Prioritization Only Works When There's Pending Data to Prioritize

Prioritization Only Works When There's Pending Data to Prioritize:

[ TL;DR: It’s possible to write data to sockets, even when they will not immediately be sent. Committing data too early can result in suboptimal scheduling decisions if higher priority data arrives later. If multiplexing different priority data onto the same TCP connection (e.g. via Pocket