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I'm currently building a kernel for my server, which should serve for hosting virtual machines using KVM. There are a few kernel configuration options that are already described in the KVM-Wiki. The article left out some points which I'm wondering about, specifically:

  • Should "Tickless System (Dynamic Ticks)" be set or not? It seems that Ingo Molnar apparently said that Dynamic Ticks would be helpful for a KVM host.

  • What Preemption Model should the kernel use?

  • What Timer Frequency value would you choose for a virtualization host kernel?

Thanks in advance.

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Which OS distribution, version, hardware? –  ewwhite Aug 18 '12 at 0:34
Latest Gentoo Linux, Kernel 3.3.8 with gentoo-Patchset (alias gentoo-sources), Hardware: Quad Core i7-3770 (Ivy Bridge) –  user1320304 Aug 18 '12 at 9:38

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