From: Ville Syrjälä <ville.syrj...@linux.intel.com>
To aid in diagnosing failures, print out the expected time
difference between the two events.
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
tests/kms_flip.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/tests/kms_flip.c b/tests/kms_flip.c
index 7718e950b823..f685c945feb1 100644
--- a/tests/kms_flip.c
+++ b/tests/kms_flip.c
@@ -696,8 +696,9 @@ static void check_state(const struct test_output *o, const
struct event_state *e
usec_interflip = o->seq_step * frame_time(o);
igt_assert_f(fabs((usec_diff - usec_interflip) /
usec_interflip) <= 0.005,
- "inter-%s ts jitter: %ld.%06ld\n",
- es->name, diff.tv_sec, diff.tv_usec);
+ "inter-%s ts jitter: %ld.%06ld, expected %.6f\n",
+ es->name, diff.tv_sec, diff.tv_usec,
+ usec_interflip / USEC_PER_SEC);
igt_assert_f(es->current_seq == es->last_seq + o->seq_step,
"unexpected %s seq %u, expected %u\n",
--
2.7.4
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