Benchmark for memory_view

2 files changed, 75 insertions, 0 deletions

diff --git a/tests/embind/embind.benchmark.js b/tests/embind/embind.benchmark.js
index 7b20db88..a21b8392 100644
--- a/tests/embind/embind.benchmark.js
+++ b/tests/embind/embind.benchmark.js
@@ -248,3 +248,27 @@ function _call_through_interface1() {
     Module.print("C++ -> JS std::wstring through interface " + N + " iters: " + elapsed + " msecs.");
     obj.delete();
 }
+
+function _call_through_interface2() {
+    var N = 1000000;
+    var total = 0;
+    var obj = Module['Interface'].implement({
+        call_with_typed_array: function(ta) {
+            total += ta.length;
+        },
+        call_with_memory_view: function(ta) {
+            total += ta.length;
+        },
+    });
+
+    var start = _emscripten_get_now();
+    Module['callInterface2'](N, obj);
+    var elapsed = _emscripten_get_now() - start;
+    Module.print("C++ -> JS typed array instantiation " + N + " iters: " + elapsed + " msecs.");
+
+    var start = _emscripten_get_now();
+    Module['callInterface3'](N, obj);
+    var elapsed = _emscripten_get_now() - start;
+    Module.print("C++ -> JS memory_view instantiation" + N + " iters: " + elapsed + " msecs.");
+    obj.delete();
+}
diff --git a/tests/embind/embind_benchmark.cpp b/tests/embind/embind_benchmark.cpp
index b6a834c9..5ad41654 100644
--- a/tests/embind/embind_benchmark.cpp
+++ b/tests/embind/embind_benchmark.cpp
@@ -50,6 +50,7 @@ extern void pass_gameobject_ptr_benchmark_embind_js();
 
 extern void call_through_interface0();
 extern void call_through_interface1();
+extern void call_through_interface2();
 }
 
 class Vec3
@@ -135,8 +136,13 @@ class Interface
 public:
     virtual void call0() = 0;
     virtual std::wstring call1(const std::wstring& str1, const std::wstring& str2) = 0;
+    virtual void call_with_typed_array(size_t size, const void*) = 0;
+    virtual void call_with_memory_view(size_t size, const void*) = 0;
 };
 
+EMSCRIPTEN_SYMBOL(HEAP8);
+EMSCRIPTEN_SYMBOL(buffer);
+
 class InterfaceWrapper : public emscripten::wrapper<Interface>
 {
 public:
@@ -149,6 +155,21 @@ public:
     std::wstring call1(const std::wstring& str1, const std::wstring& str2) {
         return call<std::wstring>("call1", str1, str2);
     }
+
+    void call_with_typed_array(size_t size, const void* data) {
+        return call<void>(
+            "call_with_typed_array",
+            emscripten::val::global("Uint8Array").new_(
+                emscripten::val::module_property(HEAP8_symbol)[buffer_symbol],
+                reinterpret_cast<uintptr_t>(data),
+                size));
+    }
+
+    void call_with_memory_view(size_t size, const void* data) {
+        return call<void>(
+            "call_with_memory_view",
+            emscripten::memory_view(size, data));
+    }
 };
 
 void callInterface0(unsigned N, Interface& o) {
@@ -180,6 +201,33 @@ void callInterface1(unsigned N, Interface& o) {
     }
 }
 
+void callInterface2(unsigned N, Interface& o) {
+    int i = 0;
+    for (unsigned i = 0; i < N; i += 8) {
+        o.call_with_typed_array(sizeof(int), &i);
+        o.call_with_typed_array(sizeof(int), &i);
+        o.call_with_typed_array(sizeof(int), &i);
+        o.call_with_typed_array(sizeof(int), &i);
+        o.call_with_typed_array(sizeof(int), &i);
+        o.call_with_typed_array(sizeof(int), &i);
+        o.call_with_typed_array(sizeof(int), &i);
+        o.call_with_typed_array(sizeof(int), &i);
+    }
+}
+
+void callInterface3(unsigned N, Interface& o) {
+    for (unsigned i = 0; i < N; i += 8) {
+        o.call_with_memory_view(sizeof(int), &i);
+        o.call_with_memory_view(sizeof(int), &i);
+        o.call_with_memory_view(sizeof(int), &i);
+        o.call_with_memory_view(sizeof(int), &i);
+        o.call_with_memory_view(sizeof(int), &i);
+        o.call_with_memory_view(sizeof(int), &i);
+        o.call_with_memory_view(sizeof(int), &i);
+        o.call_with_memory_view(sizeof(int), &i);
+    }
+}
+
 EMSCRIPTEN_BINDINGS(benchmark)
 {
     using namespace emscripten;
@@ -225,6 +273,8 @@ EMSCRIPTEN_BINDINGS(benchmark)
 
     function("callInterface0", &callInterface0);
     function("callInterface1", &callInterface1);
+    function("callInterface2", &callInterface2);
+    function("callInterface3", &callInterface3);
 }
 
 void __attribute__((noinline)) emscripten_get_now_benchmark(int N)
@@ -435,4 +485,5 @@ int main()
     emscripten_get_now();
     call_through_interface0();
     call_through_interface1();
+    call_through_interface2();
 }