It's not possible for the kernel to predict the memory needs of a process unfortunately

But how about not scheduling swapped out processes if there currently is no free ram for their current RSS? of course kernel cannot know that a new process will balloon to eat all RAM, but once it has done so, is there a way to let it run to completion without being swapped out to "improve responsivity"?

	▲	man8alexd 9 hours ago \| parent [-]
		There is no actual swapping in the modern kernels. Nowadays, it is paging, when the kernel pages out individual unused memory pages, not entire processes, so it keeps all non-blocked processes running, but only necessary memory pages in the memory.

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man8alexd 11 hours ago | parent | prev [-]

It is possible to measure process memory utilitsation and set appropriate cgroup limits.