diff options
| author | Wanpeng Li <wanpengli@tencent.com> | 2021-04-09 12:18:30 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-04-19 18:04:46 -0400 |
| commit | 4a7132efff1c9f4f80b3cdba75b81c4344e088c2 (patch) | |
| tree | 80f8b15982f871182dde235a6c37937dc23e5371 /arch/x86/include/asm/kvm_host.h | |
| parent | 2b519b5797d432923afaba9522b6b62e13313e4e (diff) | |
KVM: X86: Count attempted/successful directed yield
To analyze some performance issues with lock contention and scheduling,
it is nice to know when directed yield are successful or failing.
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Message-Id: <1617941911-5338-2-git-send-email-wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/kvm_host.h')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 2f6f4aeca6b7..770063d50142 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1146,6 +1146,8 @@ struct kvm_vcpu_stat { u64 halt_poll_success_ns; u64 halt_poll_fail_ns; u64 nested_run; + u64 directed_yield_attempted; + u64 directed_yield_successful; }; struct x86_instruction_info; |