Load Tester™ New Features

New in 3.6 Release

Web Performance Load Tester version 3.6 includes a number of new features that make it even easier to use and more intuitive for its non-programmer user base. One of the application's most appealing new features is its use of visual displays and video demonstrations that let users with zero programming experience create test cases, run load tests and analyze the results.

The new Click-to-Configure feature lets users configure dynamic text entry fields simply by importing a list of established values. New Performance Goal Analysis instantly pinpoints the exact system location causing performance problems, while its User Capacity Analysis lets users know exactly how many visitors a site can handle given its current system architecture. Read the full press release.

New Feature Description
Click to Configure Configuring dynamic values for text entry fields is now as easy as importing a list of values and clicking on the field. You no longer need to figure out what the programmer called the field or what transaction it appears in...just click and configure.
Performance Goals

All-new performance goal analysis quickly show where the system is failing to meet your performance criteria for response time and failure rate. Duration goals can be set globally or easily customized for individual pages and transactions.

A system-wide assessment of goal compliance is now provided in the new Performance Goals section. At each user level the failed pages are listed, putting you one click away from the detailed analysis of the page.

User Capacity Analysis For years, only Load Tester has offered an analysis sophisticated enough to answer the most important question: "How many users can your site handle?" In combination with the new User-Level Analysis and Performance Goal features, the best analysis is even better - offering the most accurate automatic assessment of your web site. In addition, the analysis now allows more configuration options - providing the flexibility to handle complex performance requirements.
Expanded Application Compatibility Load Tester is now compatible with even more web applications! Improved .NET and viewstate support in Load Tester 3.6 increases compatibility with AJAX .NET applications. Page-refresh loops and fixed-count loops are now easily configured. Better XML/HTML entity encoding detection and configuration allows Load Tester to work with more applications with little or no customization.
User-Level Analysis Do you need to know how many pages/sec your site can handle at 150 users? Load Tester now answers that question instantly without the need to manually summarize data or fine-tune the test parameters. All of the test, page and transaction metrics are summarized by user-level and depicted clearly in both charts and tables in the Load Test Report. Naturally, the time-based analysis is still available - you can choose to see either one or both in the report. The load levels for analysis will be automatically selected based on the load configuration, but can be easily customized to provide exactly the data you need.
Waiting Users Analysis Two unique new metrics can tell you when your application is reaching capacity before the pages fail their performance goals and help diagnose erratic server behavior. Originally implemented by one of our developers for in-house use to help spot elusive performance problems, the Waiting Users and Average Wait Time metrics proved so useful, we couldn't keep them to ourselves. In a well-behaved system, they are not needed; but when a server becomes sporadically unresponsive, these metrics can be an invaluable aid to determining where and when the users are waiting for server responses.
New Test case Customization Tools Customizing complex test cases can occasionally be time-consuming, even when Load Tester's ASM wizard does most of the work for you. Finding field values and assignments in the Content view is now easier with the addition of the find-in-content feature: you can instantly locate content in large, complex pages.

The find-in-content feature is complemented by a test case-wide find capability in the new Search view. The text of transactions, pages or entire test cases can now be instantly searched. Searches can be narrowed down to specific transaction parts, such as headers, URL's or fields.

In addition, you can now instantly see the differences between the page content originally recorded in the test case and the content returned from the server during replays or load test. Quick identification of the differences will cut valuable time from the diagnosis and customization of complex test cases.
Report Improvements
  • New Performance Goals section added to show which performance goals failed at each user level.
  • Performance Goal Analysis sub-section for each page/transaction shows which goals failed.
  • Duration and Failure Rate goals are indicated on the user capacity analysis.
  • A new chart added in the Summary, Page and Transaction sections containing the new Waiting Users and Average Wait Time metrics.
  • Detailed page duration chart added as a scatter plot to provide a better understanding of the distribution of page durations.
  • Descriptions of charts are improved and table column headers have tool tips describing each metric.
  • The PPD section now links directly to the section of the report for the page.
New Load Test Metrics

New metrics provide more information to help you diagnose performance problems:

Incoming Bandwidth
The total amount of network traffic coming into the test servers from the load engines
More Specific Information

Completed Pages, Succeeded Pages, Failed Pages, Page Failure Rate and Total Failed Pages provide more specific information about the successes and failures of pages in the test. Replaces Errors and Total Error at the summary-level.

Detailed Page Durations

Along with the corresponding charts in the load test report, detailed page durations can provide a visual record of the load times for one or all pages in the test. The distribution of load times can provide valuable insight that is not available from the statistical metrics such as average and maximum duration. This metric is off by default to conserve memory.

New Errors Model

Completions, Successes, Failures and Failure Rate provide more specific information about each test case, page and transaction in the test case. Replaces the Repeats and Errors metrics.

Standard Deviation

Page Duration Standard Deviation and Average Wait Time Standard Deviation can provide additional insight and analysis methods on normally distributed data for those comfortable with statistical concepts.

Context-Sensitive Help All major GUI components have help available

Context-help window is moved next to the editors - making it easier to find  help when you need it.
Usability Improvements
  • Navigator view has a new Reports section, makes it easier to get to test reports. Selecting a test result in the navigator takes you directly to the report.
  • Tool tips on the Statistics view table headers and the metric name in the live load test charts describe each metric
  • Leading zeroes in numeric tables are suppressed for improved readability (user selectable) and chart dimensions can be customized.
  • Bandwidth metrics are displayed in bits/sec instead of bytes/sec (user selectable) in live load test charts and reports.

Software

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