pictures are Home Page routinely supported and used if available.
Append the letter k or K to point kilobytes, m or M to point megabytes, or g or G to point gigabytes. By default, the scale is set to 0, that means that the JVM chooses the dimensions for large pages quickly. See Huge Pages.
Permits touching of each webpage over the Java heap during JVM initialization. This gets all pages into memory just before coming into the principle() method.
Sets the Room (in bytes) allotted for the permanent era that triggers a garbage assortment if it’s exceeded. This feature was deprecated in JDK eight and superseded through the -XX:MetaspaceSize choice.
Specifies the most sizing (in bytes) of the information chunks in a very recording. Append k or K, to specify the dimensions in KB, or m or M to specify the scale in MB, or g or G to specify the size in GB. sites By default, the utmost measurement of data chunks is about to twelve MB.
Logs all messages by using the infolevel to stdout with uptime, concentrations, and tags decorations. That is such as employing:
Plan will exit. The flag -XX:+PrintFlagsRanges prints the array of every one of the flags. This flag allows automated testing with the flags because of the values supplied by the ranges. For the flags which have read more the ranges specified, the sort, name, and the actual vary is printed from the output.
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That is a commercial attribute that requires you to also specify the -XX:+UnlockCommercialFeatures alternative. This can be also an experimental feature; it may alter in long run releases.