Log time to prepare native config

Reviewed By: @jspahrsummers

Differential Revision: D2517033

fb-gh-sync-id: fd560304f163b0ab9be592024e2a9b793fb990bc

Author: alexeylang

React/Base/RCTBatchedBridge.m

@@ -148,7 +148,9 @@ - (void)start
 
     dispatch_group_async(setupJSExecutorAndModuleConfig, bridgeQueue, ^{
       if (weakSelf.isValid) {
+        RCTPerformanceLoggerStart(RCTPLNativeModulePrepareConfig);
         config = [weakSelf moduleConfig];
+        RCTPerformanceLoggerEnd(RCTPLNativeModulePrepareConfig);
       }
     });
 

React/Base/RCTPerformanceLogger.h

@@ -15,6 +15,7 @@ typedef NS_ENUM(NSUInteger, RCTPLTag) {
   RCTPLScriptDownload = 0,
   RCTPLScriptExecution,
   RCTPLNativeModuleInit,
+  RCTPLNativeModulePrepareConfig,
   RCTPLNativeModuleInjectConfig,
   RCTPLTTI,
   RCTPLSize

React/Base/RCTPerformanceLogger.m

@@ -33,6 +33,8 @@ void RCTPerformanceLoggerEnd(RCTPLTag tag)
     @(RCTPLData[RCTPLScriptExecution][1]),
     @(RCTPLData[RCTPLNativeModuleInit][0]),
     @(RCTPLData[RCTPLNativeModuleInit][1]),
+    @(RCTPLData[RCTPLNativeModulePrepareConfig][0]),
+    @(RCTPLData[RCTPLNativeModulePrepareConfig][1]),
     @(RCTPLData[RCTPLNativeModuleInjectConfig][0]),
     @(RCTPLData[RCTPLNativeModuleInjectConfig][1]),
     @(RCTPLData[RCTPLTTI][0]),
@@ -76,6 +78,7 @@ - (void)sendTimespans
       @"ScriptDownload",
       @"ScriptExecution",
       @"NativeModuleInit",
+      @"NativeModulePrepareConfig",
       @"NativeModuleInjectConfig",
       @"TTI",
     ],