Not really sure the point you're making, maybe you need some form of back pressure? How would that differ with varying I/O models? Fear of the operating syste

Not really sure the point you're making, maybe you need some form of back pressure? How would that differ with varying I/O models? Fear of the operating system interfaces is a heuristic for me, especially an unwillingness to work on their implementation when the company has more than on order of 100 engineers.