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KVM: Per-vcpu statistics

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Make the exit statistics per-vcpu instead of global.  This gives a 3.5%
boost when running one virtual machine per core on my two socket dual core
(4 cores total) machine.

Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Avi Kivity
2007-04-19 17:27:43 +03:00
parent 3fca036530
commit 1165f5fec1
6 changed files with 79 additions and 53 deletions
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14
drivers/kvm/svm.c
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@@ -914,7 +914,7 @@ static int pf_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
case EMULATE_DONE:
return 1;
case EMULATE_DO_MMIO:
++kvm_stat.mmio_exits;
++vcpu->stat.mmio_exits;
kvm_run->exit_reason = KVM_EXIT_MMIO;
return 0;
case EMULATE_FAIL:
@@ -1054,7 +1054,7 @@ static int io_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
unsigned long count;
gva_t address = 0;
++kvm_stat.io_exits;
++vcpu->stat.io_exits;
vcpu->svm->next_rip = vcpu->svm->vmcb->control.exit_info_2;
@@ -1096,7 +1096,7 @@ static int halt_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
return 1;
kvm_run->exit_reason = KVM_EXIT_HLT;
++kvm_stat.halt_exits;
++vcpu->stat.halt_exits;
return 0;
}
@@ -1264,7 +1264,7 @@ static int interrupt_window_interception(struct kvm_vcpu *vcpu,
*/
if (kvm_run->request_interrupt_window &&
!vcpu->irq_summary) {
++kvm_stat.irq_window_exits;
++vcpu->stat.irq_window_exits;
kvm_run->exit_reason = KVM_EXIT_IRQ_WINDOW_OPEN;
return 0;
}
@@ -1636,14 +1636,14 @@ again:
r = handle_exit(vcpu, kvm_run);
if (r > 0) {
if (signal_pending(current)) {
++kvm_stat.signal_exits;
++vcpu->stat.signal_exits;
post_kvm_run_save(vcpu, kvm_run);
kvm_run->exit_reason = KVM_EXIT_INTR;
return -EINTR;
}
if (dm_request_for_irq_injection(vcpu, kvm_run)) {
++kvm_stat.request_irq_exits;
++vcpu->stat.request_irq_exits;
post_kvm_run_save(vcpu, kvm_run);
kvm_run->exit_reason = KVM_EXIT_INTR;
return -EINTR;
@@ -1672,7 +1672,7 @@ static void svm_inject_page_fault(struct kvm_vcpu *vcpu,
{
uint32_t exit_int_info = vcpu->svm->vmcb->control.exit_int_info;
++kvm_stat.pf_guest;
++vcpu->stat.pf_guest;
if (is_page_fault(exit_int_info)) {