[DLMED] enhance the doc of transform
@@ -205,7 +205,8 @@ class Transform(ABC):
thread-unsafe transforms should inherit :py:class:`monai.transforms.ThreadUnsafe`.
#. ``data`` content unused by this transform may still be used in the
subsequent transforms in a composed transform.
- #. storing too much information in ``data`` may not scale.
+ #. storing too much information in ``data`` may cause some memory issue or IPC sync issue,
+ especially in the multi-processing environment of PyTorch DataLoader.
See Also
