Performance testing using hp load runner

PERFORMANCE TESTING
Testing using HP LoadRunner
Petr Kiryukhin
December 12, 2014 www.ExigenServices.com

2 www.ExigenServices.com
TABLE OF CONTENTS
 Performance Testing. Why? Goals.
 LoadRunner
 Overview – LR Components, System Architecture
 Virtual User Generator (VuGen):
– Virtual Users;
– Run and Debugging VuGen scripts;
– Transactions, Rendezvous points;
– Record, Vusers Types
 Controller:
– Understanding Scenarios;
– Creating & Executing LoadRunner scenarios;
– Configuring scenarios
 Analysis

PERFORMANCE TESTING
 Real system emulation
 Test executing
 Results analysis

WHY SHOULD YOU USE PERFORMANCE TESTING?
 Does the application respond quickly enough for the intended
users?
 Is the application stable under expected and unexpected user
loads?
 Will system meet the needs of the business before going live?

WHY SHOULD YOU USE PERFORMANCE TESTING?
 Are undetected application bottlenecks resulting in slow time or
downtime in production?
 Are you struggling to deploy business systems smoothly, with no
performance surprises?
 How do you know if an application or system can scale to the
desired level of usage in production?

WHY SHOULD YOU AUTOMATE PERFORMANCE TESTING?
 Manual testing limitations:
It is expensive, requiring large amount of both personnel and
machinery
It is complicated, especially coordinating and synchronizing multiple
testers
It involves a high degree of organization, especially to record and
analyze results meaningfully
The repeatability of the manual tests is limited

TESTING PROCESS. HOW DOES IT LOOK?
Record a basic
Vuser script
Enhance and edit
the script
Configure run-time settings
Run the Vuser script in stand-alone
mode
Incorporate the Vuser script
into a LR scenario
Planning the Test
Creating Vuser scripts
Creating the scenario
Running the scenario
Monitoring the scenario
Analyzing Test Results
number of scripts

LOADRUNNER
 LoadRunner is an automated solution:
– Put your application into stress;
– Create controlled and peak load conditions;
– Thousands of Virtual Users;
– Using a minimum of hardware resources;
– Repeatable, and measurable load

LOADRUNNER – TYPICAL ARCHITECTURE

LOADRUNNER – COMPONENTS
– Virtual User Generator (VuGen )
– Controller
– Analysis

LOADRUNNER – VIRTUAL USER GENERATOR
– Records & runs scripts (Records on Windows platforms only)
– Debugging of the scripts
– Script can run on a Windows or UNIX machine
– A custom type Vuser script

VIRTUAL USERS.
 Reduces personnel requirements
 Vusers emulate the behavior of real
 Control - from a single point of control
 By increasing the number of Vusers, you increase the load on the
system
 Reduces the amount of hardware required for testing

VUSER SCRIPTS USES SCRIPTS. WHAT IS IT ?!
 A small program
 The actions that a Vuser performs
 ‘User data point’
 ‘Parameters’
 ‘Rendezvous points’
 ‘Transactions’
 ‘Run-time settings’
 ‘Types’

VUSER SCRIPT STRUCTURE
Method within
Actions class
Record into
action
Used to emulate Executed during
init vuser_init a login to a
server
Initialization
action Action client activity Running
end vuser_end a log off
procedure
Finish or
Stopped

VUGEN – OVERVIEW, RUN, DEBUGGING

VUGEN – PARAMETERS

VUGEN - TRANSACTIONS
 The time it takes for the server to respond to specified Vuser
requests.
 Transactions are defined to measure the performance of the server.
 The Controller measures the response times.

VUGEN - TRANSACTIONS

VUGEN – RENDEZVOUS POINTS
 synchronize Vusers;
 to perform a task at exactly the same moment;
 to emulate heavy user load.
 Note: You may only add rendezvous points in the Action section –
not to the init or end .

VUGEN – RENDEZVOUS POINTS

RECORD VUSER SCRIPT

VUGEN – RECORDING OPTIONS
 Recording options specify:
– The information to record;
– Client/browser with which to record;
– Environment Settings;
– Recording Properties
 Some of the recording options available are:
– Recording Level – what information to record and which
functions to use when generating script;
– Correlation (HTML/WEB)

VUGEN – RECORDING OPTIONS
Setting the Recording Level:

VUGEN – RUN-TIME SETTINGS
 Run-time settings define the way in which a script runs.
– Stored in the default.cfg in the Vuser script directory
– Applied to Vusers when the script is executed using VuGen or
the Controller
 Configuring run-time settings enable you to emulate different kinds
of user activity

 General run-time settings include:
– Run Logic – Number of times the action block of the script
iterations (For HTML/WEB);
– Pacing – the time between iterations;
– Log – how much information is logged to the output;
– Think time – emulates the time a real user waits between
actions;
– Miscellaneous.

