HP LoadRunner Readme HP LoadRunner Readme File Software Version: 12.02 Patch 2 (TruClient Native Mobile) Publication Date: May 2015 This patch integrates LoadRunner's TruClient - Native Mobile protocol with HP Mobile Center version 1.1. This version of HP Mobile Center contains enhancements such as Mobile Web, In App for Android, CSRF, support for Network Virtualization 9.0 support, General object steps, Replace test object for step, and additional gestures. For full details, check out the. Install this patch over version 12.02 or 12.02 Patch 1. Note: Multi-language (localization) is not supported for Mobile Center if you have installed Web Controller. It is not recommended to install this patch if you have previously installed Web Controller and a language pack.
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If you require multi-language support for Mobile Center, uninstall Web Controller and then install the patch. A later edition of the version 12.02 Readme file may be available. For updates, check one of these locations: or the. This following sections provide information about LoadRunner 12.02, such as new features, system requirements, and known issues. What's New in LoadRunner 12.02 Support for load generators on the cloud. Support for load generators on Microsoft Azure cloud. Support for “Project” concept on HP Helion Public Cloud.
Ability to filter machines with valid LoadRunner Controller certificates. For details, see the Use Cloud Load Generator Dialog Box in the LoadRunner documentation.
New Web Controller (Preview version) This release includes the new Web Controller. This newly-designed, browser-based Controller provides improved usability and high scalability. You can install it side-by-side with the desktop Controller (though they must be run separately). Note that the 12.02 Web Controller is released in “tech preview” mode; this enables you to check out this new component and give us your feedback. Web Controller is not intended for production testing and is not officially supported by HP Support. If you encounter issues, or have feedback you would like to submit, please use (Noise Testing New noise testing capabilities, allowing you to run a simple noise test alongside standard Vuser scripts. The noise test performs basic load testing without an actual business process.
For details, see Noise Generators in the LoadRunner documentation. General VuGen enhancements. Reduced memory consumption, facilitating the handling of very large scripts and scripts with many correlations. Proxy recording for Java over HTTP, Oracle NCA, and Oracle - Web protocols. For details, see How to Record a Script via a Proxy in the LoadRunner documentation.
A modernization of runtime settings replaces the original dialog box with a document view. The new runtime settings, with clear and descriptive hints, allow you to work with several runtime setting views simultaneously (requires IE 9 or higher). New runtime settings for Web-based protocols, including limiting the maximum response size written to the log. For details, see the Internet Preferences view in the runtime settings. New JSON view in snapshot pane, for HTTP requests and responses with an application/json content type. Protocol updates.
Citrix ICA:. Enhanced interactive logging. Text trapping capabilities for Java applications added to Citrix Agent. Support for latest versions of XenDesktop, and NetScaler Access Gateway. Web - HTTP/HTML:. New Traffic Filtering recording option, allowing the filtering of traffic to specific servers and ports.
For details, see the Network Mapping and Filtering Node in the LoadRunner documentation. Ability to employ traffic filtering and port mapping when working behind a proxy server. HTTP Prefetch and Preload support. For details, see the hints in the Browser Browser Emulation runtime settings view. Support for GWT 2.5 and 2.5.1.
Support for TLS1.1 and TLS1.2 in Proxy recording. For details, see How to Record a Script via a Proxy in the LoadRunner documentation. TLS1.1 and TLS1.2 are supported when creating scripts from a pcap file.
For details, see How to Create a Script by Analyzing Traffic (for Mobile Applications) in the LoadRunner documentation. (This functionality is a technical preview.). Support for the latest versions of Internet Explorer, Firefox, and Chrome.
Mobile Application - HTTP/HTML: Support for TLS1.1 and TLS1.2 in Proxy recording. TLS1.1 and TLS1.2 are also supported when creating scripts from a pcap file. For details, see How to Create a Script by Analyzing Traffic (for Mobile Applications) in the LoadRunner documentation. (This functionality is a technical preview.).
RTE: Win 8.1, Windows 2012 R2, and IPv6 support. Oracle - Web: This new enhanced protocol replaces Oracle Web App 11i. Correlation rules for Oracle Fusion and Oracle ADF are available through HPLN. (Click the HPLN icon in VuGen, log in to HPLN. In the Correlation Rules section, go to Correlation Rules for Oracle ADF). Flex: Support for latest versions of Flex and GraniteDS.
