Comcast's L4S low-latency tech promises up to a 78% latency reduction, testing begins in select cities

A Comcast Xfinity truck.

According to comments made to The Verge this morning, Comcast is now rolling out a new latency reduction technology, L4S, to its Xfinity Internet service customers in select cities. The company plans to eventually roll out the feature to all its Xfinity Internet customers.

According to Comcast spokesperson Joel Shadle, L4S trials have shown that "we were able to reduce working latency—the latency under normal conditions in the home when people are using the Internet—by 78 percent."