[...]
+ kvm_vcpu_on_spin(vcpu);
Could you also enable CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT for arm and
check if ple handler logic helps further?
we would ideally get one more optimization folded into ple handler if
you enable that.
Just gave it a go, and the results are slightly (but consistently)
worse. Over 10 runs:
Without RELAX_INTERCEPT: Average run 3.3623s
With RELAX_INTERCEPT: Average run 3.4226s
Not massive, but still noticeable. Any clue?
Is it a 4x overcommit? Probably we would have hit the code
overhead if it were small guests.
RELAX_INTERCEPT is worth enabling for large guests with
overcommits.
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