Sure, but after the connection is established, and "memory pressure" [1] is gone, shouldn't the tcp implementation grow the window again? [1] I'm putting this

Sure, but after the connection is established, and "memory pressure" [1] is gone, shouldn't the tcp implementation grow the window again? [1] I'm putting this in quotes, because the machines in questions have ridiculous amounts of memory, and the pressure merely came from SOMAXCONN being at their default value of 128.