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gc-analyze

man page of gc-analyze

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

NAME

gc-analyze - Analyze Garbage Collector (GC) memory dumps
SYNOPSIS
gc-analyze [OPTION] ... [file]
DESCRIPTION
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

--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

COPYRIGHT

Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2010 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. GC-ANALYZE(1)
 
 
 

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