diff --git a/frameworks/native/inputmethod_controller/src/input_method_controller.cpp b/frameworks/native/inputmethod_controller/src/input_method_controller.cpp
index 4ba7568266398a56c8009e7f8ed5ede0d4c22b55..868b477a9024f688b820a0cecdd7831f1e345371 100644
--- a/frameworks/native/inputmethod_controller/src/input_method_controller.cpp
+++ b/frameworks/native/inputmethod_controller/src/input_method_controller.cpp
@@ -53,13 +53,19 @@ std::mutex InputMethodController::instanceLock_;
 std::mutex InputMethodController::logLock_;
 int InputMethodController::keyEventCountInPeriod_ = 0;
 std::chrono::system_clock::time_point InputMethodController::startLogTime_ = system_clock::now();
+std::mutex InputMethodController::printTextChangeMutex_;
+int32_t InputMethodController::textChangeCountInPeriod_ = 0;
+std::chrono::steady_clock::time_point InputMethodController::textChangeStartLogTime_ = steady_clock::now();
 constexpr int32_t LOOP_COUNT = 5;
 constexpr int32_t LOG_MAX_TIME = 20;
+constexpr int32_t LOG_INSERT_MAX_TIME = 20; // 20s
+constexpr int32_t LOG_INSERT_MIN_TIME = 5; // 5s
 constexpr int64_t DELAY_TIME = 100;
 constexpr int32_t ACE_DEAL_TIME_OUT = 200;
 constexpr int32_t MAX_PLACEHOLDER_SIZE = 255; // 256 utf16 char
 constexpr int32_t MAX_ABILITY_NAME_SIZE = 127; // 127 utf16 char
 static constexpr int32_t MAX_TIMEOUT = 2500;
+constexpr int64_t DISPATCH_KEYBOARD_TIME_OUT = 5; // 5ms
 constexpr size_t MAX_AGENT_NUMBER = 2;
 const std::string IME_MIRROR_NAME = "proxyIme_IME_MIRROR";
 InputMethodController::InputMethodController()
@@ -959,6 +965,7 @@ void InputMethodController::PrintKeyEventLog()
 
 int32_t InputMethodController::DispatchKeyEvent(std::shared_ptr<MMI::KeyEvent> keyEvent, KeyEventCallback callback)
 {
+    int64_t startTime = duration_cast<milliseconds>(system_clock::now().time_since_epoch()).count();
     PrintKeyEventLog();
     KeyEventInfo keyEventInfo = { std::chrono::system_clock::now(), keyEvent };
     keyEventQueue_.Push(keyEventInfo);
@@ -1000,6 +1007,10 @@ int32_t InputMethodController::DispatchKeyEvent(std::shared_ptr<MMI::KeyEvent> k
         keyEventRetHandler_.RemoveKeyEventCbInfo(cbId);
     }
     keyEventQueue_.Pop();
+    int64_t endTime = duration_cast<milliseconds>(system_clock::now().time_since_epoch()).count();
+    if (endTime - startTime > DISPATCH_KEYBOARD_TIME_OUT) {
+        IMSA_HILOGW("DispatchKeyEvent timeout: [%{public}" PRId64 ", %{public}" PRId64 "].", startTime, endTime);
+    }
     return ret;
 }
 
@@ -1232,6 +1243,11 @@ void InputMethodController::OnInputStop(bool isStopInactiveClient, sptr<IRemoteO
         selectNewBegin_ = INVALID_VALUE;
         selectNewEnd_ = INVALID_VALUE;
     }
+    auto now = steady_clock::now();
+    if (std::chrono::duration_cast<seconds>(now - textChangeStartLogTime_).count() > LOG_INSERT_MIN_TIME &&
+        std::chrono::duration_cast<seconds>(now - textChangeStartLogTime_).count() < LOG_INSERT_MAX_TIME) {
+        IMSA_HILOGW("unbind before insertText PrintTextChangeLogCount: %{public}d !", textChangeCountInPeriod_);
+    }
     if (proxy == nullptr) {
         IMSA_HILOGD("proxy is nullptr.");
         return;
@@ -1396,7 +1412,7 @@ int32_t InputMethodController::InsertText(const std::u16string &text)
         IMSA_HILOGD("ACE InsertText.");
         listener->InsertTextV2(text);
     }
-
+    PrintTextChangeLog();
     PrintLogIfAceTimeout(start);
     return ErrorCode::NO_ERROR;
 }
@@ -1619,6 +1635,20 @@ void InputMethodController::PrintLogIfAceTimeout(int64_t start)
     }
 }
 
