java btrace程序监控方法运行时间 call tree

阅读更多

在项目中,开发阶段监控程序可以使用断点完成调试,对于线上的项目,要监控时候:

1.日志分析,

2.JConsole工具

3.Btrace跟踪和监控线程

 

安装Btrace:在windows环境下,可以直接利用jdk自带的jvisualvm工具来 安装Btrace插件,具体操作如下:

1.进入jdk安装目录,进入bin目录,找到jvisualvm.exe ,打开之后,在工具栏——>工具——>插件   ,搜索插件BTrace Workbench,然后安装

2.启动你程序所在的Tomcat,在jvisualvm.exe 窗口你会发现有个Tomcat的菜单图标,右键——>选择Trace application

3.如果想监控程序执行时间,复制如下代码到Btrace窗体内

package my.app.btrace;

import static com.sun.btrace.BTraceUtils.*;

import com.sun.btrace.annotations.*;

@BTrace

public class TraceProductManageImpl {

 @OnMethod(clazz = "/com.odianyun.+business.+/", method = "/.+/", location = @Location(Kind.RETURN)) 

 public static void traceExecute(@ProbeClassName String name,@ProbeMethodName String   method,@Duration long time){

 long durationTime = time/1000000;

 if(durationTime > 0){

 String output = strcat(name,".");

 output = strcat(output,method);

 output = strcat(output,"#");

 output = strcat(output,str(probeLine()));

 output = strcat(output,">>");

 output = strcat(output,str(durationTime));

 output = strcat(output,">>ThreadId:");

 output = strcat(output,str(threadId(currentThread())));

 println(output);

 } 

 

}

 

 

如果想监控程序的参数,运行call tree,换成以下代码即可:

ackage my.app.btrace;

import static com.sun.btrace.BTraceUtils.println;

import static com.sun.btrace.BTraceUtils.size;

import static com.sun.btrace.BTraceUtils.str;

import static com.sun.btrace.BTraceUtils.strcat;

import java.util.List;

import com.sun.btrace.annotations.BTrace;

import com.sun.btrace.annotations.Kind;

import com.sun.btrace.annotations.Location;

import com.sun.btrace.annotations.OnMethod;

import com.sun.btrace.annotations.ProbeClassName;

import com.sun.btrace.annotations.ProbeMethodName;

import com.sun.btrace.annotations.Return;

import com.sun.btrace.annotations.Self;

@BTrace

/**

* 获取程序参数

* @author Michael

*/

public class TraceProductManageParam {

 

@OnMethod(clazz = "com.odianyun.frontier.guide.business.read.manage.impl.PromotionManageImpl", method = "getMerchantProductCurrentPromotionPriceBatch", location = @Location(Kind.RETURN))

public static void traceExecute(@ProbeClassName String name,@ProbeMethodName String method,@Self Object self, List mpIds, Long companyId, @Return List ret){

String output = strcat(name,".");

output = strcat(output,method);

output = strcat(output,">inputItems:");

output = strcat(output, str(mpIds));

output = strcat(output,">outputSize:");

output = strcat(output, str(size(ret)));

println(output);

}

 

}

 

 

 

你可能感兴趣的:(java,vm,监控)