There's been too much effort wasted trying to find the one-size-fits-all perfect CPU scheduler for all system rules. For apps such as postgres that care enough

There's been too much effort wasted trying to find the one-size-fits-all perfect CPU scheduler for all system rules. For apps such as postgres that care enough about CPU scheduling to have written their own cpu scheduler, then it's not too much to ask the authors of such apps to make a few additional system calls to tell the kernel what type of scheduling is preferred for this app, rather then leave it all to the kernel to determine the perfect schedule for every running app.