btrace拓展工具-java应用性能诊断优化利器


Btrace是一个实时监控工具,可以无需修改应用代码(事实上它修改了字节码),来达到不可告人的秘密!这是性能调优和诊断的利器!

它可以获取应用程序代码的执行时间,他可以让你无需修改代码,帮你做时间的打点。它还可以做的有很多多!

但是,你需要编写btrace脚本,它是一个java文件。在Eclipse中编写java类很简单,在linux上,vm不熟悉的可能就会比较痛苦了,并且脚本可复制性很强。

因此,我对btrace做了一个封装和拓展,你无须再编写java脚本,只需要敲几个命令,便可以实现你想要的功能!

为了减少重复工作的增加,拓展工具提供了以下特色功能:

1) 命令行交互式方式

2) 封装了常见的方法监控命令,无需再编写btrace脚本

3) 集成了一些典型的监控对象,如druid连接池,sql监控,isearch等

4) 未改变原有的btrace功能,仍然支持btrace脚本方式

软件获取和运行

 

github: https://github.com/xxzmxx/btrace_extend/

svn co 到linux/windows某个位置,进入bin目录

Linux: chmod +x btrace (赋予btrace 可执行权限)

windows无需操作。

 

命令行下,执行命令

./btrace [pid]

【pid可以通过jps获取】

 

进入交互界面

 

提供命令行交互

 

原有的btrace是通过形如 btrace pid xx.java文件。通过本次改造,我们提供了命令行交互方式,增加用户体验:

输入help,获取可用的命令

btrace>help
-------------------------------------------------------------------------------------------------------------------------------
| CommandName  CommandArgs                       CommandUsage
| time         {clazzname methodname}[interval]  collect response time ,and it can be executed by a interval set(s),;Example
|                                                time java.lang.Thread start  2
|
| aggre        {clazzname methodname}[interval]  aggregation response time,it's a well fuction;Example
|                                                aggre java.lang.Thread start  2
|
| call         {clazzname methodname}[interval]  when method called,it prints;Example
|                                                call java.lang.Thread start  2
|
| jstack       {clazzname methodname}            when method called,it prints stackTrace;Example:
|                                                jstack java.lang.Thread start  2
|
| file         {filePath}                        based on old btrace funtion,it can be run from a java file.Example:
|                                                file Test.java
|
| druid                                          Monitor druid dataSource?Example
|                                                druid
|
| isearch                                        Monitor Isearch execute time ;Example
|                                                isearch
|
| sql                                            Monitor sql execute time ;Example
|                                                sql
|
| sqlde                                          Monitor sql execute time and print Sql ;Example
|                                                sqlde
|
| quit                                           exit btrace
|                                                quit
| -------------------------------------------------------------------------------------------------------------------------------

btrace运行操作

btrace在运行监控时,控制台是阻塞输入的。只有通过Ctrl+c,来向应用发送信号,btrace会有3个选项供选择:

btrace>time java.lang.Thread start
StartMonitor [java.lang.Thread.start()] time(ms)
Please enter your option:
         1 . exit
         2 . send an event
         3 . send a named event

1代表退出监控,回到btrace交互模式;

2代表发送一个事件,会触发btrace去打印监控信息到控制台。如aggre 、file、druid、isearch、sql、sqlde命令均可以通过该方式,打印出监控信息

3发送一个指定名称的事件,暂时未支持

命令演示

本次拓展,共支持9个命令功能。

1)time

usage:time clazzname method [interval]

time功能为获取指定类的方法的响应时间。并且它包含一个可选参数,即可以提供。

例子:我们想监控类com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp 中方法storeProductToDraftOrNormal的耗时情况。则输入命令

btrace>time com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp storeProductToDraftOrNormal
StartMonitor [com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal()] time(ms)

btrace就开始收集这个方法调用的时间,如果这个方法被调用,就会打印出时间信息。

btrace>time com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp storeProductToDraftOrNormal
StartMonitor [com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal()] time(ms)
[Clazz.method]          Time(ms)
com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal   19
[Clazz.method]          Time(ms)
com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal   7
[Clazz.method]          Time(ms)
com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal   7
[Clazz.method]          Time(ms)
com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal   7
[Clazz.method]          Time(ms)
com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal   7
[Clazz.method]          Time(ms)
com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal   7
[Clazz.method]          Time(ms)
com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal   8
[Clazz.method]          Time(ms)
com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal   7
[Clazz.method]          Time(ms)
com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal   7
[Clazz.method]          Time(ms)
com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal   8

但是如果我的时间调用次数很多,就会出现残酷的刷屏现象,我希望每隔2s进行采样。输入如下命令:

 

btrace>time com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp storeProductToDraftOrNormal  2
StartMonitor [com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal()] time(ms)
[Clazz.method]                                                                               AvgTime(ms)     Count(total)
com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal  6               3
[Clazz.method]                                                                               AvgTime(ms)     Count(total)
com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal  7               13
[Clazz.method]                                                                               AvgTime(ms)     Count(total)
com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal  7               20
[Clazz.method]                                                                               AvgTime(ms)     Count(total)
com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal  7               20

btrace会每隔2s收集一次信息,并对每次的信息做统计,包括均值和调用次数总计。

2)aggre

usage:time clazzname method [interval]

