Analyze Site
(Benchmark)
The Analyze Site tab is accessed from Performance | Testing | Analyze Site.
The following procedure describes how to benchmark Web Applications.
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To Benchmark Web Applications:
Go to Performance | Testing and select the Test URL Tab.
To test a script, follow these steps:
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Click Test URL and type the full path of the script. To select a previously tested URL, click Show History. By default, URLs are tested using GET variables defined in the query string.
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Click "Add variables to URL" to add the variable Name and Value to test URLs using specific SESSION or COOKIE variables. Add the User Name and Password to test URLs that are restricted by HTTP Authentication.
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To delete any variable from the list, click next the variable (To add specific SESSION variables to the test, make sure that your PHP is configured correctly to work with sessions. For example: if you use 'files' as your session.save_handler, confirm that the session.save_path is a valid path. If you use 'user' as your session.save_handler, you must prepend the file containing the user-level session storage functions).
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To determine the Duration of test, specify the time in seconds (per script) in the Duration of test box.
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Click Run.
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Test Results
The Test Results screen depicts the Dynamic Content Caching Results, the Code Acceleration Results, and the File Compression Results.
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The Dynamic Content Caching Results compares between the Base script and the script after it has been cached, and calculates the total performance improvement accomplished due to caching.
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The Code Acceleration Results displays the performance gain. If the script is cached, acceleration does not improve performance acceleration is therefore not necessary.
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The File Compression Results compares between the original file size and the compressed file size and calculates the savings in bytes and the improvement in percentage.
When running the Analyze Site test, you can choose to run the Performance test separately from the Compression test:
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Performance Test results - indicate the average improvement achieved by Code Acceleration, Content Caching and the average overall improvement achieved.
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Compression Test results - present the improvement accomplished due to the File Compression.
To Analyze a Site:
Go to: Performance | Testing and select the Analyze Site tab.
The following options are presented in the tab:
Performance Test
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To run a performance test:
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Select the number of scripts to test and press Next.
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The following screen lists the scripts selected. To change the number of the scripts to be tested, click "Previous". To continue, click "Next"
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The Site Analysis Report appears indicating the Performance Gain and Popularity Rank of the scripts.
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N/A Test Results
The following procedure describes how to investigate N/A test results. N/A test results can be caused by various reasons.
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To check the cause of a N/A test result:
Place the cursor on top of the N/A and the cause of the problem appears in a Tooltip.
N/A can be caused when a script cannot be accessed or if the access time to the script is greater than the test duration (3 sec). If this is the case, test the script separately using the Test URL option.
After analyzing the test results you may wish to modify the caching status of the scripts and re-run the test.
To re-run the test:
Click "Edit" next to the script you wish to modify, change the caching conditions and save the new settings. If the message appears, the test results are incorrect since the changes you made did not take effect. In this case, restart the server and simulate a typical user session to get valid results.
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Compression Test
The Compression test analyzes download time improvement of the popular scripts as the result of Compression.
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To run a compression test:
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Click "Run Compression Test".
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Choose the number of scripts to test and click "Next".
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To ensure accurate results for the scripts, add query strings in the Script Path entries. For example: /site/example.php?var1=value1&var2=value2).
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Click "Run" to run the test.
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The Site Analysis Report screen details the results for the compression test. The report shows the original script size, along with the compressed size and the compression improvement rate. The actual compression functionality is not affected.
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If one or more scripts failed the test, an indicative message appears on the screen. The Compression Test failed since Platform Performance cannot resolve the URL from some script paths or the URL cannot be accessed. Note that scripts defined on a virtual host or a symbolic link can cause the test to fail.
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Show Last Test Reports
The last Test Results summary is displayed in the Testing environment.
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To display last Test Reports, click "Show Last Performance Test Report" or "Show Last Compression Test Report".
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The displayed Test Report will be updated as soon as you run another test.
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Note:
Test results can also be sent by e-mail and stored outside Zend Platform
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