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HPE LoadRunner logo.png
Developer(s) Micro Focus
Stable release
Operating system Microsoft Windows and Linux (Load Generator only)
Available in 11 languages
List of languages
Simplified Chinese, Dutch, English, French, German, Italian, Japanese, Korean, Portuguese-Brazilian, Russian, Spanish.
Type Load testing tools
License Proprietary
Website [1]

LoadRunner is a software testing tool from Micro Focus. It is used to test applications, measuring system behaviour and performance under load. LoadRunner can simulate thousands of users concurrently using application software, recording and later analyzing the performance of key components of the application.

LoadRunner simulates user activity by generating messages between application components or by simulating interactions with the user interface such as keypresses or mouse movements. The messages and interactions to be generated are stored in scripts. LoadRunner can generate the scripts by recording them, such as logging HTTP requests between a client web browser and an application's web server.[1]

Hewlett Packard Enterprise acquired LoadRunner as part of its acquisition of Mercury Interactive in November 2006.[2][3] In Sept 2016, Hewlett Packard Enterprise announced it is selling its software business, including Mercury products, to Micro Focus.[4] As of 01-Sept-2017, the acquisition was complete.[5]


The key components of LoadRunner are:

  • Load Generator generates the load against the application by following scripts
  • VuGen (Virtual User Generator) for generating and editing scripts
  • Controller controls, launches and sequences instances of Load Generator - specifying which script to use, for how long etc. During runs the Controller receives real-time monitoring data and displays status.
  • Agent process manages connection between Controller and Load Generator instances.
  • Analysis assembles logs from various load generators and formats reports for visualization of run result data and monitoring data.

Modules are available to enable LoadRunner to capture, replay and script different application and networking technologies. These include support for:[6]

LoadRunner can be run standalone or multiple instances can pooled for use by several people under the control of HP PerformanceCenter.