Web Services: Support for SOAP 1.2. TruClient:. New object identification method, providing better control over scripting and allowing you to create an extensibility mechanism. For details, see Descriptors in the LoadRunner documentation. Step-by-step examples demonstrating how to use object identification methods to enhance TruClient scripts.
Examples include sample HTML pages and scripts. For details, see Examples in the LoadRunner documentation. Support for multiple actions and run logic blocks. For details, see the TruClient Run Logic Tab in the LoadRunner documentation. Ability to import and export steps between TruClient scripts.
VuGen usability improvements. HPLN availability for users with limited permissions. Editor supports excessively long lines (over 9600 characters). Support for scripts with large number of database steps. OpenSSL upgrade. OpenSSL version 1.0.1j incorporating all of the latest security fixes. Controller enhancements.
Ability to initialize a greater number of Vusers at once. For details, see Schedule Actions in the LoadRunner documentation. Enhancements to integration with HP Network Virtualization, enabling multilingual display in Network Virtualization UI, and support for emulation on a local load generator.
Template protocols added to Community license bundle. Analysis enhancements. Ability to use a cached file to store the analytical data. This option allows Analysis to process very large result files, without exhausting system resources.
For details, see General Tab (Options Dialog Box) in the LoadRunner documentation. Improvements in Virtual Table Server (VTS). Usability improvements in the administrator user interface.
Ability to work with VTS API functions in Java and.NET scripts. For details, see the Virtual Table Server documentation. This is available with the VTS installation under the DVD's Additional Components folder. Integration with latest HP product versions. HP Service Virtualization.
HP Diagnostics. HP SiteScope. HP Unified Functional Testing (UFT). HP Application Lifecycle Management (ALM). HP Performance Center. HP Business Process Monitor (BPM) For details about the supported versions, see the. Improved documentation.
HTML5-based online help with enhanced search and navigation capabilities. Instructional slide shows for correlation and parameterization. For details, see Correlations in LoadRunner and Slideshow - How to Create a Parameter in the LoadRunner documentation. License bundle information was added to. What's New in LoadRunner 12.00 and 12.01 In addition, LoadRunner 12.02 also contains the enhancements added to LoadRunner 12.00 and 12.01, as described below. Support for load generators on the cloud. Easily provision cloud load generators from the Controller.
For details, see Adding a Cloud-Based Load Generator - Overview in the LoadRunner documentation. Support for load generators on HP Helion Public Cloud.
Support for load generators on Amazon EC2. Enhanced communication interface between Controller and load generators. Ability to configure the ports between all LoadRunner components—Controller, load generator, MI Listener, and Monitor over Firewall.
Ability to connect from Controller to load generator, MI Listener, and Monitor over Firewall via proxy. Use of Network Connection profiles that let you configure connection information, such as port and proxy, separately for each load generator. For details, see Network Profile Manager Dialog Box in the LoadRunner documentation.
Ability to configure load generators to accept communication only from trusted Controllers using SSL authentication. For details, see Network Profile Manager Dialog Box in the LoadRunner documentation. Improved support and enhanced usability for SSL security, with OpenSSL fixes. Network and security manager. New utility to configure network and security settings for LoadRunner agent, for both local and remote machines.
For details, see Network and Security Manager in the LoadRunner documentation. Enhancements for testing mobile applications. Replay support for SMP (SAP Mobile Platform) recorded sessions. For details, see How to create an SMP (SAP Mobile Platform) script in the LoadRunner documentation. Enhanced proxy recording. For details, see How to Record a Script via a Proxy in the LoadRunner documentation. Improvements and added features in VuGen.
Enhanced replay summary with transaction breakdown including new time- trend charts. For details, see Replay Summary Tab in the LoadRunner documentation. Support for editing common file types in VuGen editor—not limited to Vuser scripts. Ability to cancel a recording session without overwriting script. Improved stability and performance for Web correlations. Improved search capabilities. Debugger improvements.
