小布老师LR系列培训视频- LoadRunner概述

一、loadrunner概述51Testing软件测试网ZV7I(iMw!~

第一讲：http://www.boobooke.com/v/bbk105951Testing软件测试网H*h"O+s0I ah\
内容：51Testing软件测试网I,Ps4ErY/l @r

1）     为什么要进行性能测试？

2）     性能测试的重要意义   “数据大集中”

3）     典型的企业信息系统

4）     性能测试的原理51Testing软件测试网/I~,?%e-L

5）     性能测试的类型

Component testing---Find the behavīor and performance of each tier.51Testing软件测试网1MT/['e6p5ZN'da?*u2N

Load testing---Find out weather the system can handle the expected load upon deployment under real world conditions.

Stress testing---Find the system’s breaking point.Apply testing that measure whether the system’s environment is properly configured to handle expected or potentially unexpected high transaction volumes.51Testing软件测试网'\'@H#J/WM#aly

Volume testing---Find the stability of the system with respect to handing large amounts of data over extended time periods.

6）     性能测试的一些例子

Application response time

Configuration sizing---At what point does degradation in performance occur

Acceptance---Is the system stable enough to go into production?51Testing软件测试网,M.L!n5e~gm }
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Regression---Does the new version of the software adversely affect response time?

Reliability---How stable is the system under a heavy work load?

Capacity planning51Testing软件测试网cY+Ixff

Bottleneck identification

Product evaluation---what is the best serve for 100 users?

7）     性能测试贯穿于软件生命周期51Testing软件测试网!mG0} Cj

Planning and Design---What is the server to support 1000 users?

Development---Does the system response time meet requirement?51Testing软件测试网i
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Deployment---Is the system reliable enough to go into production?51Testing软件测试网 t8S!J Xi KAs

Production---What is the cause of performance degradation?51Testing软件测试网gG!N4z,?

Evolution---How many users can be added without decreasing system performance?51Testing软件测试网iRo+i8e3x_ dd3u

第二讲：http://www.boobooke.com/v/bbk1060

 51Testing软件测试网N"]L|e1K/u

1） 手工性能测试的局限性51Testing软件测试网R*suU5Z;^

2） LR解决方案

Overcomes resource limitations

Replaces testers with “Virtual Users”

Runs many Vusers on few machines51Testing软件测试网ZLqd0{.]4Nb-Z

Controller manages Virtual Users

Allows repeatable tests with scrīpted actions51Testing软件测试网_aKOwf[

provides meaningful results with analysis tools

3） LR能干什么?

LR allows you to

scale---the application to a predetermined capacity,51Testing软件测试网6fTG%Dt z({

identify---business processes or system components having trouble,51Testing软件测试网2n:meI*uk])U

diagnose---a problem to pinpoint the root cause

4） LR的组件（4大组件，3大软件）51Testing软件测试网ex.f
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脚本录制开发工具VuGen51Testing软件测试网/SY3tBq0n7u}.M9H
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集成控制器Controller51Testing软件测试网6ad1F/`.y

结果分析器Analysis51Testing软件测试网7OZFd
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压力机Load Generator，不是软件，是物理组件51Testing软件测试网 } ].Shqr+Vx[x$W

5） LR整体架构图51Testing软件测试网 UJ1b$ST]X

6） VuGen---recordsVuser scrīptsthat emulate the steps of real users using the application51Testing软件测试网-_l+EW"X5L]$Ft

7） Controller---the controller is an administrative center for creating, marinating, and executingscenarios. The controller assigns Vusers and load generators to scenarios, starts and stops load tests, and performs other administrative tasks51Testing软件测试网$D4|%\ Ev:B^

8） Analysis---Analysis uses the load test results to creategraphsandreportsthat are used to correlate system information, identify bottlenecks, and performance issues.

9） Load Generators---load generators(also know as hosts or injectors) are used to run the Vusers that generate load on the application under test.  Load Generators are physical machines!

10）什么是虚拟用户？51Testing软件测试网2l/o1E,BWp#Pa}

Vusers are processes or threads running on the load generator.

