diff --git a/modules/calib3d/perf/perf_pnp.cpp b/modules/calib3d/perf/perf_pnp.cpp
index b32b96cae..44d390ef7 100644
--- a/modules/calib3d/perf/perf_pnp.cpp
+++ b/modules/calib3d/perf/perf_pnp.cpp
@@ -96,7 +96,7 @@ PERF_TEST(PointsNum_Algo, solveP3P)
     SANITY_CHECK(tvec, 1e-6);
 }
 
-PERF_TEST_P(PointsNum, SolvePnPRansac, testing::Values(4, 3*9, 7*13))
+PERF_TEST_P(PointsNum, DISABLED_SolvePnPRansac, testing::Values(4, 3*9, 7*13))
 {
     int count = GetParam();
 
diff --git a/modules/core/perf/perf_addWeighted.cpp b/modules/core/perf/perf_addWeighted.cpp
index 742b684be..82ca45a02 100644
--- a/modules/core/perf/perf_addWeighted.cpp
+++ b/modules/core/perf/perf_addWeighted.cpp
@@ -23,6 +23,13 @@ PERF_TEST_P(Size_MatType, addWeighted, TYPICAL_MATS_ADWEIGHTED)
 
     declare.in(src1, src2, dst, WARMUP_RNG).out(dst);
 
+    if (CV_MAT_DEPTH(type) == CV_32S)
+    {
+        //see ticket 1529: absdiff can be without saturation on 32S
+        src1 /= 8;
+        src2 /= 8;
+    }
+
     TEST_CYCLE() cv::addWeighted( src1, alpha, src2, beta, gamma, dst, dst.type() );
 
     SANITY_CHECK(dst);
diff --git a/modules/ts/src/ts_perf.cpp b/modules/ts/src/ts_perf.cpp
index e66cbe5be..25e81858e 100644
--- a/modules/ts/src/ts_perf.cpp
+++ b/modules/ts/src/ts_perf.cpp
@@ -16,7 +16,7 @@ const std::string command_line_keys =
     "{   |perf_force_samples  |100      |force set maximum number of samples for all tests}"
     "{   |perf_seed           |809564   |seed for random numbers generator}"
     "{   |perf_threads        |-1       |the number of worker threads, if parallel execution is enabled}"
-    "{   |perf_write_sanity   |         |allow to create new records for sanity checks}"
+    "{   |perf_write_sanity   |false    |allow to create new records for sanity checks}"
 #ifdef ANDROID
     "{   |perf_time_limit     |6.0      |default time limit for a single test (in seconds)}"
     "{   |perf_affinity_mask  |0        |set affinity mask for the main thread}"
@@ -25,7 +25,7 @@ const std::string command_line_keys =
     "{   |perf_time_limit     |3.0      |default time limit for a single test (in seconds)}"
 #endif
     "{   |perf_max_deviation  |1.0      |}"
-    "{h  |help                |         |print help info}"
+    "{h  |help                |false    |print help info}"
 #ifdef HAVE_CUDA
     "{   |perf_run_cpu        |false    |run GPU performance tests for analogical CPU functions}"
     "{   |perf_cuda_device    |0        |run GPU test suite onto specific CUDA capable device}"