diff mbox series

[kvm-unit-tests,v7,06/18] x86: pmu: Print measured event count if test fails

Message ID 20250215013636.1214612-7-seanjc@google.com (mailing list archive)
State New
Headers show
Series x86/pmu: Fixes and improvements | expand

Commit Message

Sean Christopherson Feb. 15, 2025, 1:36 a.m. UTC 
From: Dapeng Mi <dapeng1.mi@linux.intel.com>

Print the measured event count if the test case fails. This helps users
quickly know why the test case fails.

Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
---
 x86/pmu.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/x86/pmu.c b/x86/pmu.c
index d3617c80..89197352 100644
--- a/x86/pmu.c
+++ b/x86/pmu.c
@@ -204,8 +204,12 @@  static noinline void __measure(pmu_counter_t *evt, uint64_t count)
 
 static bool verify_event(uint64_t count, struct pmu_event *e)
 {
-	// printf("%d <= %ld <= %d\n", e->min, count, e->max);
-	return count >= e->min && count <= e->max;
+	bool pass = count >= e->min && count <= e->max;
+
+	if (!pass)
+		printf("FAIL: %d <= %"PRId64" <= %d\n", e->min, count, e->max);
+
+	return pass;
 }
 
 static bool verify_counter(pmu_counter_t *cnt)