如果我们觉得time命令还是不够满足我需求,我希望能够提供一些更详细的值,比如在采集的这段时间,rt的最大值,最小值,均值,以及分布,还有调用总数。此时可以通过聚合命令来完成

例子:我们想监控类com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp 中方法storeProductToDraftOrNormal的耗时,并提供聚合报告。则输入命令

btrace>aggre com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp storeProductToDraftOrNormal
StartMonitor [com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal()] By Aggregation time(ms)

通过触发Ctrl+c,选择选项2,获取输出结果:

 

btrace>aggre com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp storeProductToDraftOrNormal
StartMonitor [com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal()] By Aggregation time(ms)
Please enter your option:
         1 . exit
         2 . send an event
         3 . send a named event
2
QUANTIZE
   com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp
                   value  ------------- Distribution ------------- count
                       2  |                                          0
                       4  |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@      45
                       8  |@@@                                       4
                      16  |                                          1
                      32  |                                          0
AVERAGE
   com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp                 7
MAXIMUM
   com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp                19
SUM
   com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp               361
COUNT
   com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp                50

这里提供了针对时间的聚合信息,以ms为单位。并提供了时间分布的功能,可以清晰的看出该模块时间是否稳定。

3)call 

这个命令和time命令用法基本相同,请参考time命令

4)jstack

usage:jstack clazzname method

当应用中存在调用clazzname的method时,会打印出调用堆栈,这个方便我们查找问题。

例如想监控com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp 中方法storeProductToDraftOrNormal是否被调用,如果调用,希望看到它的堆栈。

btrace>jstack com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp storeProductToDraftOrNormal
StartMonitor [com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal()]  && Print java stack info!
-------------------------------stack info--------------------------
com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal(WholesaleProductHelp.java)
com.alibaba.intl.ae.module.wsproduct.persistent.AeProductForMysqlPersistent.persistent(AeProductForMysqlPersistent.java: 32 )
com.alibaba.intl.ae.morina.core.actionhandler.BasePublishActionHandler.invoke(BasePublishActionHandler.java: 69 )
com.alibaba.intl.ae.morina.core.skeleton.publish.impl.ActionHandlerInterceptorChainInvocation.invoke(ActionHandlerInterceptorChainInvocation.java: 67 )
com.alibaba.intl.ae.module.wsproduct.interceptor.AeProductDetailInterceptor.intercept(AeProductDetailInterceptor.java: 40 )
com.alibaba.intl.ae.morina.core.skeleton.publish.impl.ActionHandlerInterceptorChainInvocation.invoke(ActionHandlerInterceptorChainInvocation.java: 63 )
com.alibaba.intl.ae.module.wsproduct.interceptor.AeProductCatPropertyInterceptor.intercept(AeProductCatPropertyInterceptor.java: 101 )
com.alibaba.intl.ae.morina.core.skeleton.publish.impl.ActionHandlerInterceptorChainInvocation.invoke(ActionHandlerInterceptorChainInvocation.java: 63 )
com.alibaba.intl.ae.module.wsproduct.interceptor.AeProductPostCountCheckInterceptor.intercept(AeProductPostCountCheckInterceptor.java: 51 )
com.alibaba.intl.ae.morina.core.skeleton.publish.impl.ActionHandlerInterceptorChainInvocation.invoke(ActionHandlerInterceptorChainInvocation.java: 63 )
com.alibaba.intl.ae.module.wsproduct.interceptor.AeProductPersonAuthInterceptor.intercept(AeProductPersonAuthInterceptor.java: 45 )
com.alibaba.intl.ae.morina.core.skeleton.publish.impl.ActionHandlerInterceptorChainInvocation.invoke(ActionHandlerInterceptorChainInvocation.java: 63 )
com.alibaba.intl.ae.module.wsproduct.interceptor.AeProductPunishInterceptor.intercept(AeProductPunishInterceptor.java: 32 )
com.alibaba.intl.ae.morina.core.skeleton.publish.impl.ActionHandlerInterceptorChainInvocation.invoke(ActionHandlerInterceptorChainInvocation.java: 63 )
com.alibaba.intl.ae.module.wsproduct.interceptor.AutoValidateProductInterceptor.intercept(AutoValidateProductInterceptor.java: 36 )
com.alibaba.intl.ae.morina.core.skeleton.publish.impl.ActionHandlerInterceptorChainInvocation.invoke(ActionHandlerInterceptorChainInvocation.java: 63 )
com.alibaba.intl.ae.module.wsproduct.interceptor.MemberInfoInitializationInterceptor.intercept(MemberInfoInitializationInterceptor.java: 73 )
com.alibaba.intl.ae.morina.core.skeleton.publish.impl.ActionHandlerInterceptorChainInvocation.invoke(ActionHandlerInterceptorChainInvocation.java: 63 )
com.alibaba.intl.ae.morina.core.skeleton.publish.impl.AeProductPublishController.invoke(AeProductPublishController.java: 50 )
com.alibaba.intl.ae.morina.core.skeleton.publish.impl.AeProductPublishController.invoke(AeProductPublishController.java: 25 )
com.alibaba.intl.ae.morina.core.portal.InvocationControllerAutowirePostProcessor$ 1 .intercept(InvocationControllerAutowirePostProcessor.java: 44 )
com.alibaba.intl.ae.morina.core.portal.InvocationControllerPortal$$EnhancerByCGLIB$$276335c.invoke(<generated>)
com.alibaba.intl.ae.module.wsproduct.service.AeProductPublishRemoteServiceImpl.postAeProduct(AeProductPublishRemoteServiceImpl.java: 36 )
sun.reflect.GeneratedMethodAccessor380.invoke(Unknown Source)