Ability to disable snapshot creation during replay. Ability to add extra files to parser list and extract steps from extra files. Ability to configure Enhanced XML view. Ability to create a Web correlation from the Replay snapshot. Enhancements and added integrations for protocols. Web HTTP/HTML:. HTML5 WebSocket support.
For details, see the webwebsocket functions in the LoadRunner Function Reference. TruClient to Web HTTP/HTML protocol script converter. SSL utility for performing various OpenSSL commands through a user-friendly interface.
For details, see SSL Utility in the LoadRunner documentation. SPDY support. For details, see How to record the SPDY protocol in the LoadRunner documentation. Internet Explorer 11 support. TLS 1.1, TLS 1.2, and NPN support.
Enhanced asynchronous support with ResponseHeader callback. Usability and troubleshooting enhancements such as ability to identify recording failure and suggest a possible fix. Correlation improvements. Linux support: Replay support on Linux-based load generators was added for the following protocols: ODBC, FTP, IMAP, LDAP, POP3, SMTP, and Windows Sockets. TruClient: Support for rendezvous points, IP Spoofing, VTS, and HP network virtualization. Silverlight: Support for latest version and IP Spoofing.
SAP-Web: Design Studio support in VuGen. LDAP: Support for latest version of LDAP SDK.
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RDP: Support for latest version of RDP. Flex: Support for the latest Flex SDK. Java over HTTP: Support for mixed, chunked, and gzipped data in HTTP server responses.NET: Support for version 4.5. Citrix: Support for latest client receiver, ability to run multiple published applications in the same session, and latest XenDesktop support. Windows Sockets: General improvements and enhanced usability for correlations. SAP: The SAP Application Testing by HP, HANA Edition (LoadRunner and Quality Center/Application Lifecycle Management(ALM)) has received a Premium Qualification for SAP Vendor Branded Resellers. This certification is effective from LoadRunner 11.50 and ALM 11.00.
Analysis improvements. New graphs for WebSocket messages and connections. Reduction in HTML report generation time.
New supported technologies and platforms. Windows Server 2012 R2 and Windows 8.1 support. Support for Internet Explorer 11, Chrome version 30, and Firefox version 23. Support for latest versions of Eclipse, JUnit, NUnit, Jenkins, and Selenium. Revised Linux load generator support matrix and support for SUSE.
External IDE integration/add-ins for LoadRunner scripts and applications. Ability to invoke the Controller directly from Visual Studio and Eclipse. Add-in for Visual Studio 2012 for VuGen scripts and unit test developers. Support for latest version of Eclipse. For details, see Additional Components in the LoadRunner documentation. Improvements in Virtual Table Server (VTS). Create multiple running instances of VTS.
Run VTS commands and batch files from the command line. VTS support through a JavaScript API. Populate data tables with sample data from the main menu. Ability to monitor VTS changes from administrator user interface.
For details, see the Virtual Table Server documentation. This is available with the VTS installation under the DVD's Additional Components folder.
Integration with latest HP product versions. HP Service Virtualization. HP Diagnostics. HP SiteScope. HP Unified Functional Testing (UFT). HP Application Lifecycle Management (ALM) Improved documentation.
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Workflow diagrams added to user guide for testing and script creation processes. Enhancements to Flex, Web HTTP/HTML, and TruClient protocol documentation, with added tasks and procedures.
Improved organization of function reference including additional code samples and the new WebSocket functions. Enhanced Citrix documentation streamlining the process of recording a Citrix session. General enhancements. Simplified product installation with shorter installation time. Enhancements in the Linux load generator installation. Usability Improvements when working with multiple applications. Non-admin user support: LoadRunner components can now run under a standard user account and with UAC and DEP enabled—an administrator account is no longer required.
This applies to all LoadRunner components and tools. HP Network Virtualization integration enhancements. Database API functions are now available for all C language protocols. Enhanced Citrix section, providing updated and streamlined documentation on setting up your Citrix environment and testing Citrix applications.
Community license bundle. LoadRunner now delivered with the Community bundle which replaces the Instant-on license with the following features:.
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A permanent bundle with 50 Vusers. All protocols are included except for GUI (UFT), and COM/DCOM. Mobile license bundle.
