diff --git a/tests/functional/tests/conftest.py b/tests/functional/tests/conftest.py
index 52fe7ffc..862554f9 100644
--- a/tests/functional/tests/conftest.py
+++ b/tests/functional/tests/conftest.py
@@ -46,3 +46,12 @@ def pyocf_ctx_log_buffer():
     yield logger
     c.exit()
     gc.collect()
+
+
+def pytest_addoption(parser):
+    parser.addoption("--debug-log", action="store_true", help="enable debug logs")
+
+
+@pytest.fixture
+def debug_log(request):
+    return request.config.getoption("--debug-log")
diff --git a/tests/functional/tests/engine/test_read.py b/tests/functional/tests/engine/test_read.py
index e14ce6a8..e3c9b151 100644
--- a/tests/functional/tests/engine/test_read.py
+++ b/tests/functional/tests/engine/test_read.py
@@ -192,7 +192,7 @@ def print_test_case(
 @pytest.mark.parametrize("cacheline_size", CacheLineSize)
 @pytest.mark.parametrize("cache_mode", CacheMode)
 @pytest.mark.parametrize("rand_seed", [datetime.now()])
-def test_read_data_consistency(pyocf_ctx, cacheline_size, cache_mode, rand_seed):
+def test_read_data_consistency(pyocf_ctx, cacheline_size, cache_mode, rand_seed, debug_log):
     CACHELINE_COUNT = 9
     SECTOR_SIZE = Size.from_sector(1).B
     CLS = cacheline_size // SECTOR_SIZE
@@ -348,7 +348,8 @@ def test_read_data_consistency(pyocf_ctx, cacheline_size, cache_mode, rand_seed)
 
         # run the test for each selected IO range for currently set up region status
         for start, end in io_ranges:
-            print_test_case(region_start, region_state, start, end, SECTOR_COUNT, CLS)
+            if debug_log:
+                print_test_case(region_start, region_state, start, end, SECTOR_COUNT, CLS)
 
             # issue read
             START = start * SECTOR_SIZE