The kernel's CPU scheduler currently offers several preemption modes that
implement a range of tradeoffs between system throughput and response time.
Back in September 2023, a discussion
on scheduling led to the concept of "lazy preemption", which could
simplify scheduling in the kernel while providing better results. Things
went quiet for a while, but lazy preemption has returned in the form of this patch series
from Peter Zijlstra. While the concept appears to work well, there is
still a fair amount of work to be done.
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[$] The long road to lazy preemption
The kernel's CPU scheduler currently offers several preemption modes that implement a range of tradeoffs between system throughput and response time. Back in September 2023, a discussion on scheduling led to the concept of "lazy…
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