How do I enable large page support for Java?

How do I enable large page support for Java?

 SOLUTION 已驗證 - 已更新 2015年六月24日22:32 - 

English 

環境

• Sun JDK
• OpenJDK
• IBM JDK
• JRockit JDK

問題

• How do I enable Java large page support?

決議

First, large pages must be enabled in the operating system:

• How do I enable large page support on Linux?
  • For RHEL 6, is also recommended to disable Transparent Huge Pages Do I need to configure hugepages for JBoss on RHEL 6 even though transparent hugepages in RHEL 6 are fully automatic?
• How do I enable large page support on Solaris?
• How do I enable large page support on Windows?

OpenJDK / Sun JDK

• Add the following JVM option:

  Raw

  -XX:+UseLargePages
  

• Set the large page size. For example:

  Raw

  -XX:LargePageSizeInBytes=4m
  

IBM JDK

• Add the following JVM option:

  Raw

  -Xlp
  

JRockit JDK

• Add the following JVM option:

  Raw

  -XXlargePages