A custom license bundle for testing mobile applications, including the Mobile Application - HTTP/HTML, TruClient - Mobile Web, and SMP protocols. For a complete list of supported integrations and product versions, see the Software Support site at, or select Help HP Software Support Online. Click the Support Matrix link, and search HP LoadRunner Support Matrices for the Product Availability Matrix for this version. Installation and Configuration Information For a complete list of supported integrations and product versions, see the Software Support site at, or select Help HP Software Support Online. Click the Support Matrix link, and search HP LoadRunner Support Matrices for the Product Availability Matrix for this version.
Permission Requirements The Installation process, for all components, requires a full administrator account (root account for Linux systems) for all operating systems. After installation, all of the LoadRunner applications and components run under a standard user account (an administrator account is not required), with UAC and DEP enabled. For limitations relating to user permissions for specific features and components, see. Note: On Windows 8.1, a restart is required after installing the prerequisite Microsoft Visual C 2005 Redistributable Packages. Restart the machine and run setup.exe again from the DVD or from the downloaded package.
Language Packs To install a language pack, at the completion of the LoadRunner installation, run the language pack setup from the LoadRunner DVD lrunner/ folder. System Requirements The following sections provide the system requirements:. System Requirements for full version of LoadRunner, VuGen, and Analysis The following table describes the system requirements for installing the full version of LoadRunner, VuGen standalone, or Analysis standalone.
Memory and CPU requirements vary per protocol and system under test. Note: Windows 8.1 and Windows 2012 R2 can only be used in conjunction with Internet Explorer 11—earlier versions cannot be installed. Requirement Value. Second Installation LoadRunner Full VuGen Standalone Analysis Standalone Load Generator Monitor Over Firewall MI Listener LR Full - No No No No No VuGen Standalone No - Yes No No No Analysis Standalone No Yes - No No No Load Generator No No No - No No Monitor over Firewall No No No No - No MI Listener No No No No No - Additional Installations and Upgrades.
All of the standalone installations (such as Load Generator and so forth) can be found on the DVD's Standalone Applications folder. All of the additional components (such as the Citrix Agent and so forth) can be found on the DVD's Additional Components folder. You can install LoadRunner 12.02 over an existing, earlier version of LoadRunner. If, however, you have a pre-11.00 version of LoadRunner, you must uninstall it before installing LoadRunner 12.02.
Note: To replay ODBC Protocol scripts on Linux machines, unixODBC v.2.3.1 or higher is required. Virtual Table Server (VTS) If you have an older version of VTS, uninstall it and reinstall the latest version from the Additional Components folder on the DVD. Notes and Limitations This section includes pre-installation notes, issues, and workarounds for LoadRunner version 12.02. For additional limitations and workarounds, see the 'Troubleshooting and Limitations' sections in the LoadRunner User Guide. When uninstalling a load generator on a Linux machine, the uninstall process may fail and the following message may appear: 'Error: failed & because &: cannot restore segment port after reloc: permission denied' Workaround: Use the setenforce 0 command to disable SE Linux before uninstalling the load generator. When the uninstall is complete, use the setenforce 1 command to enable SE Linux. Note: This limitation applies only to Oracle 5.0 and Red Hat 5 32-bit.
Coexistence with Unified Functional Testing (UFT). Issue: When recording and replaying TruClient - IE scripts ( and recording Web protocol scripts) on a Window Server operating system, it is recommended to turn off Internet Explorer Enhanced Security Configuration (IE ESC). Resolution: In Windows 2012 R2: Server Manager Local Server Internet Explorer Enhanced Security Configuration. In Windows 2008 R2: Server Manager Security Information Configure IE ESC. Issue: When using the Visual Studio 2010 and 2012 add-ins to create C# and VB.NET scripts: Visual Studio creates.NET assemblies that need to be registered in the system before their run.
Registration of the.NET assembly requires administrative permissions. Resolution: Enable UAC and register the.NET assembly before running the test using one of these methods:. Run Visual Studio 'As Administrator' and provide administrative credentials when prompted. In Project Settings, ensure that the Register for COM interop option is set ( Project Properties Build Register for COM interop).
