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These kind of schedulers often harm servers' I/O usage. And the opposite it's true too. Server based loads are bad for multimedia/gaming desktops.



Yes, that's why it's a config option; but if the code is in the kernel a distro can package up a preempt-rt kernel by flipping the config flag rather than maintaining an out-of-tree patchset, which is a _much_ lower burden.


Ah, TIL. I thought the -rt kernel was in mainline since mid 2000's.




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