From: Stuart Yoder <stuart.yoder@xxxxxxxxxxxxx>
Convert to microseconds when displaying
(with fix from Bharat Bhushan <Bharat.Bhushan@xxxxxxxxxxxxx>).
This reduces rounding error with large quantities of short exits.
Signed-off-by: Stuart Yoder <stuart.yoder@xxxxxxxxxxxxx>
Signed-off-by: Scott Wood <scottwood@xxxxxxxxxxxxx>
Signed-off-by: Alexander Graf <agraf@xxxxxxx>
---
arch/powerpc/kvm/timing.c | 21 +++++++++++++++++----
1 files changed, 17 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/kvm/timing.c b/arch/powerpc/kvm/timing.c
index 18f40fd..319177d 100644
--- a/arch/powerpc/kvm/timing.c
+++ b/arch/powerpc/kvm/timing.c
@@ -151,17 +151,30 @@ static int kvmppc_exit_timing_show(struct seq_file *m, void *private)
{
struct kvm_vcpu *vcpu = m->private;
int i;
+ u64 min, max, sum, sum_quad;
seq_printf(m, "%s", "type count min max sum sum_squared\n");
+
for (i = 0; i < __NUMBER_OF_KVM_EXIT_TYPES; i++) {
+
+ min = vcpu->arch.timing_min_duration[i];
+ do_div(min, tb_ticks_per_usec);
+ max = vcpu->arch.timing_max_duration[i];
+ do_div(max, tb_ticks_per_usec);
+ sum = vcpu->arch.timing_sum_duration[i];
+ do_div(sum, tb_ticks_per_usec);
+ sum_quad = vcpu->arch.timing_sum_quad_duration[i];
+ do_div(sum_quad, tb_ticks_per_usec);
+
seq_printf(m, "%12s %10d %10lld %10lld %20lld %20lld\n",
kvm_exit_names[i],
vcpu->arch.timing_count_type[i],
- vcpu->arch.timing_min_duration[i],
- vcpu->arch.timing_max_duration[i],
- vcpu->arch.timing_sum_duration[i],
- vcpu->arch.timing_sum_quad_duration[i]);
+ min,
+ max,
+ sum,
+ sum_quad);
+
}
return 0;
}
--
1.6.0.2
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