diff --git a/imperative/python/src/common.cpp b/imperative/python/src/common.cpp
index f91eb9b8ee37e4a890aa79b26cc1fc6702d6ec49..96d64b9e6772fa2bc8c7bfcd01808055eca8a225 100644
--- a/imperative/python/src/common.cpp
+++ b/imperative/python/src/common.cpp
@@ -66,7 +66,9 @@ void init_common(py::module m) {
         .def_static("_get_default_device", &get_default_device)
         .def("__str__", &CompNode::to_string_logical)
         .def("__repr__", [](const CompNode& cn) {
-            return py::str("\"" + cn.to_string() + "\" from \"" + cn.to_string_logical() + "\"");
+            return mgb::ssprintf("CompNode(\"%s\" from \"%s\")",
+                    cn.to_string_physical().c_str(),
+                    cn.to_string_logical().c_str());
         })
         .def_static("_sync_all", &CompNode::sync_all)
         .def(py::self == py::self)
diff --git a/lite/.gitattributes b/lite/.gitattributes
deleted file mode 100644
index c268a9ab651063425e1c50893566b10bed7f84fc..0000000000000000000000000000000000000000
--- a/lite/.gitattributes
+++ /dev/null
@@ -1,10 +0,0 @@
-test/resource/input_data.npy filter=lfs diff=lfs merge=lfs -text
-test/resource/lite/shufflenet.mge filter=lfs diff=lfs merge=lfs -text
-test/resource/lite/shufflenet_crypt_aes.mge filter=lfs diff=lfs merge=lfs -text
-test/resource/lite/test_packed_model.lite filter=lfs diff=lfs merge=lfs -text
-test/resource/lite/test_packed_model_rc4.lite filter=lfs diff=lfs merge=lfs -text
-test/resource/lite/output_data.npy filter=lfs diff=lfs merge=lfs -text
-test/resource/lite/model.mgb filter=lfs diff=lfs merge=lfs -text
-test/resource/lite/liveness_rgb_nosub128.rknn filter=lfs diff=lfs merge=lfs -text
-third_party/librknn_api filter=lfs diff=lfs merge=lfs -text
-test/resource/lite/model_atlas.mgb filter=lfs diff=lfs merge=lfs -text
diff --git a/src/core/include/megbrain/comp_node.h b/src/core/include/megbrain/comp_node.h
index 87c362ed06fb4f9ec088f00a1acf88e904ae0f3c..d03a3efd159900a5e0fe904296ebe606d00eed14 100644
--- a/src/core/include/megbrain/comp_node.h
+++ b/src/core/include/megbrain/comp_node.h
@@ -368,8 +368,15 @@ class CompNode {
         //! change to another stream on the same memory node
         CompNode change_stream(int dest_stream) const;
 
-        //! get string representation of physical device
+        //! get string representation
         std::string to_string() const {
+            return m_impl ? mgb::ssprintf("CompNode(\"%s\" from \"%s\")",
+                    to_string_physical().c_str(),
+                    to_string_logical().c_str()) : "invalid";
+        }
+
+        //! get string representation of physical device
+        std::string to_string_physical() const {
             return m_impl ? m_impl->locator().to_string() : "invalid";
         }