Visual Studio will automatically register the test DLL as a.NET assembly every time it builds the project. Run Visual Studio without administrative permissions, and manually register the test DLL after it is built. To do so, run Windows Console with administrative permissions and run the following command:%WINDIR% Microsoft.NET Framework v4.0.30319 RegAsm.exe /codebase (ignore the warning issued when you run this command).
For example, you might replace with 'c: users qatest documents visual studio 2010 Projects LoadRunnerUser1 LoadRunnerUser1 LoadRunnerUser1.dll.' You do not need to register the DLL after every build. It is enough to register it once after making changes in the COM interfaces defined in the DLL.
Replay fails for a script recorded on the HP WebTours application. Workaround: Set the runtime settings to work with no proxy.
Insert Text Check functionality is not supported for 64-bit browsers. Workaround: Add a Text Check from the Snapshot pane after the script is generated. If you open an HP site in the embedded browser and the site is not included in the trusted sites list, you will be prompted to add the site to the trusted site list. After adding the site, you may receive a Web site scripting error. Close the error and continue working as you normally would. For the following protocols, replay is supported, but recording is no longer supported: Siebel - DB2 CLI, i-mode, EJB, Sybase Dblib, Sybase Ctlib, Informix, PeopleSoft-Tuxedo, PeopleSoft Enterprise, Tuxedo, VBScript Vuser, JavaScript Vuser, SQL Server, and Web Click and Script.
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These protocols will be removed from future releases of LoadRunner. Runtime errors generated during the replay of VBScript scripts, may not be handled properly. It is recommended that you port existing VBScript scripts to C. Possible Workaround: Enable the Continue on Error option in the Runtime setting. The VB protocol has been deprecated beginning LoadRunner 11.50.
When adding a conditional breakpoint based on a parameter value, the value is not updated immediately. Therefore, in the script step that follows, the condition may be ignored even though the argument value has been updated. Media Player - MMS: If you specify a non-default bandwidth in the runtime settings, LoadRunner may issue an error during replay. TruClient:. The following features are not supported for Internet Explorer version 11: HP Network Virtualization, modem speed emulation. Connection reporting is not supported when working with Internet Explorer version 11. If you added custom configurations to the pref.js or user.js files for scripts recorded with LoadRunner 11.52, you will need to re-add them to the LoadRunner 12.xx script files.
Tip: it is recommended that you backup existing files before you begin editing scripts with custom configurations in LoadRunner 12.xx. TruClient for Firefox and Internet Explorer are only supported for the Windows 2012 Standard server, but not the 2012 R2 server. It is recommended to use a Windows 2008 R2 server as the load generator machine, for scenarios that run both TruClient and Web HTTP/HTML scripts. The new Runtime Setting views have the following limitations:.
Several keyboard actions are not supported. The standard shortcut keys such as Ctrl+C, Ctrl+A, and Ctrl+V, are supported. For non-English locales, you may encounter issues with digits after the decimal separator. Controller and General. When you stop a named VTS instance, the instance may continue to run until you restart the VTS Windows service, which will block you from creating an instance with the same name or port. Workaround: Restart the Windows service.
For example, use the “net stop vtsservice” to stop the service, and “net start vtsservice” to restart it. Additional Components The Protocol SDK and Secure Host Communication utility were removed from LoadRunner 12.02. The Network and Security Manager replaces the Secure Host utility. New Web Controller. If a Web Controller log file is locked by Windows, the Web Controller will not start. To continue, unlock or delete the log file. The log files are located in the%programdata% HP LoadRunner WebController logs folder.
The Web Controller and load generator machines must have the same clock time, in order for LoadRunner Analysis to display data correctly. Rendezvous points in Vuser scripts are not supported with the Web Controller. Non-English Operating Systems. For non-English operating systems: Several components may contain untranslated items, such as the Print Preview page in VuGen, log files, and installation screens. LoadRunner cannot record a Vuser script for certain protocols if the LoadRunner installation is on a Chinese operating system, and the installation path contains Chinese characters. If you need to use non-English symbols in paths to scripts, scenarios, results, or analysis sessions, make sure to select the appropriate locale in the your machine's Region and Language settings.
Path names cannot be in multi-byte format. Script names, however, must be in English. Integrations This section provides integration information about:.
