Added more benchmarks (#323)

boa/Cargo.toml

@@ -17,13 +17,13 @@ default = ["wasm-bindgen"]
 [dependencies]
 gc = "0.3.3"
 gc_derive = "0.3.2"
-serde_json = "1.0.48"
+serde_json = "1.0.51"
 rand = "0.7.3"
 regex = "1.3.6"
 
 # Optional Dependencies
-wasm-bindgen = { version = "0.2.59", optional = true }
-serde = { version = "1.0.105", features = ["derive"], optional = true }
+wasm-bindgen = { version = "0.2.60", optional = true }
+serde = { version = "1.0.106", features = ["derive"], optional = true }
 
 [dev-dependencies]
 criterion = "0.3.1"
@@ -34,17 +34,13 @@ name = "boa"
 bench = false
 
 [[bench]]
-name = "string"
+name = "lexer"
 harness = false
 
 [[bench]]
-name = "fib"
+name = "parser"
 harness = false
 
 [[bench]]
 name = "exec"
-harness = false
-
-[[bench]]
-name = "parser"
-harness = false
+harness = false

boa/benches/exec.rs

@@ -1,23 +1,72 @@
-#[macro_use]
-extern crate criterion;
+//! Benchmarks of the whole execution engine in Boa.
 
-use boa::exec;
-use boa::realm::Realm;
-use criterion::{black_box, Criterion};
+use boa::{exec, realm::Realm};
+use criterion::{black_box, criterion_group, criterion_main, Criterion};
 
-static SRC: &str = r#"
+static SYMBOL_CREATION: &str = r#"
 let a = Symbol();
 let b = Symbol();
 let c = Symbol();
 "#;
 
+fn create_realm(c: &mut Criterion) {
+    c.bench_function("Create Realm", move |b| b.iter(Realm::create));
+}
+
 fn symbol_creation(c: &mut Criterion) {
-    c.bench_function("Symbol Creation", move |b| b.iter(|| exec(black_box(SRC))));
+    c.bench_function("Symbol creation (Execution)", move |b| {
+        b.iter(|| exec(black_box(SYMBOL_CREATION)))
+    });
 }
 
-fn create_realm(c: &mut Criterion) {
-    c.bench_function("Create Realm", move |b| b.iter(|| Realm::create()));
+static FOR_LOOP: &str = r#"
+let a = 10;
+let b = "hello";
+for (;;) {
+    a += 5;
+
+    if a < 50 {
+        b += "world";
+    }
+
+    if (a > 100) {
+        break;
+    }
+}
+let c = a;
+let d = b;
+"#;
+
+fn for_loop_execution(c: &mut Criterion) {
+    c.bench_function("For loop (Execution)", move |b| {
+        b.iter(|| exec(black_box(FOR_LOOP)))
+    });
+}
+
+static FIBONACCI: &str = r#"
+let num = 12;
+
+function fib(n) {
+  if (n <= 1) return 1;
+  return fib(n - 1) + fib(n - 2);
+}
+
+let res = fib(num);
+
+res;
+"#;
+
+fn fibonacci(c: &mut Criterion) {
+    c.bench_function("Fibonacci (Execution)", move |b| {
+        b.iter(|| exec(black_box(FIBONACCI)))
+    });
 }
 
-criterion_group!(benches, create_realm, symbol_creation);
-criterion_main!(benches);
+criterion_group!(
+    execution,
+    create_realm,
+    symbol_creation,
+    for_loop_execution,
+    fibonacci
+);
+criterion_main!(execution);

boa/benches/lexer.rs

@@ -0,0 +1,56 @@
+//! Benchmarks of the lexing process in Boa.
+
+use boa::syntax::lexer::Lexer;
+use criterion::{black_box, criterion_group, criterion_main, Criterion};
+
+static EXPRESSION: &str = r#"
+1 + 1 + 1 + 1 + 1 + 1 / 1 + 1 + 1 * 1 + 1 + 1 + 1;
+"#;
+
+fn expression_lexer(c: &mut Criterion) {
+    c.bench_function("Expression (Lexer)", move |b| {
+        b.iter(|| {
+            let mut lexer = Lexer::new(black_box(EXPRESSION));
+
+            lexer.lex()
+        })
+    });
+}
+
+static HELLO_WORLD: &str = "let foo = 'hello world!'; foo;";
+
+fn hello_world_lexer(c: &mut Criterion) {
+    c.bench_function("Hello World (Lexer)", move |b| {
+        b.iter(|| {
+            let mut lexer = Lexer::new(black_box(HELLO_WORLD));
+            // return the value into the blackbox so its not optimized away
+            // https://gist.github.com/jasonwilliams/5325da61a794d8211dcab846d466c4fd
+            lexer.lex()
+        })
+    });
+}
+
+static FOR_LOOP: &str = r#"
+for (let a = 10; a < 100; a++) {
+    if (a < 10) {
+        console.log("impossible D:");
+    } else if (a < 50) {
+        console.log("starting");
+    } else {
+        console.log("finishing");
+    }
+}
+"#;
+
+fn for_loop_lexer(c: &mut Criterion) {
+    c.bench_function("For loop (Lexer)", move |b| {
+        b.iter(|| {
+            let mut lexer = Lexer::new(black_box(FOR_LOOP));
+
+            lexer.lex()
+        })
+    });
+}
+
+criterion_group!(lexer, expression_lexer, hello_world_lexer, for_loop_lexer);
+criterion_main!(lexer);