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CONFIG_KVM_EXIT_TIMING: Detailed exit timing

General informations

The Linux kernel configuration item CONFIG_KVM_EXIT_TIMING:

• prompt: Detailed exit timing
• type: bool
• depends on: CONFIG_KVM_440 || CONFIG_KVM_E500V2 || CONFIG_KVM_E500MC
• defined in arch/powerpc/kvm/Kconfig
• found in Linux kernels: 2.6.29–2.6.39, 3.0–3.9, 3.10-rc+HEAD

Help text

Calculate elapsed time for every exit/enter cycle. A per-vcpu report is available in debugfs kvm/vm#_vcpu#_timing. The overhead is relatively small, however it is not recommended for production environments.

If unsure, say N.

Hardware

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The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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