add more systraces

Reviewed By: alexeylang

Differential Revision: D4998351

fbshipit-source-id: a5c3ad829400b23aec49a2b919ab3fc7fc20c07b

ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManager.java

@@ -18,11 +18,9 @@ import java.util.HashSet;
 import java.util.List;
 
 import android.app.Activity;
-import android.app.Application;
 import android.content.Context;
 import android.content.Intent;
 import android.net.Uri;
-import android.os.Bundle;
 import android.os.Process;
 import android.view.View;
 
@@ -40,13 +38,10 @@ import com.facebook.react.bridge.ReactApplicationContext;
 import com.facebook.react.bridge.ReactContext;
 import com.facebook.react.bridge.ReactMarker;
 import com.facebook.react.bridge.ReactMarkerConstants;
-import com.facebook.react.bridge.WritableMap;
-import com.facebook.react.bridge.WritableNativeMap;
 import com.facebook.react.bridge.queue.ReactQueueConfigurationSpec;
 import com.facebook.react.common.LifecycleState;
 import com.facebook.react.common.ReactConstants;
 import com.facebook.react.common.annotations.VisibleForTesting;
-import com.facebook.react.cxxbridge.Arguments;
 import com.facebook.react.cxxbridge.CatalystInstanceImpl;
 import com.facebook.react.cxxbridge.JSBundleLoader;
 import com.facebook.react.cxxbridge.JSCJavaScriptExecutor;
@@ -839,12 +834,20 @@ public class ReactInstanceManager {
     }
 
     UIManagerModule uiManagerModule = catalystInstance.getNativeModule(UIManagerModule.class);
-    int rootTag = uiManagerModule.addMeasuredRootView(rootView);
+    final int rootTag = uiManagerModule.addMeasuredRootView(rootView);
     rootView.setRootViewTag(rootTag);
     rootView.runApplication();
+    Systrace.beginAsyncSection(
+      TRACE_TAG_REACT_JAVA_BRIDGE,
+      "pre_rootView.onAttachedToReactInstance",
+      rootTag);
     UiThreadUtil.runOnUiThread(new Runnable() {
       @Override
       public void run() {
+        Systrace.endAsyncSection(
+          TRACE_TAG_REACT_JAVA_BRIDGE,
+          "pre_rootView.onAttachedToReactInstance",
+          rootTag);
         rootView.onAttachedToReactInstance();
       }
     });

ReactAndroid/src/main/java/com/facebook/react/ReactRootView.java

@@ -42,6 +42,9 @@ import com.facebook.react.uimanager.RootView;
 import com.facebook.react.uimanager.SizeMonitoringFrameLayout;
 import com.facebook.react.uimanager.UIManagerModule;
 import com.facebook.react.uimanager.events.EventDispatcher;
+import com.facebook.systrace.Systrace;
+
+import static com.facebook.systrace.Systrace.TRACE_TAG_REACT_JAVA_BRIDGE;
 
 /**
  * Default root view for catalyst apps. Provides the ability to listen for size changes so that a UI
@@ -267,26 +270,31 @@ public class ReactRootView extends SizeMonitoringFrameLayout implements RootView
    * same rootTag, which will re-render the application from the root.
    */
   /* package */ void runApplication() {
-    if (mReactInstanceManager == null || !mIsAttachedToInstance) {
+    Systrace.beginSection(TRACE_TAG_REACT_JAVA_BRIDGE, "ReactRootView.runApplication");
-      return;
+    try {
+      if (mReactInstanceManager == null || !mIsAttachedToInstance) {
+        return;
+      }
+
+      ReactContext reactContext = mReactInstanceManager.getCurrentReactContext();
+      if (reactContext == null) {
+        return;
+      }
+
+      CatalystInstance catalystInstance = reactContext.getCatalystInstance();
+
+      WritableNativeMap appParams = new WritableNativeMap();
+      appParams.putDouble("rootTag", getRootViewTag());
+      @Nullable Bundle appProperties = getAppProperties();
+      if (appProperties != null) {
+        appParams.putMap("initialProps", Arguments.fromBundle(appProperties));
+      }
+
+      String jsAppModuleName = getJSModuleName();
+      catalystInstance.getJSModule(AppRegistry.class).runApplication(jsAppModuleName, appParams);
+    } finally {
+      Systrace.endSection(TRACE_TAG_REACT_JAVA_BRIDGE);
     }
-
-    ReactContext reactContext = mReactInstanceManager.getCurrentReactContext();
-    if (reactContext == null) {
-      return;
-    }
-
-    CatalystInstance catalystInstance = reactContext.getCatalystInstance();
-
-    WritableNativeMap appParams = new WritableNativeMap();
-    appParams.putDouble("rootTag", getRootViewTag());
-    @Nullable Bundle appProperties = getAppProperties();
-    if (appProperties != null) {
-      appParams.putMap("initialProps", Arguments.fromBundle(appProperties));
-    }
-
-    String jsAppModuleName = getJSModuleName();
-    catalystInstance.getJSModule(AppRegistry.class).runApplication(jsAppModuleName, appParams);
   }
 
   /**

ReactAndroid/src/main/java/com/facebook/react/uimanager/UIManagerModule.java

@@ -184,6 +184,9 @@ public class UIManagerModule extends ReactContextBaseJavaModule implements
    * NB: this method is horribly not-thread-safe.
    */
   public int addMeasuredRootView(final SizeMonitoringFrameLayout rootView) {
+    Systrace.beginSection(
+      Systrace.TRACE_TAG_REACT_JAVA_BRIDGE,
+      "UIManagerModule.addMeasuredRootView");
     final int tag = mNextRootViewTag;
     mNextRootViewTag += ROOT_VIEW_TAG_INCREMENT;
 
@@ -220,6 +223,7 @@ public class UIManagerModule extends ReactContextBaseJavaModule implements
         }
       });
 
+    Systrace.endSection(Systrace.TRACE_TAG_REACT_JAVA_BRIDGE);
     return tag;
   }