native call js pref test

test/src/perf.cpp

@@ -8,6 +8,7 @@
 //#include <JavaScriptCore/JSObject.h>
 //#include <JavaScriptCore/JSArray.h>
 #include <JavaScriptCore/APICast.h>
+#include <chrono>
 
 using namespace JSC;
 
@@ -76,29 +77,31 @@ int main() {
  for(var i = 0; i < LOOP; ++i) {
  PublicApiAdd(1, 2)
  }
- print(`public elapsed = ${Date.now() - start}`);
+ print(`js call native (public) elapsed = ${Date.now() - start}`);
  
  var start = Date.now();
  for(var i = 0; i < LOOP; ++i) {
  PrivateApiAdd(1, 2)
  }
- print(`private elapsed = ${Date.now() - start}`);
+ print(`js call native (private) elapsed = ${Date.now() - start}`);
  
  function JsAdd(a, b) {
- print(`a=${a}, b=${b}`);
+ //print(`a=${a}, b=${b}`);
  return a + b;
  }
  )delimiter");
  JSStringRef file = JSStringCreateWithUTF8CString("");
  JSValueRef exception = nullptr;
  JSValueRef value = JSEvaluateScript(context, code, 0, file, 1, &exception);
 
+ const int LOOP = 1000 * 1000 * 100;
  if (!exception) {
  JSStringRelease(functionName);
  functionName = JSStringCreateWithUTF8CString("JsAdd");
  JSValueRef function = JSObjectGetProperty(context, JSContextGetGlobalObject(context), functionName, NULL);
 
- { // call by public api
+ auto start = std::chrono::high_resolution_clock::now();
+ for(int i = 0; i < LOOP; ++i) { // call by public api
  JSValueRef args[2];
  args[0] = JSValueMakeNumber(context, 1); // a
  args[1] = JSValueMakeNumber(context, 2); // b
@@ -107,11 +110,22 @@ int main() {
  value = JSObjectCallAsFunction(context, (JSObjectRef)function, NULL, 2, args, &exception);
  if (!exception) {
  double sum = JSValueToNumber(context, value, NULL);
- printf("Result(public): %f\n", sum);
+ //printf("Result(public): %f\n", sum);
+ (void)sum;
  }
  }
+ auto duration = std::chrono::duration_cast<std::chrono::microseconds>(std::chrono::high_resolution_clock::now() - start);
 
- if (!exception) { // private api
+ printf("native call js (public) elapsed = %d\n", (int)(duration.count() / 1000));
+
+ start = std::chrono::high_resolution_clock::now();
+
+ if (exception) {
+ fprintf(stderr, "call js public throw \n");
+ return 0;
+ }
+
+ for(int i = 0; i < LOOP; ++i) { // private api
  JSC::JSValue funcValue = toJS(function);
  auto callData = JSC::getCallData(funcValue);
  if (UNLIKELY(callData.type == JSC::CallData::Type::None)) {
@@ -140,9 +154,14 @@ int main() {
  scope.clearException();
  } else if (jsResult.isNumber()) {
  double sum = jsResult.asNumber();
- printf("Result(private): %f\n", sum);
+ //printf("Result(private): %f\n", sum);
+ (void)sum;
  }
  }
+
+ duration = std::chrono::duration_cast<std::chrono::microseconds>(std::chrono::high_resolution_clock::now() - start);
+
+ printf("native call js (private) elapsed = %d\n", (int)(duration.count() / 1000));
  }
 
  if (exception) {