NAME | SYNOPSIS | DESCRIPTION | OPTIONS | SEE ALSO | COPYRIGHT | COLOPHON

GC-ANALYZE(1)                        GNU                       GC-ANALYZE(1)

NAME         top

       gc-analyze - Analyze Garbage Collector (GC) memory dumps

SYNOPSIS         top

       gc-analyze [OPTION] ... [file]

DESCRIPTION         top

       gc-analyze prints an analysis of a GC memory dump to standard out.

       The memory dumps may be created by calling
       "gnu.gcj.util.GCInfo.enumerate(String namePrefix)" from java code.  A
       memory dump will be created on an out of memory condition if
       "gnu.gcj.util.GCInfo.setOOMDump(String namePrefix)" is called before
       the out of memory occurs.

       Running this program will create two files: TestDump001 and
       TestDump001.bytes.

               import gnu.gcj.util.*;
               import java.util.*;

               public class GCDumpTest
               {
                   static public void main(String args[])
                   {
                       ArrayList<String> l = new ArrayList<String>(1000);

                       for (int i = 1; i < 1500; i++) {
                           l.add("This is string #" + i);
                       }
                       GCInfo.enumerate("TestDump");
                   }
               }

       The memory dump may then be displayed by running:

               gc-analyze -v TestDump001

OPTIONS         top

       --verbose
       -v  Verbose output.

       -p tool-prefix
           Prefix added to the names of the nm and readelf commands.

       -d directory
           Directory that contains the executable and shared libraries used
           when the dump was generated.

       --help
           Print a help message, then exit.

       --version
           Print version information, then exit.

SEE ALSO         top


COPYRIGHT         top

       Copyright (c) 2001-2016 Free Software Foundation, Inc.

       Permission is granted to copy, distribute and/or modify this document
       under the terms of the GNU Free Documentation License, Version 1.3 or
       any later version published by the Free Software Foundation; with no
       Invariant Sections, the Front-Cover Texts being (a) (see below), and
       with the Back-Cover Texts being (b) (see below).  A copy of the
       license is included in the man page gfdl(7).

       (a) The FSF's Front-Cover Text is:

            A GNU Manual

       (b) The FSF's Back-Cover Text is:

            You have freedom to copy and modify this GNU Manual, like GNU
            software.  Copies published by the Free Software Foundation raise
            funds for GNU development.

COLOPHON         top

       This page is part of the gcc (GNU Compiler Collection) project.
       Information about the project can be found at ⟨http://gcc.gnu.org/⟩.
       If you have a bug report for this manual page, see 
       ⟨http://gcc.gnu.org/bugs/⟩.  This page was obtained from the tarball
       gcc-6.3.0.tar.gz fetched from 
       ⟨ftp://ftp.fu-berlin.de/unix/languages/gcc/releases/⟩ on 2017-04-25.
       If you discover any rendering problems in this HTML version of the
       page, or you believe there is a better or more up-to-date source for
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       in this COLOPHON (which is not part of the original manual page),
       send a mail to man-pages@man7.org

gcc-6.3.0                        2016-12-21                    GC-ANALYZE(1)