11）LR支持的协议51Testing软件测试网-?;`"^*{vC

12）什么是场景（scenario）?

        Elements of a Scenario: Vusers, scrīpts, Number of load generators, run-time settings, run-time monitors.

13）LR对系统性能的监控

        ---Where is the bottleneck?

        ---monitors are non-intrusive and agent-less51Testing软件测试网!oq(D7U4Ig;DiK

        ---monitors gather data for online/offline analysis51Testing软件测试网x;O"F7[Q R+?

        ---monitors display real-time data during testing51Testing软件测试网3F^1|+o)AW,G W

        ---monitors gather data for offline root cause annlysis after testing

14）LR支持的监控器

15）性能测试的流程

plan load test---create VuGen scrīpts---scenario Creation---Scenario Execution<-->results analysis51Testing软件测试网BCi!Oi De3|G

16）性能测试是一个团队合作

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二、LoadRunner安装   http://www.boobooke.com/v/bbk106151Testing软件测试网snJ6G)Chu)rE

三、录制和回放测试脚本51Testing软件测试网DV2d+`\2M

第一讲：http://www.boobooke.com/v/bbk106351Testing软件测试网;F7NR ~E
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1)        创建测试脚本的工作流程51Testing软件测试网 a%e,_$Y2D"`3` v

2)        录制脚本的过程51Testing软件测试网pM`2b}/rC

3)        录制脚本的方法51Testing软件测试网5enM&U.D

sniffer的方法：利用以太网的传播特性

proxy的方法：更加有通用性51Testing软件测试网#\j9@_BM{

4)       录制的测试脚本的规律51Testing软件测试网R m%y!N3Du dx)z'y

脚本的语句是按照“发-收-发-收”的次序排列51Testing软件测试网?-v1{/_ Z:u4r$V(a:q

脚本是顺序执行的，没有分支判断或循环51Testing软件测试网 q0xy+\-fRX

以上两种规律适用于任何协议的录制脚本51Testing软件测试网e
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5)       简单的HTTP通讯举例

第二讲：http://www.boobooke.com/v/bbk106451Testing软件测试网-F3fy F?0e(EQ{

1） 简单的HTTP通讯举例

2） 脚本两种形式的51Testing软件测试网eN@T.zaP-k+ifW$Z e/n

调试和编程scrīpt

3） 录制选项

4） 两种类型的录制方式

html模式:生成的脚本高度浓缩，隶属于一个页面的请求浓缩到一个脚本中51Testing软件测试网$c7S9M9E-x

url模式： 忠实记录收发过程51Testing软件测试网4_;Y$G8c'k.A7J[o

5） HTML模式与URL模式的不同51Testing软件测试网J.H{1h,H1a4])T

6） HTML模式的优缺点

7） URL模式的优缺点

8） 如何选择这两种模式   51Testing软件测试网I0S!O2V-D}

第三讲：http://www.boobooke.com/v/bbk1065

1)    脚本的结构

Vuser_init:脚本启动的时候运行一次

Action:脚本的主题函数，可以运行任意次，由run-time setting进行设置51Testing软件测试网Q%mJ'HA.RZ5DNl E

Vuser_end：脚本退出的时候运行一次51Testing软件测试网!H)K*?+c NS\

2)    在VuGen回放脚本的目的

3)    回放测试脚本51Testing软件测试网YxmGF
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4)    运行时刻设置51Testing软件测试网2o0vnh"x`

5)    常用的调试工具

小布老师LR系列培训视频- LoadRunner测试Tuxedo应用系统51Testing软件测试网 [ ?2B^Ac+A;}h
http://www.boobooke.com/v/bbk1067
SFR,q9HcG1t.n"c0http://www.boobooke.com/v/bbk106851Testing软件测试网,olF9mc w
http://www.boobooke.com/v/bbk1071
?l3D,[]5w0http://www.boobooke.com/v/bbk107251Testing软件测试网@3qe%W2JcsT'Y.j