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Manual Chapter: Examining Application Statistics
Manual Chapter
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Overview: Examining application statistics

This implementation describes how to view application statistics on the BIG-IP® system. You can examine the statistics on the Analytics charts when Application Visibility and Reporting (AVR) is provisioned. The system recalculates the Analytics statistics and updates the charts every five minutes.

Examining application statistics

Before you can look at the application statistics, you need to have created an Analytics profile so that the system is capturing the application statistics internally on the BIG-IP® system. You must associate the Analytics profile with one or more virtual servers (in the Analytics profile or in the virtual server). If you created an iApp application service, the template provided allows you to associate the virtual server. To view Analytics statistics properly, Adobe Flash Player must be installed on the computer where you plan to view them.
You can review charts that show statistical information about traffic to your web applications. The charts provide visibility into application behavior, user experience, transactions, and data center resource usage.
  1. On the Main tab, click Overview > Statistics > Analytics. The Statistics: Analytics screen opens and shows charts with application statistics.
  2. From the Time Period list (on the right), select the amount of time (last hour, day, week, or month) for which you want to view the statistics.
    Tip: To display reports for a specific time period, for the View setting, select Advanced. In the Time Period list, you can then select Custom and specify the beginning and end dates.
  3. From the menu bar, select the type of statistics you want to view.
    Select this menu bar option To see these application statistics
    Transactions Displays the Layer 7 transaction rate (transactions per second) passing through the web application, and the number of transactions to and from the web application.
    Latency > Server Latency Displays how long it takes in milliseconds from the time a request arrives at the virtual server until a response arrives at the virtual server.
    Latency > Page Load Time Displays how long it takes in milliseconds from the time a client’s browser sends a request until the client’s browser finishes loading the response.
    Throughput > Request Throughput Displays HTTP request throughput in bits per second.
    Throughput > Response Throughput Displays HTTP response throughput in bits per second.
    Sessions > New Sessions Displays the number of transactions that open new sessions in sessions per second.
    Sessions > Concurrent Sessions Displays the total number of open and active sessions at a given time, until they time-out.
    The information in the charts depends on the settings you enabled in the Analytics profile.
  4. Click the tab for the entity (Applications, Virtual Servers, Pool Members, and so on) for which you want to display statistics; for example, click URLs to display statistics for each requested URL.
    Tip: You can also use the Advanced view (top right) to filter the information that is displayed.
  5. Focus in on the specific details you want to examine by clicking the item you want more information about. Click the chart or the details. The system refreshes the charts and displays information about the item.
  6. Above the charts, the system displays the path you followed to reach the current display, including the items you clicked. For example, to check throughput on a particular virtual server, follow these steps:
    1. From the Throughput menu, choose Request Throughput.
    2. Click the Virtual Servers tab. The charts show throughput statistics for all virtual servers on this BIG-IP system. You can point on the charts to get specific numbers.
    3. Click the virtual server you want more information about. You can either click a part of the pie chart or click the name of the virtual server in the Details table. The charts show throughput statistics for that virtual server. Above the charts, the path is displayed.
    4. To view information about other applications or retrace your path, click a link (in blue) in the path above the charts.
    As you drill down into the statistics, you can locate more details and view information for a specific item on all of the tabs.
Continue to review the collected metrics on the system by clicking on the menu items and tabs. As a result, you will get more familiar with the system, applications, resource utilization, and more, and you can view the statistics in clear graphical charts.
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