src/share/vm/Xusage.txt

rev 8932 : 8046148

*** 5,14 ****
--- 5,15 ----
      -Xbootclasspath/a:<directories and zip/jar files separated by ;>
                        append to end of bootstrap class path
      -Xbootclasspath/p:<directories and zip/jar files separated by ;>
                        prepend in front of bootstrap class path
      -Xnoclassgc       disable class garbage collection
+     -Xlog:<opts>      control JVM logging, use -Xlog:help for details
      -Xloggc:<file>    log GC status to a file with time stamps
      -Xbatch           disable background compilation
      -Xms<size>        set initial Java heap size
      -Xmx<size>        set maximum Java heap size
      -Xss<size>        set java thread stack size