Utilization inversion and proxy execution

Over the years, the kernel's CPU scheduler has become increasingly aware of how much load every task is putting on the system; this information is used to make smarter task placement decisions. Sometimes, though, this logic can go wrong, leading to a situation that Valentin Schneider describes as "utilization inversion". At the 2020 Power Management and Scheduling in the Linux Kernel summit (OSPM), he described the problem and some approaches that are being considered to address it.

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