That is a commercial function that needs you to also specify the -XX:+UnlockCommercialFeatures possibility as follows:
Logs messages tagged with at least the gc and meta tags working with thetrace amount on the file metatrace.txt but turns off all messages tagged with class.
Enables tracing of frequent pool resolutions. By default, this feature is disabled and constant pool resolutions aren’t traced.
Enables the usage of the parallel scavenge rubbish collector (also known as the throughput collector) to improve the functionality of your respective software by leveraging several processors.
Home windows: The subsequent illustration displays how the -XX:OnError alternative can be used to run the userdump.exe utility to acquire a crash dump in the event of an irrecoverable mistake (the %p designates the current approach).
Sets the size (in bytes) in the prefetch distance for object allocation. Memory going to be penned with the worth of latest objects is prefetched nearly this length ranging from the handle of the last allocated item. Each individual Java thread has its own allocation position.
Specifies the textual content file which contains the names of The category files to retailer in The category knowledge sharing (CDS) archive. This file is made up of the entire name of one class file for every line, other than slashes (/) replace dots (.
Because the alignment price improves, the unused Area concerning objects also increases. Due to this fact, you may not comprehend any Advantages from working with compressed ideas with significant Java heap sizes.
Enables the usage of the serial rubbish collector. This is generally your best option for little and easy programs that don’t require any Exclusive functionality from garbage selection.
hprof exactly where pid could be the identifier of the process that triggered the error. The following illustration shows tips on how to set the default file explicitly (%p represents the current course of action identifier):
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Specifies the RTM abort Check This Out ratio is specified as a percentage (%) of all executed RTM transactions. If many aborted transactions will become bigger than this ratio, then the compiled code is deoptimized.
Observe that within the previous logging, PrintReferenceGC experienced an effect only if PrintGCDetails was also enabled.
If the heap is compact, this aspect can be used to stop apps from working for extensive periods of time with little or no development. To disable this feature, specify the choice -XX:-UseGCOverheadLimit.