Cake is the comprehensive queue management system the bufferbloat project has been working on since 2013 and is nearing release. It is the rollup of 3 years of deployment experience using the htb + fq_codel based sqm-scripts.
Initially it came from the movie 2010 where an American was trying to explain the idioms “Easy as pie”, and “Piece of cake” to a Russian, who kept getting it wrong. Where it started was when Dave Taht tried to explain the need for a comprehensive queue management system to an audience in the ietf aqm working group, and was basically booed off the stage.
Later on it became a reference to the game “portal” - where, at the conclusion of the game, the AI promises that: “everyone will have cake”.
It is also (in a grand tradition of RED vs Blue) a backhanded reference to “Pie”, which is a competing AQM algorithm missing many of the features of cake.
The backronym invented for it became “Common Applications Kept Enhanced” - which is also, actually, exactly what it does.
Despite our affection for the name there is still time to change it to something else - googling for “cake shaper” does not result in anything useful. CQM, SQM would seem to have more useful google-fu, but…