diff --git a/services/sink/transport/src/distributed_input_sink_transport.cpp b/services/sink/transport/src/distributed_input_sink_transport.cpp
index 0025ea3..d7a1574 100644
--- a/services/sink/transport/src/distributed_input_sink_transport.cpp
+++ b/services/sink/transport/src/distributed_input_sink_transport.cpp
@@ -199,7 +199,7 @@ int32_t DistributedInputSinkTransport::RespLatency(const int32_t sessionId, std:
         return ERR_DH_INPUT_SERVER_SINK_TRANSPORT_RESP_LATENCY_FAIL;
     }
 
-    DHLOGI("RespLatency sessionId: %d, smsg:%s.", sessionId, SetAnonyId(smsg).c_str());
+    DHLOGD("RespLatency sessionId: %d, smsg:%s.", sessionId, SetAnonyId(smsg).c_str());
     return DH_SUCCESS;
 }
 
@@ -234,7 +234,7 @@ void DistributedInputSinkTransport::SendKeyStateNodeMsgBatch(const int32_t sessi
     }
     DHLOGI("SendKeyStateNodeMsgBatch sessionId: %d, event size: %d ", sessionId, events.size());
 
-    int64_t currentTimeNs = GetCurrentTime() * 1000LL;
+    int64_t currentTimeNs = GetCurrentTimeUs() * 1000LL;
     std::shared_ptr<nlohmann::json> eventsJsonArr = std::make_shared<nlohmann::json>();
     for (const auto &ev : events) {
         nlohmann::json tmpJson;
diff --git a/services/source/transport/include/distributed_input_source_transport.h b/services/source/transport/include/distributed_input_source_transport.h
index 88bcba6..44f1eac 100644
--- a/services/source/transport/include/distributed_input_source_transport.h
+++ b/services/source/transport/include/distributed_input_source_transport.h
@@ -147,7 +147,7 @@ private:
     std::shared_ptr<DistributedInputSourceTransport::DInputTransbaseSourceListener> statuslistener_;
     std::string mySessionName_ = "";
     std::condition_variable openSessionWaitCond_;
-    uint64_t deltaTime_ = 0;
+    uint64_t  deltaTime_ = 0;
     uint64_t deltaTimeAll_ = 0;
     uint64_t sendTime_ = 0;
     uint32_t sendNum_ = 0;
diff --git a/services/source/transport/src/distributed_input_source_transport.cpp b/services/source/transport/src/distributed_input_source_transport.cpp
index a10823b..8b85e72 100644
--- a/services/source/transport/src/distributed_input_source_transport.cpp
+++ b/services/source/transport/src/distributed_input_source_transport.cpp
@@ -41,6 +41,7 @@ namespace DistributedHardware {
 namespace DistributedInput {
 namespace {
     const char DHID_SPLIT = '.';
+    const uint64_t MSG_LATENCY_ALARM_US = 20;
 }
 DistributedInputSourceTransport::~DistributedInputSourceTransport()
 {
@@ -673,7 +674,7 @@ void DistributedInputSourceTransport::StartLatencyCount(const std::string &devic
             recvNum_ = 0;
             eachLatencyDetails_ = "";
         }
-        sendTime_ = GetCurrentTime();
+        sendTime_ = GetCurrentTimeUs();
         LatencyCount(deviceId);
         sendNum_ += 1;
         usleep(INPUT_LATENCY_DELAYTIME_US);
@@ -1101,10 +1102,13 @@ void DistributedInputSourceTransport::CalculateLatency(int32_t sessionId, const
         return;
     }
 
-    deltaTime_ = GetCurrentTime() - sendTime_;
+    deltaTime_ = GetCurrentTimeUs() - sendTime_;
     deltaTimeAll_ += deltaTime_;
     recvNum_ += 1;
     eachLatencyDetails_ += (std::to_string(deltaTime_) + DINPUT_SPLIT_COMMA);
+    if (deltaTime_ >= MSG_LATENCY_ALARM_US) {
+        DHLOGW("The RTT time between send req and receive rsp is too long: llu% us");
+    }
 }
 
