diff --git a/imperative/python/megengine/data/dataloader.py b/imperative/python/megengine/data/dataloader.py
index f75e7a594f40bae8e5e390d6fd0647388176fb9c..9bd5162e65cd3b84eabf3ad203f0fc8c34058904 100644
--- a/imperative/python/megengine/data/dataloader.py
+++ b/imperative/python/megengine/data/dataloader.py
@@ -230,7 +230,7 @@ class _ParallelMapDataLoaderIter(_BaseMapDataLoaderIter):
         ]
 
         # use shared-memory queue implemented by pyarrow plasma store.
-        from ._queue import PlasmaShmQueue
+        from .tools._queue import PlasmaShmQueue
 
         self.batch_queue = PlasmaShmQueue(maxsize=2)
 
@@ -458,7 +458,7 @@ class _ParallelStreamDataLoaderIter(_BaseStreamDataLoaderIter):
         ]
 
         # shared-memory queue implemented by pyarrow plasma store
-        from ._queue import PlasmaShmQueue
+        from .tools._queue import PlasmaShmQueue
 
         self.batch_queue = PlasmaShmQueue(maxsize=2)
 
diff --git a/imperative/python/megengine/data/_queue.py b/imperative/python/megengine/data/tools/_queue.py
similarity index 100%
rename from imperative/python/megengine/data/_queue.py
rename to imperative/python/megengine/data/tools/_queue.py
diff --git a/imperative/python/test/run.sh b/imperative/python/test/run.sh
index ee983cbde9b7fbb127b9a35d5c6d6f2b36be49bc..6acc80d06c92e0d987d3e6358a04bec5bf430645 100755
--- a/imperative/python/test/run.sh
+++ b/imperative/python/test/run.sh
@@ -13,6 +13,8 @@ else
     exit 1
 fi
 
+export MEGENGINE_LOGGING_LEVEL="ERROR"
+
 pushd $(dirname "${BASH_SOURCE[0]}")/.. >/dev/null
     PYTHONPATH="." PY_IGNORE_IMPORTMISMATCH=1 python3 -m pytest $test_dirs -m 'not isolated_distributed'
     if [[ "$TEST_PLAT" == cuda ]]; then