Version Service Pack Release date Notes
1.0 N/A 1989 Originally a Unix command line tool for shell scripts. It predates the first web browser!
2.0 N/A 1991 Added graphical X-Windows support
XL N/A 1994 Allowed multiple vUsers per Load Generator for the first time. LoadRunner XL also introduced monitoring for the first time.
6.0 N/A July 1999 Added Linux installation support
6.5 N/A June 2000 Added "TurboLoad" technology (i.e. Run users as threads)
7.51 N/A June 2000 Added Citrix ICA protocol support
7.8 N/A September 2003  
7.8 Feature Pack 1 September 2003 Added support for Windows XP.
8.0 N/A August 2004 Added "Additional Attributes" to Runtime Settings.
8.1 N/A August 2004 Added Web Click and Script technologies
9.0 N/A August 2004 Re-branded to HP LoadRunner
9.10 N/A February 2008 Added Web Services, Adobe AMF, and RDP
9.51 N/A July 6, 2009  
9.52 N/A June 14, 2010  
11.0 N/A September 2010  
11.0 Patch 1 January 6, 2011  
11.0 Patch 2 February 22, 2011 Added support for Visual Studio 2010 and Protocol Updates to Ajax TruClient, Citrix, Flex, Web.
11.0 Patch 3 June 20, 2011 Added support for IE9, Mobile protocols, GraniteDS.
11.0 Patch 4 November 2011 HP SV (Service Virtualization Integration) with Controller, GWT-DFE(Google Web Toolkit- Data Format Extension), RTMP Tunneled, Messaging support, Streaming support, Flex Correlations.
11.50 N/A November 2011 Added New VuGen IDE, Ajax TruClient for IE, Web Protocol Asynchronous Support, Flex, Mobile, .NET, Web Services, 64-bit applications recording, IPv6 support.
11.50 Patch 1 July 20, 2012 Added Ajax TruClient IE protocol.
12.00 N/A March 18, 2014 Added ability to instantiate instances on Amazon EC2 directly from LoadRunner UI.
12.02 N/A January 21, 2015 Added ability to instantiate instances on Microsoft Azure directly from LoadRunner UI.
12.50 N/A August 2015
  • JavaScript as a new scripting language for the Web-HTTP/HTML protocol
  • Chrome TruClient support added
  • Google Compute Engine supported as cloud provider
  • Ability to record a TruClient script with one browser and replay it with any
  • Integrated Network Virtualization solution (formerly known as Shunra)
  • Docker-based Linux installation
  • Generating scripts from HAR files
  • Major enhancements in .NET and Citrix protocols
12.50 Patch 3 May 5, 2016
  • Provides support for TruClient - Native Mobile protocol in HPE Mobile Center
  • Adds support for HPE Mobile Center 1.51
  • Fix for Amazon Cloud provisioning
12.53 N/A May 2016
  • Git integration in VuGen
  • Java 8 support, 64-bit replay support in Java protocols
  • New PCoIP protocol
  • HTTP Video Streaming (HTML5, HLS) support
  • HTTP/2 support
  • Enhanced SAPUI5 recording in TruClient
  • REST step-builder editor in VuGen
  • Support of Win 10 and recording using MS Edge browser
  • Built-in Linux compatibility test in VuGen
  • Improved performance of Linux Load Generators, support of additional Linux distributions
12.53 Patch 1 June 15, 2016 Fixes a memory allocation issue that can impact Web HTTP/HTML protocols.
12.53 Patch 2 August 3, 2016
12.53 Patch 3 September 29, 2016
12.53 Patch 4 January 4, 2017 LoadRunner 12.53 Patch 4 contains various enhancements, and provides support for the following:
  • HPE Mobile Center 2.20. For details, see the Mobile Center Help.
  • HPE Network Virtualization (NV) 12.53 Patch 1
  • Google Web Toolkit (GWT) support:
    • GWT Request Factory
    • GWT 2.7.0
    • Verified for use with GWT 2.8.0 (full support to be added in a future version).
12.55 N/A Aug 17, 2017 Added MQTT Protocol, support for JMeter tests, support for Windows 10 creators, Windows Server 2016, and Ubuntu 16.04. Also added support for Chromium 55 for TruClient protocol. LoadRunner 12.55 supports HTTP/2 64-bit record and replay and many performance improvements and enhancements.
12.56 N/A Feb 26, 2018 LoadRunner 12.56 contains various enhancements, and provides support for the following:
  • Runtime Settings Search
  • New supported technologies and platforms
  • Protocol enhancements
  • TruClient enhancements
  • VuGen enhancements
  • Controller and Analysis enhancements

HPE LoadRunner in the Cloud[edit]

From 2010 Hewlett Packard started to offer on-demand versions of LoadRunner available by cloud computing services such as Amazon Elastic Compute Cloud and later Microsoft Azure.[7][8] Version 12.50 added the use of Google Compute Engine. Selected HP partners are also able to provide LoadRunner in the Cloud as an on-demand service from their SaaS platforms.

Scripting Languages[edit]

LoadRunner client emulation scripts are usually created using the ANSI C programming language.[9] However, Java[10] and .Net programs can also be run by LoadRunner. Version 12.50 added the use of JavaScript for Web-HTTP/HTML scripts.

Scripts from other testing tools such as Apache JMeter, NUnit, and Selenium can be run by LoadRunner by declaring an interface library. This enables scripts to send key-value pairs to the Controller as the script runs, enabling response times to be associated with specific conditions such as the number of items displayed in the User Interface.

LoadRunner scripts can also be called from within Jenkins.

Sale to Micro Focus[edit]

As of September 2016, Hewlett Packard was in talks with Micro Focus to sell their service arm. The deal was finalized at $8.8 billion and was completed on 01-Sept-2017[11]

Support for JMeter Tests[edit]

LoadRunner 12.55 enables testers to run Apache JMeter scripts from Controller, alongside Vuser scripts and view the results to LoadRunner measurements. This feature is provided as beta version.[12]


External links[edit]