 void DistributedInputSourceTransport::ReceiveSrcTSrcRelayPrepare(int32_t sessionId, const nlohmann::json &recMsg)
diff --git a/services/transportbase/src/distributed_input_transport_base.cpp b/services/transportbase/src/distributed_input_transport_base.cpp
index 1791dd5..f74e8e6 100644
--- a/services/transportbase/src/distributed_input_transport_base.cpp
+++ b/services/transportbase/src/distributed_input_transport_base.cpp
@@ -443,7 +443,7 @@ bool DistributedInputTransportBase::CheckRecivedData(const std::string &message)
 
 void DistributedInputTransportBase::OnBytesReceived(int32_t sessionId, const void *data, uint32_t dataLen)
 {
-    DHLOGI("OnBytesReceived, sessionId: %d, dataLen:%d", sessionId, dataLen);
+    DHLOGD("OnBytesReceived, sessionId: %d, dataLen:%d", sessionId, dataLen);
     if (sessionId < 0 || data == nullptr || dataLen <= 0) {
         DHLOGE("OnBytesReceived param check failed");
         return;
@@ -462,11 +462,11 @@ void DistributedInputTransportBase::OnBytesReceived(int32_t sessionId, const voi
     }
 
     std::string message(buf, buf + dataLen);
-    DHLOGI("OnBytesReceived message:%s.", SetAnonyId(message).c_str());
+    DHLOGD("OnBytesReceived message:%s.", SetAnonyId(message).c_str());
     HandleSession(sessionId, message);
 
     free(buf);
-    DHLOGI("OnBytesReceived completed");
+    DHLOGD("OnBytesReceived completed");
     return;
 }
 
@@ -491,7 +491,7 @@ void DistributedInputTransportBase::HandleSession(int32_t sessionId, const std::
             DHLOGE("srcCallback is nullptr.");
             return;
         }
-        DHLOGI("HandleSession to source.");
+        DHLOGD("HandleSession to source.");
         srcCallback_->HandleSessionData(sessionId, message);
         return;
     }
@@ -500,7 +500,7 @@ void DistributedInputTransportBase::HandleSession(int32_t sessionId, const std::
             DHLOGE("sinkCallback is nullptr.");
             return;
         }
-        DHLOGI("HandleSession to sink.");
+        DHLOGD("HandleSession to sink.");
         sinkCallback_->HandleSessionData(sessionId, message);
     }
 }
diff --git a/utils/include/dinput_utils_tool.h b/utils/include/dinput_utils_tool.h
index b41e564..15ab0ad 100644
--- a/utils/include/dinput_utils_tool.h
+++ b/utils/include/dinput_utils_tool.h
@@ -36,7 +36,7 @@ struct DevInfo {
 DevInfo GetLocalDeviceInfo();
 std::string GetLocalNetworkId();
 std::string GetUUIDBySoftBus(const std::string &networkId);
-uint64_t GetCurrentTime();
+uint64_t GetCurrentTimeUs();
 std::string SetAnonyId(const std::string &message);
 /* IsString, IsUInt32 and IsUInt64 are used to valid json key */
 bool IsBoolean(const nlohmann::json &jsonObj, const std::string &key);
diff --git a/utils/src/dinput_utils_tool.cpp b/utils/src/dinput_utils_tool.cpp
index ef8b460..ecd2273 100644
--- a/utils/src/dinput_utils_tool.cpp
+++ b/utils/src/dinput_utils_tool.cpp
@@ -95,7 +95,7 @@ std::string GetUUIDBySoftBus(const std::string &networkId)
     return (ret == DH_SUCCESS) ? std::string(uuid) : "";
 }
 
-uint64_t GetCurrentTime()
+uint64_t GetCurrentTimeUs()
 {
     constexpr int32_t usOneSecond = 1000 * 1000;
     struct timeval tv;
diff --git a/utils/test/unittest/dinput_context_test.cpp b/utils/test/unittest/dinput_context_test.cpp
index e994cbb..7c541d6 100644
--- a/utils/test/unittest/dinput_context_test.cpp
+++ b/utils/test/unittest/dinput_context_test.cpp
@@ -204,7 +204,7 @@ HWTEST_F(DInputContextTest, GetUUIDBySoftBus_001, testing::ext::TestSize.Level1)
 
 HWTEST_F(DInputContextTest, GetCurrentTime_001, testing::ext::TestSize.Level1)
 {
-    uint64_t ret = GetCurrentTime();
+    uint64_t ret = GetCurrentTimeUs();
     EXPECT_NE(0, ret);
 }