Messages in this thread | | | Subject | Re: [PATCH] KVM: Disable wake-affine vCPU process to mitigate lock holder preemption | From | Paolo Bonzini <> | Date | Fri, 2 Aug 2019 10:38:53 +0200 |
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On 01/08/19 14:57, Dario Faggioli wrote: > Can't we achieve this by removing SD_WAKE_AFFINE from the relevant > scheduling domains? By acting on > /proc/sys/kernel/sched_domain/cpuX/domainY/flags, I mean? > > Of course this will impact all tasks, not only KVM vcpus. But if the > host does KVM only anyway...
Perhaps add flags to the unified cgroups hierarchy instead. But if the "min_cap close to max_cap" heuristics are wrong they should indeed be fixed.
Paolo
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