src/share/vm/Xusage.txt

Mon, 12 Aug 2019 18:30:40 +0300

author
apetushkov
date
Mon, 12 Aug 2019 18:30:40 +0300
changeset 9858
b985cbb00e68
parent 0
f90c822e73f8
permissions
-rw-r--r--

8223147: JFR Backport
8199712: Flight Recorder
8203346: JFR: Inconsistent signature of jfr_add_string_constant
8195817: JFR.stop should require name of recording
8195818: JFR.start should increase autogenerated name by one
8195819: Remove recording=x from jcmd JFR.check output
8203921: JFR thread sampling is missing fixes from JDK-8194552
8203929: Limit amount of data for JFR.dump
8203664: JFR start failure after AppCDS archive created with JFR StartFlightRecording
8003209: JFR events for network utilization
8207392: [PPC64] Implement JFR profiling
8202835: jfr/event/os/TestSystemProcess.java fails on missing events
Summary: Backport JFR from JDK11. Initial integration
Reviewed-by: neugens

     1     -Xmixed           mixed mode execution (default)
     2     -Xint             interpreted mode execution only
     3     -Xbootclasspath:<directories and zip/jar files separated by ;>
     4                       set search path for bootstrap classes and resources
     5     -Xbootclasspath/a:<directories and zip/jar files separated by ;>
     6                       append to end of bootstrap class path
     7     -Xbootclasspath/p:<directories and zip/jar files separated by ;>
     8                       prepend in front of bootstrap class path
     9     -Xnoclassgc       disable class garbage collection
    10     -Xincgc           enable incremental garbage collection
    11     -Xloggc:<file>    log GC status to a file with time stamps
    12     -Xbatch           disable background compilation
    13     -Xms<size>        set initial Java heap size
    14     -Xmx<size>        set maximum Java heap size
    15     -Xss<size>        set java thread stack size
    16     -Xprof            output cpu profiling data
    17     -Xfuture          enable strictest checks, anticipating future default
    18     -Xrs              reduce use of OS signals by Java/VM (see documentation)
    19     -Xcheck:jni       perform additional checks for JNI functions
    20     -Xshare:off	      do not attempt to use shared class data
    21     -Xshare:auto      use shared class data if possible (default)
    22     -Xshare:on	      require using shared class data, otherwise fail.
    24 The -X options are non-standard and subject to change without notice.

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