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Measuring actual end user performance and availability of web applications

  • US 9,973,568 B2
  • Filed: 01/07/2015
  • Issued: 05/15/2018
  • Est. Priority Date: 07/21/2010
  • Status: Active Grant
First Claim
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1. A method in a client, comprising:

  • transmitting a request to a server for a web application containing a web page;

    receiving an instrumented client application code from the server in response to the request, the instrumented client application code configured to implement the web application, the instrumented client application code including instrumentation code having portions inserted into a header and a body of the instrumented client application code at the server, the instrumentation code configured to be executed to capture performance information regarding the web application at the client when the instrumented client application code is rendered at the client, and being configured to transmit the captured performance information from the client; and

    said executing comprising;

    capturing a start load time for the web page with a first portion of the instrumentation code inserted in the header;

    capturing an end load time for the web page with a second portion of the instrumentation code inserted in the body; and

    calculating a load duration based on the end load time and the start load time.

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