Messages in this thread | | | Date | Wed, 4 Oct 2023 18:29:35 -0700 | Subject | Re: [PATCH v3] KVM: x86: Use fast path for Xen timer delivery | From | Sean Christopherson <> |
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On Sat, 30 Sep 2023 14:58:35 +0100, David Woodhouse wrote: > Most of the time there's no need to kick the vCPU and deliver the timer > event through kvm_xen_inject_timer_irqs(). Use kvm_xen_set_evtchn_fast() > directly from the timer callback, and only fall back to the slow path > when it's necessary to do so. > > This gives a significant improvement in timer latency testing (using > nanosleep() for various periods and then measuring the actual time > elapsed). > > [...]
Applied to kvm-x86 xen, thanks!
[1/1] KVM: x86: Use fast path for Xen timer delivery https://github.com/kvm-x86/linux/commit/77c9b9dea4fb
-- https://github.com/kvm-x86/linux/tree/next
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