[v2,1/2] test/kms_sysfs_edid_timing : Increase THRESHOLD_PER_CONNECTOR and THRESHOLD_TOTAL

Submitted by Lofstedt, Marta on Dec. 15, 2017, 1:04 p.m.


Message ID 20171215130420.12073-2-marta.lofstedt@intel.com
State New
Headers show
Series "kms_sysfs_edid timing and hack to run for BAT" ( rev: 1 ) in IGT (deprecated)

Browsing this patch as part of:
"kms_sysfs_edid timing and hack to run for BAT" rev 1 in IGT (deprecated)
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Commit Message

Lofstedt, Marta Dec. 15, 2017, 1:04 p.m.
The discussion on how to fix the issues has been stagnant for a
long time, see the Bugzilla below and:

After only changing display cable the result of my machine went
from always failing to hit a WARN. This is also illustrated on
CI-shards, where the shard-apl flip-flop between pass and WARN
and the shard-kbl always fail. This made me realize that the
THRESHOLD_PER_CONNECTOR also needed to be updated, while previous
discussion only touched the THRESHOLD_TOTAL. As discussed in
provided links the motivation for this test is to discover big
anomalies in edid timings, but with the current tight thresholds
we are hitting the issues too often.

V2: increased thresholds further after patchwork results.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100047
Signed-off-by: Marta Lofstedt <marta.lofstedt@intel.com>
 tests/kms_sysfs_edid_timing.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

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diff --git a/tests/kms_sysfs_edid_timing.c b/tests/kms_sysfs_edid_timing.c
index 12013881..53d96c1c 100644
--- a/tests/kms_sysfs_edid_timing.c
+++ b/tests/kms_sysfs_edid_timing.c
@@ -26,8 +26,8 @@ 
 #include <fcntl.h>
 #include <sys/stat.h>
-#define THRESHOLD_TOTAL		50
+#define THRESHOLD_TOTAL		150
 #define CHECK_TIMES		15
 IGT_TEST_DESCRIPTION("This check the time we take to read the content of all "
@@ -75,21 +75,21 @@  igt_simple_main
-		igt_debug("%s: mean.max %.2fns, %.2fus, %.2fms, "
+		igt_info("%s: mean.max %.2fns, %.2fus, %.2fms, "
 			  "mean.avg %.2fns, %.2fus, %.2fms\n",
 			  mean.max, mean.max / 1e3, mean.max / 1e6,
 			  mean.mean, mean.mean / 1e3, mean.mean / 1e6);
 		if (mean.max > (THRESHOLD_PER_CONNECTOR * 1e6)) {
-			igt_warn("%s: probe time exceed 10ms, "
+			igt_warn("%s: probe time exceed %ims, "
 				 "max=%.2fms, avg=%.2fms\n", de->d_name,
-				 mean.max / 1e6, mean.mean / 1e6);
+				 THRESHOLD_PER_CONNECTOR, mean.max / 1e6, mean.mean / 1e6);
 		igt_assert_f(mean.mean < (THRESHOLD_TOTAL * 1e6),
-			     "%s: average probe time exceeded 50ms, "
+			     "%s: average probe time exceeded %ims, "
 			     "max=%.2fms, avg=%.2fms\n", de->d_name,
-			     mean.max / 1e6, mean.mean / 1e6);
+			     THRESHOLD_TOTAL, mean.max / 1e6, mean.mean / 1e6);