Data Format Extensions (DFE) Support. A Service Virtualization project cannot be correctly imported to a scenario, if the HP Service Virtualization server uses credentials for both SSL and monitors. Workaround: Configure the HP Service Virtualization server to use credentials only for SSL. Support Information Visit the HP Software Support Online web site at: This web site provides contact information and details about the products, services, and support that HP Software offers. HP Software online support provides customer self-solve capabilities. It provides a fast and efficient way to access interactive technical support tools needed to manage your business.
As a valued support customer, you can benefit by using the support web site to:. Search for knowledge documents of interest. Submit and track support cases and enhancement requests. Download software patches. Manage support contracts.
Look up HP support contacts. Review information about available services. Enter into discussions with other software customers. Research and register for software training Most of the support areas require that you register as an HP Passport user and sign in.
Many also require a support contract. To register for an HP Passport ID, go to: and click Register. To find more information about access levels, go to:. HP Software Solutions & Integrations and Best Practices Visit HP Software Solutions Now at to explore how the products in the HP Software catalog work together, exchange information, and solve business needs. Visit the Cross Portfolio Best Practices Library at to access a wide variety of best practice documents and materials. Legal Notices Warranty The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty.
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HP LoadRunner – SAP Performance Testing One of the world’s largest generic and specialty pharmaceutical companies needed SAP performance testing infrastructure and the expertise to configure and deploy toolsets that could ensure optimal performance. As a result of implementing HP LoadRunner and assisting in the development of a SAP Testing Approach, the company was able to boost performance significantly. The aggressive 2-month timeline provided enough time to implement HP LoadRunner and mentor an internal team on how to use the best-in-class SAP testing tool before go-live. HP Load Runner Case Study One of the world’s largest generic and specialty pharmaceutical companies needed SAP performance testing infrastructure and the expertise to configure and deploy toolsets that could ensure optimal performance. As a result of implementing HP LoadRunner and assisting in the development of a SAP Testing Approach, the company was able to boost performance significantly. The aggressive 2-month timeline provided enough time to implement HP LoadRunner and mentor an internal team on how to use the best-in-class SAP testing tool before go-live.
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Compare HP Loadrunner vs. HP Quality Center We are here to simplify the whole process of reviewing Test Management Software products for you. For example, on this page you can look at the overall performance of HP Loadrunner (8.7) and contrast it with the overall performance of HP Quality Center (8.9). It's also possible to match their overall user satisfaction rating: HP Loadrunner (99%) vs.
HP Quality Center (99%). What’s more, lexamine their capabilities carefully to find out which product can better tackle your company’s requirements. In general, any business solution should allow you to quickly check the big picture, all the while allowing you easy access to the details. Currently, the most popular products in our Test Management Software category are: HPE ALM, HP Quality Center, PractiTest.
Compare Apache JMeter vs. HP Loadrunner Reviewing products to get the best Test Management Software does not always have to be complicated. On our review platform, it is possible to match HP Loadrunner and Apache JMeter and promptly see their varying features. We allow you to examine their capabilities, supported devices, level of support, pricing, terms, and much more. You may also examine their overall score (8.7 for HP Loadrunner vs.
8.5 for Apache JMeter) and overall customer satisfaction level (99% for HP Loadrunner vs. 99% for Apache JMeter).
Take your time and examine your top choices and find out which one is right for your company. You should also consider the software vendor’s background; are they reliable and will they still be around a few years from now?
People who want to save some time or could use a Test Management Software advice from our team may want to investigate these top choices for this year: HP Quality Center, HPE ALM, PractiTest.
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What is LoadRunner? LoadRunner is a Performancetool which was pioneered by Mercury in 1999. LoadRunner was later acquired by HPE in 2006. In 2016, Loadrunner was acquired by MicroFocus LoadRunner supports various development tools, technologies and communication protocols. In fact, this is the only tool in market which supports such large number of protocols to conduct. In this tutorial, you will learn-.
Why LoadRunner? LoadRunner is not only pioneer tool in Performance Testing, but it is still a market leader in the Performance Testing paradigm. In a recent assessment, LoadRunner has about 85% market share in Performance Testing industry. Broadly, LoadRunner supports RIA (Rich Internet Applications), Web 2.0 (HTTP/HTML, Ajax, Flex and Silverlight etc.), Mobile, SAP, Oracle, MSServer, Citrix, RTE, Mail and above all, Windows Socket.
