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  • 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。 

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  • 原文地址:https://www.cnblogs.com/javawebsoa/p/3235424.html
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