benchmark: add n-api function args benchmark

This benchmark suite is added to measure the performance of n-api
function call with various type/number of arguments. The cases in
this suite are carefully selected to efficiently show the performance
trend.

PR-URL: https://github.com/nodejs/node/pull/21555
Reviewed-By: Gabriel Schulhof <gabriel.schulhof@intel.com>
Reviewed-By: Kyle Farnung <kfarnung@microsoft.com>

5 files changed, 483 insertions, 0 deletions

diff --git a/benchmark/napi/function_args/.gitignore b/benchmark/napi/function_args/.gitignore
new file mode 100644
index 0000000000..567609b123
--- /dev/null
+++ b/benchmark/napi/function_args/.gitignore
@@ -0,0 +1 @@
+build/
diff --git a/benchmark/napi/function_args/binding.cc b/benchmark/napi/function_args/binding.cc
new file mode 100644
index 0000000000..11eb394a6a
--- /dev/null
+++ b/benchmark/napi/function_args/binding.cc
@@ -0,0 +1,142 @@
+#include <v8.h>
+#include <node.h>
+#include <assert.h>
+
+using v8::Isolate;
+using v8::Context;
+using v8::Local;
+using v8::MaybeLocal;
+using v8::Value;
+using v8::Number;
+using v8::String;
+using v8::Object;
+using v8::Array;
+using v8::ArrayBufferView;
+using v8::ArrayBuffer;
+using v8::FunctionCallbackInfo;
+
+void CallWithString(const FunctionCallbackInfo<Value>& args) {
+  assert(args.Length() == 1 && args[0]->IsString());
+  if (args.Length() == 1 && args[0]->IsString()) {
+    Local<String> str = args[0].As<String>();
+    const int32_t length = str->Utf8Length() + 1;
+    char* buf = new char[length];
+    str->WriteUtf8(buf, length);
+    delete [] buf;
+  }
+}
+
+void CallWithArray(const FunctionCallbackInfo<Value>& args) {
+  assert(args.Length() == 1 && args[0]->IsArray());
+  if (args.Length() == 1 && args[0]->IsArray()) {
+    const Local<Array> array = args[0].As<Array>();
+    uint32_t length = array->Length();
+    for (uint32_t i = 0; i < length; ++ i) {
+      Local<Value> v;
+      v = array->Get(i);
+    }
+  }
+}
+
+void CallWithNumber(const FunctionCallbackInfo<Value>& args) {
+  assert(args.Length() == 1 && args[0]->IsNumber());
+  if (args.Length() == 1 && args[0]->IsNumber()) {
+    args[0].As<Number>()->Value();
+  }
+}
+
+void CallWithObject(const FunctionCallbackInfo<Value>& args) {
+  Isolate* isolate = args.GetIsolate();
+  Local<Context> context = isolate->GetCurrentContext();
+
+  assert(args.Length() == 1 && args[0]->IsObject());
+  if (args.Length() == 1 && args[0]->IsObject()) {
+    Local<Object> obj = args[0].As<Object>();
+
+    MaybeLocal<String> map_key = String::NewFromUtf8(isolate,
+        "map", v8::NewStringType::kNormal);
+    assert(!map_key.IsEmpty());
+    MaybeLocal<Value> map_maybe = obj->Get(context,
+        map_key.ToLocalChecked());
+    assert(!map_maybe.IsEmpty());
+    Local<Value> map;
+    map = map_maybe.ToLocalChecked();
+
+    MaybeLocal<String> operand_key = String::NewFromUtf8(isolate,
+        "operand", v8::NewStringType::kNormal);
+    assert(!operand_key.IsEmpty());
+    MaybeLocal<Value> operand_maybe = obj->Get(context,
+        operand_key.ToLocalChecked());
+    assert(!operand_maybe.IsEmpty());
+    Local<Value> operand;
+    operand = operand_maybe.ToLocalChecked();
+
+    MaybeLocal<String> data_key = String::NewFromUtf8(isolate,
+        "data", v8::NewStringType::kNormal);
+    assert(!data_key.IsEmpty());
