The Web Performance Working Group has published two Proposed Recommendations and invites implementation of the Candidate Recommendation today:
- A Proposed Recommendations of User Timing, which defines an interface to help Web developers measure the performance of their applications by giving them access to high precision timestamps. Comments are welcome through 28 November.
- A Proposed Recommendation of Performance Timeline. This specification defines an unified interface to store and retrieve performance metric data. This specification does not cover individual performance metric interfaces. Comments are welcome through 28 November.
- A Candidate Recommendation of Timing control for script-based animations. This document defines an API web page authors can use to write script-based animations where the user agent is in control of limiting the update rate of the animation. The user agent is in a better position to determine the ideal animation rate based on whether the page is currently in a foreground or background tab, what the current load on the CPU is, and so on. Using this API should therefore result in more appropriate utilization of the CPU by the browser.
Learn more about the Rich Web Client Activity.