+void InputMethodController::PrintTextChangeLog()
+{
+    std::lock_guard<std::mutex> lock(printTextChangeMutex_);
+    auto now = steady_clock::now();
+    if (textChangeCountInPeriod_ == 0) {
+        textChangeStartLogTime_ = now;
+    }
+    textChangeCountInPeriod_++;
+    if (std::chrono::duration_cast<seconds>(now - textChangeStartLogTime_).count() >= LOG_INSERT_MAX_TIME) {
+        IMSA_HILOGW("PrintTextChangeLogCount: %{public}d, ACE_InsertText success!", textChangeCountInPeriod_);
+        textChangeCountInPeriod_ = 0;
+    }
+}
+
 int32_t InputMethodController::ReceivePrivateCommand(
     const std::unordered_map<std::string, PrivateDataValue> &privateCommand)
 {
@@ -1692,6 +1722,7 @@ int32_t InputMethodController::SetPreviewTextInner(const std::string &text, cons
         InputMethodSyncTrace aceTracer("ACE_SetPreviewText");
         ret = listener->SetPreviewTextV2(Str8ToStr16(text), range);
     }
+    PrintTextChangeLog();
     PrintLogIfAceTimeout(start);
     if (ret != ErrorCode::NO_ERROR) {
         IMSA_HILOGE("failed to SetPreviewText: %{public}d!", ret);
diff --git a/frameworks/native/inputmethod_controller/src/input_method_utils.cpp b/frameworks/native/inputmethod_controller/src/input_method_utils.cpp
index 080a217fc7665491f8be91bc5da7b97a7bbe8e7b..fd4a01f401462d1af8c935f6c0624a54c8650901 100644
--- a/frameworks/native/inputmethod_controller/src/input_method_utils.cpp
+++ b/frameworks/native/inputmethod_controller/src/input_method_utils.cpp
@@ -240,7 +240,7 @@ bool Value::Marshalling(Parcel &out) const
     return false;
     }
     if (valueMap.size() == 0) {
-        IMSA_HILOGE("valueMap size is zero!");
+        IMSA_HILOGD("valueMap size is zero!");
         return true;
     }
     for (auto& it : valueMap) {
diff --git a/interfaces/inner_api/inputmethod_controller/include/input_method_controller.h b/interfaces/inner_api/inputmethod_controller/include/input_method_controller.h
index 1ea657d0d5a69e01b25261407c1185b19d9c47bd..a2183f3bf441c2d6e0519a9416b558cdaea96d36 100644
--- a/interfaces/inner_api/inputmethod_controller/include/input_method_controller.h
+++ b/interfaces/inner_api/inputmethod_controller/include/input_method_controller.h
@@ -1025,6 +1025,7 @@ private:
     void SetAgent(const sptr<IRemoteObject> &agentObject, const std::string &bundleName);
     std::shared_ptr<IInputMethodAgent> GetAgent();
     void PrintLogIfAceTimeout(int64_t start);
+    void PrintTextChangeLog();
     void PrintKeyEventLog();
     std::shared_ptr<MsgHandlerCallbackInterface> GetMsgHandlerCallback();
     int32_t IsValidTextConfig(const TextConfig &textConfig);
@@ -1079,6 +1080,9 @@ private:
     static std::mutex logLock_;
     static int keyEventCountInPeriod_;
     static std::chrono::system_clock::time_point startLogTime_;
+    static std::mutex printTextChangeMutex_;
+    static int32_t textChangeCountInPeriod_;
+    static std::chrono::steady_clock::time_point textChangeStartLogTime_;
 
     std::atomic_bool isEditable_{ false };
     std::atomic_bool isBound_{ false };
diff --git a/services/src/input_method_system_ability.cpp b/services/src/input_method_system_ability.cpp
index 694bcb94ff63ec9cb25e26a7e9abc3cbd59cc40b..f9c7d33d15f5752e1d4c5d5ef4de51e94d97e8b4 100644
--- a/services/src/input_method_system_ability.cpp
+++ b/services/src/input_method_system_ability.cpp
@@ -677,9 +677,12 @@ int32_t InputMethodSystemAbility::StartInputInner(
 {
     auto userId = GetCallingUserId();
     AccessTokenID tokenId = IPCSkeleton::GetCallingTokenID();
-    if (!identityChecker_->IsBroker(tokenId) && !identityChecker_->IsFocused(IPCSkeleton::GetCallingPid(), tokenId,
-        IdentityChecker::INVALID_PID, true, inputClientInfo.config.abilityToken)) {
-        return ErrorCode::ERROR_CLIENT_NOT_FOCUSED;
+    if (!identityChecker_->IsFocused(IPCSkeleton::GetCallingPid(), tokenId, IdentityChecker::INVALID_PID, true,
+        inputClientInfo.config.abilityToken)) {
+        if (!identityChecker_->IsBroker(tokenId)) {
+            return ErrorCode::ERROR_CLIENT_NOT_FOCUSED;
+        }
+        IMSA_HILOGW("is broker attach!");
     }
     auto session = UserSessionManager::GetInstance().GetUserSession(userId);
     if (session == nullptr) {