+    MaybeLocal<Value> data_maybe = obj->Get(context,
+        data_key.ToLocalChecked());
+    assert(!data_maybe.IsEmpty());
+    Local<Value> data;
+    data = data_maybe.ToLocalChecked();
+
+    MaybeLocal<String> reduce_key = String::NewFromUtf8(isolate,
+        "reduce", v8::NewStringType::kNormal);
+    assert(!reduce_key.IsEmpty());
+    MaybeLocal<Value> reduce_maybe = obj->Get(context,
+        reduce_key.ToLocalChecked());
+    assert(!reduce_maybe.IsEmpty());
+    Local<Value> reduce;
+    reduce = reduce_maybe.ToLocalChecked();
+  }
+}
+
+void CallWithTypedarray(const FunctionCallbackInfo<Value>& args) {
+  assert(args.Length() == 1 && args[0]->IsArrayBufferView());
+  if (args.Length() == 1 && args[0]->IsArrayBufferView()) {
+    assert(args[0]->IsArrayBufferView());
+    Local<ArrayBufferView> view = args[0].As<ArrayBufferView>();
+    const size_t byte_offset = view->ByteOffset();
+    const size_t byte_length = view->ByteLength();
+    assert(byte_length > 0);
+    assert(view->HasBuffer());
+    Local<ArrayBuffer> buffer;
+    buffer = view->Buffer();
+    ArrayBuffer::Contents contents;
+    contents = buffer->GetContents();
+    const uint32_t* data = reinterpret_cast<uint32_t*>(
+        static_cast<uint8_t*>(contents.Data()) + byte_offset);
+    assert(data);
+  }
+}
+
+void CallWithArguments(const FunctionCallbackInfo<Value>& args) {
+  assert(args.Length() > 1 && args[0]->IsNumber());
+  if (args.Length() > 1 && args[0]->IsNumber()) {
+    int32_t loop = args[0].As<v8::Uint32>()->Value();
+    for (int32_t i = 1; i < loop; ++i) {
+      assert(i < args.Length());
+      assert(args[i]->IsUint32());
+      args[i].As<v8::Uint32>()->Value();
+    }
+  }
+}
+
+void Initialize(Local<Object> target) {
+  NODE_SET_METHOD(target, "callWithString", CallWithString);
+  NODE_SET_METHOD(target, "callWithLongString", CallWithString);
+
+  NODE_SET_METHOD(target, "callWithArray", CallWithArray);
+  NODE_SET_METHOD(target, "callWithLargeArray", CallWithArray);
+  NODE_SET_METHOD(target, "callWithHugeArray", CallWithArray);
+
+  NODE_SET_METHOD(target, "callWithNumber", CallWithNumber);
+  NODE_SET_METHOD(target, "callWithObject", CallWithObject);
+  NODE_SET_METHOD(target, "callWithTypedarray", CallWithTypedarray);
+
+  NODE_SET_METHOD(target, "callWith10Numbers", CallWithArguments);
+  NODE_SET_METHOD(target, "callWith100Numbers", CallWithArguments);
+  NODE_SET_METHOD(target, "callWith1000Numbers", CallWithArguments);
+}
+
+NODE_MODULE(NODE_GYP_MODULE_NAME, Initialize)
diff --git a/benchmark/napi/function_args/binding.gyp b/benchmark/napi/function_args/binding.gyp
new file mode 100644
index 0000000000..ac122ed1a0
--- /dev/null
+++ b/benchmark/napi/function_args/binding.gyp
@@ -0,0 +1,12 @@
+{
+  'targets': [
+    {
+      'target_name': 'napi_binding',
+      'sources': [ 'napi_binding.c' ]
+    },
+    {
+      'target_name': 'binding',
+      'sources': [ 'binding.cc' ]
+    }
+  ]
+}
diff --git a/benchmark/napi/function_args/index.js b/benchmark/napi/function_args/index.js
new file mode 100644
index 0000000000..c8f281a342
--- /dev/null
+++ b/benchmark/napi/function_args/index.js
@@ -0,0 +1,99 @@
+// show the difference between calling a V8 binding C++ function
+// relative to a comparable N-API C++ function,
+// in various types/numbers of arguments.
+// Reports n of calls per second.
