NAME
gc-analyze - Analyze Garbage Collector (GC) memory dumps
SYNOPSIS
gc-analyze [\s-1OPTION\s0] ... [file]
DESCRIPTION
gc-analyze prints an analysis of a \s-1GC\s0 memory dump to
standard out.
The memory dumps may be created by calling
CWgnu.gcj.util.GCInfo.enumerate(String namePrefix) from java
code. A memory dump will be created on an out of memory condition if
CWgnu.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
"--verbose"
"-v"
Verbose output.
"-p
Prefix added to the names of the nm and readelf commands.
"-d
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
COPYRIGHT
Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
Permission is granted to copy, distribute and/or modify this document
under the terms of the \s-1GNU\s0 Free Documentation License, Version 1.2 or
any later version published by the Free Software Foundation; with the
Invariant Sections being “\s-1GNU\s0 General Public License”, 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 \s-1FSF\s0's Front-Cover Text is:
A GNU Manual
(b) The \s-1FSF\s0'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.
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