ReactNativeBridgeInstrument

Usage

Basically, you have to write a method in mm file to use these C++ functions.

#include <ReactNativeBridgeInstrument/CxxNativeModulePerfLogger.h>
// make sure `CXXFLAGS += -std=c++14` or 14 above in your Xcode building settings
#include <memory>

- (void)initializeInstrument
{
  facebook::react::CxxNativeModulePerfLogger logger = facebook::react::CxxNativeModulePerfLogger();
  facebook::react::BridgeNativeModulePerfLogger::enableLogging(std::make_unique<facebook::react::CxxNativeModulePerfLogger>(logger));
}

In Instrument

1. Open the instrument, choose Blank template in Instrument

   

2. Then , add os_signpost to current template, and start recording.

   

3. pay attention to our customed logger Volume. There are 4 parts,

• async_method_call: collect data for asynchronous methods running through JSBridge
• js_require : used to calculate time interval to initialize modules
• module : used to calculate time interval to create RCTModuleData
• sync_method_call : collect data for synchronous methods running through JSBridge