+'use strict';
+
+const common = require('../../common.js');
+
+let v8;
+let napi;
+
+try {
+  v8 = require('./build/Release/binding');
+} catch (err) {
+  // eslint-disable-next-line no-path-concat
+  console.error(__filename + ': V8 Binding failed to load');
+  process.exit(0);
+}
+
+try {
+  napi = require('./build/Release/napi_binding');
+} catch (err) {
+  // eslint-disable-next-line no-path-concat
+  console.error(__filename + ': NAPI-Binding failed to load');
+  process.exit(0);
+}
+
+const argsTypes = ['String', 'Number', 'Object', 'Array', 'Typedarray',
+                   '10Numbers', '100Numbers', '1000Numbers'];
+
+const generateArgs = (argType) => {
+  let args = [];
+
+  if (argType === 'String') {
+    args.push('The quick brown fox jumps over the lazy dog');
+  } else if (argType === 'LongString') {
+    args.push(Buffer.alloc(32768, '42').toString());
+  } else if (argType === 'Number') {
+    args.push(Math.floor(314158964 * Math.random()));
+  } else if (argType === 'Object') {
+    args.push({
+      map: 'add',
+      operand: 10,
+      data: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10],
+      reduce: 'add',
+    });
+  } else if (argType === 'Array') {
+    const arr = [];
+    for (let i = 0; i < 50; ++i) {
+      arr.push(Math.random() * 10e9);
+    }
+    args.push(arr);
+  } else if (argType === 'Typedarray') {
+    const arr = new Uint32Array(1000);
+    for (let i = 0; i < 1000; ++i) {
+      arr[i] = Math.random() * 4294967296;
+    }
+    args.push(arr);
+  } else if (argType === '10Numbers') {
+    args.push(10);
+    for (let i = 0; i < 9; ++i) {
+      args = [...args, ...generateArgs('Number')];
+    }
+  } else if (argType === '100Numbers') {
+    args.push(100);
+    for (let i = 0; i < 99; ++i) {
+      args = [...args, ...generateArgs('Number')];
+    }
+  } else if (argType === '1000Numbers') {
+    args.push(1000);
+    for (let i = 0; i < 999; ++i) {
+      args = [...args, ...generateArgs('Number')];
+    }
+  }
+
+  return args;
+};
+
+const bench = common.createBenchmark(main, {
+  type: argsTypes,
+  engine: ['v8', 'napi'],
+  n: [1, 1e1, 1e2, 1e3, 1e4, 1e5],
+});
+
+function main({ n, engine, type }) {
+  const bindings = engine === 'v8' ? v8 : napi;
+  const methodName = 'callWith' + type;
+  const fn = bindings[methodName];
+
+  if (fn) {
+    const args = generateArgs(type);
+
+    bench.start();
+    for (var i = 0; i < n; i++) {
+      fn.apply(null, args);
+    }
+    bench.end(n);
+  }
+}
diff --git a/benchmark/napi/function_args/napi_binding.c b/benchmark/napi/function_args/napi_binding.c
new file mode 100644
index 0000000000..b697644ca4
--- /dev/null
+++ b/benchmark/napi/function_args/napi_binding.c
@@ -0,0 +1,229 @@
+#include <node_api.h>
+#include <assert.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+static napi_value CallWithString(napi_env env, napi_callback_info info) {
+  napi_status status;
+
+  size_t argc = 1;
+  napi_value args[1];
+  status = napi_get_cb_info(env, info, &argc, args, NULL, NULL);
+  assert(status == napi_ok);
+
+  napi_valuetype types[1];
+  status = napi_typeof(env, args[0], types);
+  assert(status == napi_ok);
+
+  assert(types[0] == napi_string);
+  if (types[0] == napi_string) {
+    size_t len = 0;
+    // Get the length
+    status = napi_get_value_string_utf8(env, args[0], NULL, 0, &len);
+    assert(status == napi_ok);
+    char* buf = (char*)malloc(len + 1);
+    status = napi_get_value_string_utf8(env, args[0], buf, len + 1, &len);
+    assert(status == napi_ok);
+    free(buf);
+  }
+
+  return NULL;
+}
+
+static napi_value CallWithArray(napi_env env, napi_callback_info info) {
+  napi_status status;
+
+  size_t argc = 1;
+  napi_value args[1];
+  status = napi_get_cb_info(env, info, &argc, args, NULL, NULL);
+  assert(status == napi_ok);
+
+  napi_value array = args[0];
+  bool is_array = false;
+  status = napi_is_array(env, array, &is_array);
+  assert(status == napi_ok);
+
+  assert(is_array);
+  if (is_array) {
+    uint32_t length;
+    status = napi_get_array_length(env, array, &length);
+    assert(status == napi_ok);
+
+    for (uint32_t i = 0; i < length; ++i) {
+      napi_value v;
+      status = napi_get_element(env, array, i, &v);
+      assert(status == napi_ok);
+    }
+  }
+
+  return NULL;
+}
+
+static napi_value CallWithNumber(napi_env env, napi_callback_info info) {
+  napi_status status;
+
+  size_t argc = 1;
+  napi_value args[1];
+  status = napi_get_cb_info(env, info, &argc, args, NULL, NULL);
+  assert(status == napi_ok);
+
+  napi_valuetype types[1];
+  status = napi_typeof(env, args[0], types);
+  assert(status == napi_ok);
+
+  assert(types[0] == napi_number);
+  if (types[0] == napi_number) {
+    double value = 0.0;