There is no competitor tool in the market which could offer such wide variety of protocols vested in a single tool. What is more convincing to pick LoadRunner for performance testing is the credibility of this tool. LoadRunner has long established a reputation as often you will find clients cross verifying your performance benchmarks using LoadRunner. You'll find relief if you're already using LoadRunner for your performance testing needs.
LoadRunner is tightly integrated with other HP Tools like Unified Functional Test (QTP) & ALM (Application Lifecycle Management) with empowers you to perform your end to end Testing Processes. LoadRunner works on a principal of simulating Virtual Users on the subject application. These Virtual Users also termed as VUsers, replicate client's requests and expect a corresponding response to passing a transaction. Why do you need Performance Testing?
An estimated loss of 4.4 billion in revenue is recorded annually due to poor web performance. In today's age of Web 2.0, users click away if a website doesn't respond within 8 seconds. Imagine yourself waiting for 5 seconds when searching for Google or making a friend request on Facebook. The repercussions of performance downtime are often more devastating than ever imagined. We've examples such as those that recently hit Bank of America Online Banking, Amazon Web Services, Intuit or Blackberry. According to Dunn & Bradstreet, 59% of Fortune 500 companies experience an estimated 1.6 hours of downtime every week. Considering the average Fortune 500 company with a minimum of 10,000 employees is paying $56 per hour, the labor part of downtime costs for such an organization would be $896,000 weekly, translating into more than $46 million per year.
Only a 5-minute downtime of Google.com (19-Aug-13) is estimated to cost the search giant as much as $545,000. It's estimate that companies lost sales worth $1100 per second due to a recent Amazon Web Service Outage. When a software system is deployed by an organization, it may encounter many scenarios that possibly result in performance latency.
A number of factors cause decelerating performance, few examples may include:. Increased number of records present in the database. Increased number of simultaneous requests made to the system. a larger number of users accessing the system at a time as compared to the past What is LoadRunner Architecture? Broadly speaking, the architecture of LoadRunner is complex, yet easy to understand. Loadrunner Architecture Diagram Suppose you are assigned to check the performance of Amazon.com for 5000 users.
In a real-life situation, these all these 5000 users will not be at homepage but in a different section of the websites. How can we simulate differently VUGen: VUGen or Virtual User Generator is an IDE (Integrated Development Environment) or a rich coding editor. VUGen is used to replicate System Under Load (SUL) behavior. VUGen provides a 'recording' feature which records communication to and from client and Server in form of a coded script - also called VUser script. So considering the above example, VUGen can record to simulate following business processes:.
Surfing the Products Page of Amazon.com. Checkout.
Payment Processing. Checking MyAccount Page Controller Once a VUser script is finalized, Controller is the main component which controls the Load simulation by managing, for example:. How many VUsers to simulate against each business process or VUser Group. Behavior of VUsers (ramp up, ramp down, simultaneous or concurrent nature etc.). Nature of Load scenario e.g. Real Life or Goal Oriented or verifying SLA. Which injectors to use, how many VUsers against each injector.
Collate results periodically. IP Spoofing. Error reporting.
Transaction reporting etc. Taking an analogy from our example controller will add the following parameter to the VUGen Script 1) 3500 Users are Surfing the Products Page of Amazon.com 2) 750 Users are in Checkout 3) 500 Users are performing Payment Processing 4) 250 Users are Checking MyAccount Page ONLY after 500 users have done Payment Processing Even more complex scenarios are possible. Initiate 5 VUsers every 2 seconds till a load of 3500 VUsers (surfing Amazon product page) is achieved. Iterate for 30 minutes. Suspend iteration for 25 VUsers.
Re-start 20 VUSers. Initiate 2 users (in Checkout, Payment Processing, MyAccounts Page) every second. 2500 VUsers will be generated at Machine A. 2500 VUsers will be generated at Machine B Agents Machine/Load Generators/Injectors LoadRunner Controller is responsible to simulate thousands of VUsers - these VUsers consume hardware resources for example processor and memory - hence putting a limit on the machine which is simulating them. Besides, Controller simulates these VUsers from the same machine (where Controller resides) & hence the results may not be precise. To address this concern, all VUsers are spread across various machines, called Load Generators or Load Injectors.
