a86c63ca
 Hu Chunming
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'\" t
.\" Copyright (c) 2008, 2013, Oracle and/or its affiliates. All rights reserved.
.\" Arch: generic
.\" Software: JDK 8
.\" Date: 21 November 2013
.\" SectDesc: Java Troubleshooting, Profiling, Monitoring and Management Tools
.\" Title: jvisualvm.1
.\"
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.TH jvisualvm 1 "21 November 2013" "JDK 8" "Java Troubleshooting, Profiling, Monitoring and Management Tools"
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.SH NAME
jvisualvm \- Visually monitors, troubleshoots, and profiles Java applications\&.
.SH SYNOPSIS
.sp
.nf
\fBjvisualvm\fR [ \fIoptions\fR ]
.fi
.sp
.TP
\fIoptions\fR
The command-line options\&. See Options\&.
.SH DESCRIPTION
Java VisualVM is an intuitive graphical user interface that provides detailed information about Java technology-based applications (Java applications) while they are running on a specified Java Virtual Machine (JVM)\&. The name Java VisualVM comes from the fact that Java VisualVM provides information about the JVM software visually\&.
.PP
Java VisualVM combines several monitoring, troubleshooting, and profiling utilities into a single tool\&. For example, most of the functionality offered by the standalone tools \f3jmap\fR, \f3jinfo\fR, \f3jstat,\fR and \f3jstack\fR were integrated into Java VisualVM\&. Other functionality, such as some that offered by the \f3jconsole\fR command, can be added as optional plug-ins\&.
.PP
Java VisualVM is useful to Java application developers to troubleshoot applications and to monitor and improve the applications\&' performance\&. Java VisualVM enables developers to generate and analyze heap dumps, track down memory leaks, perform and monitor garbage collection, and perform lightweight memory and CPU profiling\&. You can expand the Java VisualVM functionality with plug-ins\&. For example, most of the functionality of the \f3jconsole\fR command is available through the \fIMBeans\fR Tab and JConsole Plug-in Wrapper plug-ins\&. You can choose from a catalog of standard Java VisualVM plug-ins by selecting \fITools\fR and then \fIPlugins\fR in the Java VisualVM menus\&.
.PP
Start Java VisualVM with the following command:
.sp
.nf
\f3% jvisualvm <options>\fP
.fi
.nf
\f3\fP
.fi
.sp
.SH OPTIONS
The following option is available when you launch Java VisualVM
.TP
-J\fIjvm_option\fR
.br
Pass this \f3jvm_option\fR to the JVM software
.SH SEE\ ALSO
.TP 0.2i
\(bu
Java VisualVM developer\(cqs site http://visualvm\&.java\&.net/
.TP 0.2i
\(bu
Java VisualVM in Java SE documentation http://docs\&.oracle\&.com/javase/8/docs/technotes/guides/visualvm/index\&.html
.RE
.br
'pl 8.5i
'bp
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