主权项 |
1. A method comprising:
sending a first version of web content to a first plurality of client devices, wherein the first version of the web content does not include a particular feature; receiving, from each client device of the first plurality of client devices, first performance data that indicates performance of said client device with respect to processing the web content; sending a second version of the web content to a second plurality of client devices that is different than the first plurality of client devices, wherein the second version of the web content includes the particular feature; receiving, from each client device of the second plurality of client devices, second performance data that indicates performance of said client device with respect to processing the web content; comparing the first performance data with the second performance data to determine a difference between a processing metric associated with the first version of the web content and a processing metric associated with the second version of the web content; wherein the method is performed by one or more computing devices. |