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SubjectRe: [PATCH 0/9] Per-cgroup /proc/stat
Peter Zijlstra <> writes:
> Guys we should seriously trim back a lot of that code, not grow ever
> more and more. The sad fact is that if you build a kernel with
> cpu-cgroup support the context switch cost is more than double that of a
> kernel without, and then you haven't even started creating cgroups yet.

That sounds indeed quite bad. Is it known why it is so costly?

-- -- Speaking for myself only

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