Indicate use of -XX:+UseCompressedOops for small 64-bit JVMs (as mentioned ...

Mark Craig

19.37.2011 42bf3f9214388a1e82ce89bfcebaf3bc118e3393

Indicate use of -XX:+UseCompressedOops for small 64-bit JVMs (as mentioned on Ludo's blog, http://ludopoitou.wordpress.com/2011/12/16/an-important-tuning-flag-for-opendj-with-64bit-jvm/)

 opendj3/src/main/docbkx/admin-guide/chap-tuning.xml

@@ -305,6 +305,15 @@
      off when everything is running smoothly.</para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><option>-XX:+UseCompressedOops</option></term>
     <listitem>
      <para>Java object pointers normally have the same size as native machine
      pointers. If you run a small, but 64-bit JVM, then compressed object
      pointers can save space. Set this option when you have a 64-bit JVM,
      <option>-Xmx</option> less than 32 GB, and Java SE 6u23 or later.</para>
     </listitem>
    </varlistentry>
   </variablelist>
  </section>