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Manual Chapter : Viewing Application Page Load Times

Applies To:

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BIG-IP AAM

  • 12.1.5, 12.1.4, 12.1.3, 12.1.2, 12.1.1, 12.1.0

BIG-IP APM

  • 12.1.6, 12.1.5, 12.1.4, 12.1.3, 12.1.2, 12.1.1, 12.1.0

BIG-IP Analytics

  • 12.1.6, 12.1.5, 12.1.4, 12.1.3, 12.1.2, 12.1.1, 12.1.0

BIG-IP LTM

  • 12.1.6, 12.1.5, 12.1.4, 12.1.3, 12.1.2, 12.1.1, 12.1.0

BIG-IP AFM

  • 12.1.6, 12.1.5, 12.1.4, 12.1.3, 12.1.2, 12.1.1, 12.1.0

BIG-IP PEM

  • 12.1.6, 12.1.5, 12.1.4, 12.1.3, 12.1.2, 12.1.1, 12.1.0

BIG-IP DNS

  • 12.1.6, 12.1.5, 12.1.4, 12.1.3, 12.1.2, 12.1.1, 12.1.0

BIG-IP ASM

  • 12.1.6, 12.1.5, 12.1.4, 12.1.3, 12.1.2, 12.1.1, 12.1.0
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Viewing Application Page Load Times

Overview: Viewing application page load times

You can display how long it takes for application web pages to load on client-side browsers. This information is useful if end users report that an application is slow, and you want to determine the cause of the problem. You can view page load times on the Analytics charts only if the HTTP Analytics profile for the web application is configured to save statistics concerning page load time.

The system can collect page load times only for clients using browsers that meet the following requirements:

  • Support Navigation Timing by W3C
  • Accept cookies from visited application sites
  • Enable JavaScript® for the visited application sites

Viewing application page load times

Before you can view application page load times, you need to create an Analytics profile that is logging statistics internally on the BIG-IP® system. In the profile, the statistics-gathering configuration must have Page Load Time selected as one of the collected metrics. The Analytics profile also needs to be associated with one or more virtual servers, or an iApps® application service.
You can view page load times on the Analytics charts. Page load time is how long (in milliseconds) it takes from the time an end user makes a request for a web page, until the web page from the application server finishes loading on the client-side browser.
Note: End user response times and latencies can vary significantly based on geography and connection types.
  1. On the Main tab, click Statistics > Analytics > HTTP .
    The Overview screen opens.
  2. From the Latency menu, choose Page Load Time.
    Charts show the average page load times in milliseconds for all applications and virtual servers associated with all Analytics profiles.
  3. To view average page load time for a specific application, in the Details table, select only that application.
    The charts refresh and show the page load time only for the selected application.
  4. To view page load time for a specific virtual server:
    1. Click Expand Advanced Filters.
    2. For Virtual Servers select Custom.
    3. Click Add and select the virtual server whose page load times you want to view.
    The charts show page load times for the selected virtual server.
  5. To zoom in on page load time during a specific time period, drag your cursor across the chart for the time period you are interested in.
    The system automatically refreshes the chart to display statistics for the time period you selected.
Tip: If you are concerned about maintaining a high level of user experience and productivity, you can configure the Analytics profile so that it sends an alert when the average page load time exceeds a number of milliseconds for some period of time.
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