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  1. JDK
  2. JDK-6951686

Using large pages on Linux prevents zero based compressed oops

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    • b02
    • x86
    • linux_2.6

        > java -d64 -XX:+UseCompressedOops -XX:+UnlockDiagnosticVMOptions -XX:+PrintCompressedOopsMode -Xmx26g

        heap address: 0x000000017ac00000, zero based Compressed Oops


        > java -d64 -XX:+UseLargePages -XX:+UseCompressedOops -XX:+UnlockDiagnosticVMOptions -XX:+PrintCompressedOopsMode -Xmx26g

        heap address: 0x00002aaaae400000, Compressed Oops with base: 0x00002aaaae3ff000

              kvn Vladimir Kozlov
              kvn Vladimir Kozlov
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