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End-user experience performance metrics

The monitored metrics for end-user experience (EUE) provide you with a way to measure the performance of your web-based application. The metrics represent the duration of page navigation timing events, which can help you pinpoint areas of concern or interest.

Where can I see these metrics?

To see EUE metrics in TrueSight Pulse, you must add the JavaScript snippet to your application. You can see the values of the collected metrics in the EUE dashboards.

The following diagram displays the monitored metrics for page navigation timing events, in the order they occur. Each metric is described in the table below.

End-user experience metrics for page navigation
Click to enlarge image.
End-user experience metrics for page navigation

End-user experience metrics for page navigation times
All times are in milliseconds or seconds.

Item in diagram Name Description

1.

Page Load

End-to-end page response time, the entire time it takes to load the page, from initial request to the browser finishes processing the page

2.

DNS

Time for the browser to complete the required domain lookup while retrieving a resource

3.

TCP

Time for the browser to establish a connection with the server, including other time intervals such as SSL handshakes and SOCKS authentication

4.

SSL

Time for the browser to perform the SSL handshake to secure the connection

5.

Back-End

Time spent on server and network tiers

6.

Time to First Byte (TTFB)

Time that the browser waits to receive the first piece of information

7.

Page Download

Time for the browser to download response from server

8.

Front-End

Time for the browser to process the critical rendering path of the request, including parsing, rendering, downloading sources, and executing JavaScript functions

9.

DOM Processing to Interactive

Time that the browser spends loading the webpage until the user can start interacting with it

10.

DOM Interactive to Complete

Time for the browser to load images and videos, and to execute JavaScript code that listens for the DOMContentLoaded event

11.

Onload

Time for the browser to execute JavaScript code that waits for the window.load event

12.

Ajax

Response time of Ajax calls

 

End-user experience metrics for page views and errors
All units are a numeric count.

Name Description

Page Views

Indication of user volume, the number of times that users access pages of the application

JavaScript Errors

Number of times a JavaScript error occurred. The errors occur in the client browser during runtime.

Ajax Errors

Number of Ajax requests that return HTTP error codes

 

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