-XX:[+|-]HitachiAutoExplicitMemory (Automatic allocation function option of Explicit Memory Management function)

Format

-XX:+HitachiAutoExplicitMemory
Enable the automatic allocation function of the explicit memory management.
-XX:-HitachiAutoExplicitMemory
Disable the automatic allocation function of the explicit memory management.

Description

Specify whether to enable or disable the automatic allocation function of the Explicit memory block. When the function is enabled, irrespective of the 32-bit version or the 64-bit version, the required Explicit memory block is secured in advance when starting Java VM. Note that Java VM cannot be started in an environment in which continuous areas cannot be secured in the memory space when starting Java VM.

Note that if this option is enabled, the minimum size of the Explicit memory block is 16 kilobytes. If disabled, the minimum size of the Explicit memory block is 64 kilobytes.
Default value
  • -XX:-HitachiAutoExplicitMemory
Prerequisite options
  • -XX:+HitachiUseExplicitMemory
  • -XX:+HitachiExplicitMemoryAutoReclaim
  • -XX:-HitachiExplicitMemoryCompatibleToV8
Related option
  • -XX:HitachiAutoExplicitMemoryFile