Setting the Run Logic [HTML/WEB] :

Setting the Pacing:

Setting the Think time:

Setting the Miscellaneous:

VIRTUAL USER TYPES
 Application Deployment Solution: For Citrix/Microsoft RDP
 Client/Server: For DB2 CLI, DNS, MS SQL Server, ODBC, Oracle (2-tier),
Sybase Ctlib, Sybase Dblib, Windows Sockets protocols
 Distributed Components: For COM/DCOM, CORBA–Java, and RMI–
Java protocols
 E-business: For FTP, LDAP, Palm, Web (HTTP/HTML), Web Services,
SOAP and Web/Winsocket Dual protocol
 Enterprise Java Beans: For EJB Testing and Rmi-Java protocols
 ERP/CRM: For Baan, Oracle NCA, Peoplesoft-Tuxedo, Peoplesoft 8,
SAPGUI, SAP-Web, and Siebel (Siebel-DB2CLI, Siebel-MSSQL, Siebel-
Web, and Siebel-Oracle) protocols
 Legacy: For Terminal Emulation (RTE)
 Mailing Services: Internet Messaging (IMAP), MS Exchange (MAPI),
POP3, and SMTP
 Middleware: Jacada and Tuxedo (6, 7) protocols
 Streaming: For MediaPlayer and RealPlayer protocols
 Wireless: For i-Mode, VoiceXML, and WAP protocols
 Custom: C Vuser, Java template, Javascript Vuser, VB Script Vuser,
Visual Basic template

VIRTUAL USERS PROTOCOLS
 Microsoft .NET Protocol
 Java Protocol
 Java Protocol - Manually Programming Scripts
 Enterprise Java Beans (EJB) Protocol
 Flex Protocol
 AJAX Protocol
 AMF Protocol
 Citrix Protocol
 RDP Protocol

 Click and Script Protocol
 Web Protocols
 Oracle NCA Protocol
 SAP Protocols
 Java over HTTP Protocol
 RTE Protocol
 Windows Sockets Protocol
 Mailing Service Protocols
 Tuxedo Protocols

 Siebel Web Protocol
 COM Protocol
 Database Protocols
 LDAP Protocol
 Wireless Protocols
 SilverLight Protocol
 Web Services - Adding Script Content
 Web Services - Managing Services
 Web Services – Security

 Web Services - Preparing Scripts for Replay
 Web Services - Service Emulation

 Note: In order to run the various protocols, you must have either a
global license or licenses for the desired protocols.

LOADRUNNER – CONTROLLER
 Easily and effectively control
 Single point of control
 Creates scenarios to test
– Manages:
– Load generators;
– Number of virtual users;
– Monitors.

SCENARIOS
 number of users to emulate;
 the actions they perform (Vuser scripts);
 load generators

CONTROLLER – SCENARIOS
Choosing the scenario type:

CONTROLLER – CREATING A SCENARIO
 Select the Vuser scripts for the scenario
 Add a Vuser group:
– Choose a group name;
– Select the number of Vusers to create in the group;
– Select a load generator;
– Select a Vuser script from the list
 Configure run-time settings for the group

CONTROLLER – CONFIGURING A SCENARIO
 Some of the important parameters that maybe configured for each
scenario:
– Run-time settings;
– Timeout interval;
– Run-time file storage

CONTROLLER – TAB ‘DESIGN’

LOADRUNNER – MONITORS
 Run – time: number and status of Vusers
 Transaction: transaction rate and response time
 Web Resource: statistics at the Web server
 System Resource: Windows, UNIX etc.

LOADRUNNER – MONITORS

LOADRUNNER – ANALYSIS
 Graphs
 Reports
 Drill down
 External monitors
 Correlation analysis
 Controller stores a result (.lrr)
 Analyze creates session

LOADRUNNER – ANALYSIS

HINTS
 %LR_Home%helpbooksbooks.pdf

THANK YOU
Questions?

Performance testing using hp load runner

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