Added criterion

Cargo.toml

@@ -4,8 +4,10 @@ version = "0.1.0"
 authors = ["sunli <[email protected]>"]
 edition = "2018"
 
-[dependencies]
-async-graphql = "1.4.4"
-async-std = { version = "1.5.0", features = ["attributes"] }
-juniper = { git = "https://github.com/graphql-rust/juniper"}
-futures = "0.3.4"
+[dev-dependencies]
+criterion = "0.3"
+simple = { path = "simple" }
+
+[[bench]]
+name = "simple"
+harness = false

benches/simple.rs

@@ -0,0 +1,12 @@
+use criterion::{criterion_group, criterion_main, Criterion, black_box};
+use simple::{Q, run, parse, serialize, GQLResponse};
+
+pub fn criterion_benchmark(c: &mut Criterion) {
+    c.bench_function("run", |b| b.iter(|| run(black_box(Q))));
+    c.bench_function("parse", |b| b.iter(|| parse(black_box(Q))));
+    let res = GQLResponse(run(Q));
+    c.bench_function("serialize", |b| b.iter(|| serialize(black_box(&res))));
+}
+
+criterion_group!(benches, criterion_benchmark);
+criterion_main!(benches);