Java性能检测及内存泄露检测（三）——JProfiler

jprofiler分析java应用程序性能

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1、测试环境

CentOS 5.5 final(64bit) + tomcat6.20 + OpenJDK1.6.24
jprofiler_linux_6_2_2.sh
jprofiler_windows_6_2_2.exe

2、Wndows客户端安装 略
3、将jprofiler_linux_6_2_2.sh上传到服务器，假设上传到/opt/jprofiler

cd /opt/jprofiler
chmod +x *.sh
./jprofiler_linux_6_2_2.sh -c
按照提示来安装，提示都很简单，不在多说。安装路径选择 /opt/jprofiler6
注意，这里的 -c 意思是用字符方式来安装，如果机器上没有 X 则加上该参数.

4、客户端连接配置

运行 JProfiler 。第一次打开会有向导，忽略它。
选择 Session->Integration Wizard->New Remote Integratation
选择 on a remote computer Linux x86/AMD 64;next
选择 JVM Vendor:sun Vsersion:1.6.0 Model:hotspot; 64 bit JVM 前打上够；next
选择 wait for a connection from the jprofiler GUI;next
输入remote address:10.0.0.19;next
输入Remote installation directory:/opt/jprofiler6;next
输入JProfiler port:默认8849
这里会列出需要在服务器端做的配置:
Integration type: [Generic application]
Selected JVM: Sun 1.6.0 (hotspot)
Startup mode: Wait for a connection from the JProfiler GUI

(1) Please insert

-agentpath:/opt/jprofiler/bin/linux-x64/libjprofilerti.so=port=8849

into the start command of your remote application right after the java command.

A remote session named Remote application on 10.0.0.147 will be created that connects to a running instance of the remote application that is started with the modified start command.

5、服务器端配置

修改系统环境配置文件 /etc/profile ,增加

JPROFILER_HOME=/opt/jprofiler4/bin/linux-x86
exportLD_LIBRARY_PATH=$LD_LIBRARY_PATH:$JPROFILER_HOME

修改TOMCAT启动文件catalina.sh，添加-agentpath:/opt/jprofiler/bin/linux-x64/libjprofilerti.so=port=8849 内容到CATALINA_OPTS中；
“-agentpath:/opt/jprofiler/bin/linux-x64/libjprofilerti.so=port=8849 ” 此内容由客户端软件生成

CATALINA_OPTS="$CATALINA_OPTS-Xms128m-Xmx128m$JPDA_OPTS-agentpath:/opt/jprofiler/bin/linux-x64/libjprofilerti.so=port=8849 "

7、Reboot Linux and startup Tomcat using startup.sh;

The log of tomcat which is $CATALINA_HOME/logs/catalina.out will show:

JProfiler>Protocolversion23
JProfiler>UsingJVMTI
JProfiler> 64-bitlibrary
JProfiler>Listeningonport:8849.
JProfiler>Nativelibraryinitialized
JProfiler>WaitingforaconnectionfromtheJProfilerGUI

8、启动客户端

点击jprofiler菜单 session>start center>Open Session
Available session configurations中列出了刚才配置的连接，选中使用就OK了！！

9、.当中断JProfiler连接时

The log of tomcat which is $CATALINA_HOME/logs/catalina.out will show:

JProfiler>Disconnected.Waitingforreconnection.
JProfiler>Listeningonport:8849.