As a general practice, Controller resides on a different machine and load is simulated from other machines. Depending upon the protocol of VUser scripts and machine specifications, a number of Load Injectors may be required for full simulation.
For example, VUsers for an HTTP script will require 2-4MB per VUser for simulation, hence 4 machines with 4 GB RAM each will be required to simulate a load of 10,000 VUsers. Taking Analogy from our Amazon Example, the output of this component will be Analysis: Once Load scenarios have been executed, the role of ' Analysis' component comes in. During the execution, Controller creates a dump of results in raw form & contains information like, which version of LoadRunner created this results dump and what were configurations.
All the errors and exceptions are logged in a Microsoft access database, named, output.mdb. The 'Analysis' component reads this database file to perform various types of analysis and generates graphs.
These graphs show various trends to understand the reasoning behind errors and failure under load; thus help to figure whether optimization is required in SUL, Server (e.g. JBoss, Oracle) or infrastructure.
Below is an example where bandwidth could be creating a bottleneck. Let's say Web server has 1GBps capacity whereas the data traffic exceeds this capacity causing subsequent users to suffer. To determine system caters to such needs, Performance Engineer needs to analyze application behavior with an abnormal load.
Below is a graph LoadRunner generates to elicit bandwidth. Performance Testing Roadmap: Detailed Steps Performance Testing Roadmap can be broadly divided into 5 steps:. Planning for Load Test. Create VUGen Scripts. Scenario Creation.
Scenario Execution. Results Analysis (followed by system tweaking) Now that you've LoadRunner installed, let's understand the steps involved in the process one by one. Steps involved in Performance Testing process Planning for the Load Test Planning for Performance Testing is different from planning a SIT (System Integration Testing) or UAT (User Acceptance Testing).
Planning can be further divided into small stages as described below: Assemble Your Team When getting started with Performance Testing, it is best to document who will be participating in the activity from each team involved during the process. Project Manager: Nominate the project manager who will own this activity and serve as point person for escalation. Function Expert/ Business Analyst: Provide Usage Analysis of SUL & provides expertise on business functionality of website/SUL Performance Testing Expert: Creates the automated performance tests and executes load scenarios System Architect: Provides blueprint of the SUL. Web Developer and SME:. Maintains website & provide monitoring aspects. Develops website and fixes bugs System Administrator:.
Maintains involved servers throughout a testing project Outline applications and Business Processes involved: Successful requires that you plan to carry out certain business process. A Business Process consists of clearly defined steps in compliance with desired business transactions - so as to accomplish your load testing objectives. A requirements metric can be prepared to elicit user load on the system. Below is an example of an attendance system in a company: In the above example, the figures mention the number of users connected to the application (SUL) at given hour. We can extract the maximum number of users connected to a business process at any hour of the day which is calculated in the rightmost columns. Similarly, we can conclude the total number of users connected to the application (SUL) at any hour of the day. This is calculated in the last row.
The above 2 facts combined give us the total number of users with which we need to test the system for performance. Define Test Data Management Procedures Statistics and observations drawn from Performance Testing are greatly influenced by numerous factors as briefed earlier. It is of critical significance to prepare Test Data for Performance Testing. Sometimes, a particular business process consumes a data set and produces a different data set. Take below example:.
A user 'A' creates a financial contract and submits it for review. Another user 'B' approves 200 contracts a day created by user 'A'. Another user 'C' pays about 150 contracts a day approved by user 'B' In this situation, User B need to have 200 contracts 'created' in the system. Watch khichdi online. Besides, user C needs 150 contracts as 'approved' in order to simulate a load of 150 users.
This implicitly means that you must create at least 200+150= 350 contracts. After that, approve 150 contracts to serve as Test data for User C - the remaining 200 contracts will serve as Test Data for User B.
Outline Monitors Speculate each and every factor which could possibly affect the performance of a system. For example, having reduced hardware will have potential impact on the SUL(System Under Load) performance. Enlist all factors and set up monitors so you can gauge them.