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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
Download Patch File Download Diff File Expand all files Collapse all files
drivers/kvm/vmx.c
+9 -9
View File
@@ -1396,7 +1396,7 @@ static int handle_exception(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:
@@ -1425,7 +1425,7 @@ static int handle_exception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
static int handle_external_interrupt(struct kvm_vcpu *vcpu,
struct kvm_run *kvm_run)
{
++kvm_stat.irq_exits;
++vcpu->stat.irq_exits;
return 1;
}
@@ -1492,7 +1492,7 @@ static int handle_io(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
unsigned long count;
gva_t address;
++kvm_stat.io_exits;
++vcpu->stat.io_exits;
exit_qualification = vmcs_read64(EXIT_QUALIFICATION);
in = (exit_qualification & 8) != 0;
size = (exit_qualification & 7) + 1;
@@ -1682,7 +1682,7 @@ static int handle_interrupt_window(struct kvm_vcpu *vcpu,
if (kvm_run->request_interrupt_window &&
!vcpu->irq_summary) {
kvm_run->exit_reason = KVM_EXIT_IRQ_WINDOW_OPEN;
++kvm_stat.irq_window_exits;
++vcpu->stat.irq_window_exits;
return 0;
}
return 1;
@@ -1695,7 +1695,7 @@ static int handle_halt(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;
}
@@ -1956,7 +1956,7 @@ again:
reload_tss();
}
++kvm_stat.exits;
++vcpu->stat.exits;
#ifdef CONFIG_X86_64
if (is_long_mode(vcpu)) {
@@ -1988,14 +1988,14 @@ again:
if (r > 0) {
/* Give scheduler a change to reschedule. */
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;
@@ -2021,7 +2021,7 @@ static void vmx_inject_page_fault(struct kvm_vcpu *vcpu,
{
u32 vect_info = vmcs_read32(IDT_VECTORING_INFO_FIELD);
++kvm_stat.pf_guest;
++vcpu->stat.pf_guest;
if (is_page_fault(vect_info)) {
printk(KERN_DEBUG "inject_page_fault: "