+    status = napi_get_value_double(env, args[0], &value);
+    assert(status == napi_ok);
+  }
+
+  return NULL;
+}
+
+static napi_value CallWithObject(napi_env env, napi_callback_info info) {
+  napi_status status;
+
+  size_t argc = 1;
+  napi_value args[1];
+  status = napi_get_cb_info(env, info, &argc, args, NULL, NULL);
+  assert(status == napi_ok);
+
+  napi_valuetype types[1];
+  status = napi_typeof(env, args[0], types);
+  assert(status == napi_ok);
+
+  assert(argc == 1 && types[0] == napi_object);
+  if (argc == 1 && types[0] == napi_object) {
+    napi_value value;
+
+    status = napi_get_named_property(env, args[0], "map", &value);
+    assert(status == napi_ok);
+
+    status = napi_get_named_property(env, args[0], "operand", &value);
+    assert(status == napi_ok);
+
+    status = napi_get_named_property(env, args[0], "data", &value);
+    assert(status == napi_ok);
+
+    status = napi_get_named_property(env, args[0], "reduce", &value);
+    assert(status == napi_ok);
+  }
+
+  return NULL;
+}
+
+static napi_value CallWithTypedarray(napi_env env, napi_callback_info info) {
+  napi_status status;
+
+  size_t argc = 1;
+  napi_value args[1];
+  status = napi_get_cb_info(env, info, &argc, args, NULL, NULL);
+  assert(status == napi_ok);
+
+  bool is_typedarray = false;
+  status = napi_is_typedarray(env, args[0], &is_typedarray);
+  assert(status == napi_ok);
+
+  assert(is_typedarray);
+  if (is_typedarray) {
+    napi_typedarray_type type;
+    napi_value input_buffer;
+    size_t byte_offset = 0;
+    size_t length = 0;
+    status = napi_get_typedarray_info(env, args[0], &type, &length,
+        NULL, &input_buffer, &byte_offset);
+    assert(status == napi_ok);
+    assert(length > 0);
+
+    void* data = NULL;
+    size_t byte_length = 0;
+    status = napi_get_arraybuffer_info(env,
+        input_buffer, &data, &byte_length);
+    assert(status == napi_ok);
+
+    uint32_t* input_integers = (uint32_t*)((uint8_t*)(data) + byte_offset);
+    assert(input_integers);
+  }
+
+  return NULL;
+}
+
+static napi_value CallWithArguments(napi_env env, napi_callback_info info) {
+  napi_status status;
+
+  size_t argc = 1;
+  napi_value args[1000];
+  // Get the length
+  status = napi_get_cb_info(env, info, &argc, NULL, NULL, NULL);
+  assert(status == napi_ok);
+
+  status = napi_get_cb_info(env, info, &argc, args, NULL, NULL);
+  assert(status == napi_ok);
+  assert(argc <= 1000);
+
+  napi_valuetype types[1];
+  status = napi_typeof(env, args[0], types);
+  assert(status == napi_ok);
+
+  assert(argc > 1 && types[0] == napi_number);
+  if (argc > 1 && types[0] == napi_number) {
+    uint32_t loop = 0;
+    status = napi_get_value_uint32(env, args[0], &loop);
+    assert(status == napi_ok);
+
+    for (uint32_t i = 1; i < loop; ++i) {
+      assert(i < argc);
+      status = napi_typeof(env, args[i], types);
+      assert(status == napi_ok);
+      assert(types[0] == napi_number);
+
+      uint32_t value = 0;
+      status = napi_get_value_uint32(env, args[i], &value);
+      assert(status == napi_ok);
+    }
+  }
+
+  return NULL;
+}
+
+
+#define EXPORT_FUNC(env, exports, name, func)       \
+  do {                                              \
+    napi_status status;                             \
+    napi_value js_func;                             \
+    status = napi_create_function((env),            \
+                                  (name),           \
+                                  NAPI_AUTO_LENGTH, \
+                                  (func),           \
+                                  NULL,             \
+                                  &js_func);        \
+    assert(status == napi_ok);                      \
+    status = napi_set_named_property((env),         \
+                                     (exports),     \
+                                     (name),        \
+                                     js_func);      \
+    assert(status == napi_ok);                      \
+  } while (0);
+
+
+NAPI_MODULE_INIT() {
+  EXPORT_FUNC(env, exports, "callWithString", CallWithString);
+  EXPORT_FUNC(env, exports, "callWithLongString", CallWithString);
+
+  EXPORT_FUNC(env, exports, "callWithArray", CallWithArray);
+  EXPORT_FUNC(env, exports, "callWithLargeArray", CallWithArray);
+  EXPORT_FUNC(env, exports, "callWithHugeArray", CallWithArray);
+
+  EXPORT_FUNC(env, exports, "callWithNumber", CallWithNumber);
+
+  EXPORT_FUNC(env, exports, "callWithObject", CallWithObject);
+  EXPORT_FUNC(env, exports, "callWithTypedarray", CallWithTypedarray);
+
+  EXPORT_FUNC(env, exports, "callWith10Numbers", CallWithArguments);
+  EXPORT_FUNC(env, exports, "callWith100Numbers", CallWithArguments);
+  EXPORT_FUNC(env, exports, "callWith1000Numbers", CallWithArguments);
+
+  return exports;
+}