5)file

这个命令其实是为了保留btrace原始的监控方式。所以如果你编写了btrace 脚本,那么直接使用:

file script.java

6)druid

该命令没有参数,直接输入druid即可。druid是一个数据库连接池。在性能测试时,时常要监控连接池的饱满情况,以及是否存在性能瓶颈,那么监控连接池的活动情况是很直接的方法。

例子如下:

btrace>druid
StartMonitor druid Connection DataSource
Please enter your option:
         1 . exit
         2 . send an event
         3 . send a named event
2
------------------------------JDBC-URL-------------------------------    avalibleConn  activeConn  totalConn  Allconn  useage%
dbc:mysql: //10.20.147.144:3306/ws_product_press                          4                 0            4          20      20.0
dbc:oracle:thin:@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST= 10.20 . 149 .    8                  2            10           20       50.0
dbc:mysql: //10.20.147.144:3306/ws_sku_press                              6                 0            6          50      12.0
dbc:alibaba:oracle:thin:@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST= 10     7                 2             9           10       90.0

7)sql

该命令没有参数,直接输入sql即可。如果你的应用包含数据库操作,且使用ibatis框架,那么它会列出所有sql的操作时间,但是不显示详细sql,只显示ibatis-id。如果要显示详细sql,使用sqlde命令获取

btrace>sql
StartMonitor Ibtis Sql
Please enter your option:
         1 . exit
         2 . send an event
         3 . send a named event
2
---------------------------------------------
Count
                  FREIGHT_TEMPLATE.selectByPrimaryKey              1290
           WS_PRODUCT_DETAIL_DRAFT.selectByPrimaryKey              1290
           WS_PRODUCT_DETAIL_DRAFT.deleteByPrimaryKey              1290
Min
                  FREIGHT_TEMPLATE.selectByPrimaryKey                 0
           WS_PRODUCT_DETAIL_DRAFT.selectByPrimaryKey                 0
           WS_PRODUCT_DETAIL_DRAFT.deleteByPrimaryKey                 0
Max
           WS_PRODUCT_DETAIL_DRAFT.selectByPrimaryKey                14
           WS_PRODUCT_DETAIL_DRAFT.deleteByPrimaryKey                14
                  FREIGHT_TEMPLATE.selectByPrimaryKey                15
Average
                  FREIGHT_TEMPLATE.selectByPrimaryKey                 0
           WS_PRODUCT_DETAIL_DRAFT.selectByPrimaryKey                 0
           WS_PRODUCT_DETAIL_DRAFT.deleteByPrimaryKey                 0
Sum
                  FREIGHT_TEMPLATE.selectByPrimaryKey               144
           WS_PRODUCT_DETAIL_DRAFT.deleteByPrimaryKey               161
           WS_PRODUCT_DETAIL_DRAFT.selectByPrimaryKey               186
Histogram
    WS_CATE_CONSULT_CFGT.selectOldCategoryAttriNumber
                   value  ------------- Distribution ------------- count
                      - 1  |                                          0
                       0  |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@             469
                       1  |@@@@@@@                                   127
                       2  |@                                         28
                       4  |                                          12
                       8  |                                          7
                      16  |                                          2
                      32  |                                          0
      WHOLESALE_STORE.findWholesaleStoreDOByCompanyId
                   value  ------------- Distribution ------------- count
                      - 1  |                                          0
                       0  |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@      587
                       1  |@@                                        37
                       2  |                                          8
                       4  |                                          6
                       8  |                                          6
                      16  |                                          1
                      32  |                                          0
Global Count
             19150

ps.上述内容过于繁多,只选择了部分。

8)sqlde

该命令没有参数,直接输入sqlde即可。该命令不但会聚合所有sql的rt,也会打印sql详情。不过这个sql的排版目前做的还不是很好。会有些乱。建议还是使用sql命令来看。sql少的话,使用sqlde命令。 

作者:gzh0222 发表于2013-8-3 11:41:41 原文链接
阅读:0 评论:0 查看评论

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