Merge pull request #12 from simd-lite/benchmarks

Add benchmarks for serializing/deserializing simd_json values

Author: Licenser

Cargo.toml

@@ -24,6 +24,7 @@ simd-json = '0.6'
 [dev-dependencies]
 serde_json = "1"
 serde = "1"
+criterion = "0.4"
 
 [features]
 default = ["impl-chrono"]
@@ -39,3 +40,7 @@ features = ["allow-non-simd"]
 
 [[example]]
 name = "enum1"
+
+[[bench]]
+name = "value"
+harness = false

benches/value.rs

@@ -0,0 +1,50 @@
+use criterion::{criterion_group, criterion_main, BenchmarkId, Criterion, Throughput};
+
+use simd_json::borrowed::Value as BorrowedValue;
+use simd_json::owned::Value as OwnedValue;
+use simd_json_derive::Deserialize;
+
+fn json_array_string(length: usize) -> String {
+    format!(
+        "[{}]",
+        (0..length)
+            .map(|i| i.to_string())
+            .collect::<Vec<_>>()
+            .join(",")
+    )
+}
+
+fn deserialize_owned_value_benchmark(c: &mut Criterion) {
+    let mut group = c.benchmark_group("owned-deserialize-array");
+    for i in [2_usize, 32, 128, 1024, 4096] {
+        let input = json_array_string(i);
+        group.throughput(Throughput::Bytes(input.len() as u64));
+        group.bench_with_input(BenchmarkId::from_parameter(i), &input, |b, input| {
+            let mut my_input = input.clone();
+            b.iter(|| OwnedValue::from_str(my_input.as_mut_str()).expect("shizzle"))
+        });
+    }
+    group.finish();
+}
+
+fn deserialize_borrowed_value_benchmark(c: &mut Criterion) {
+    let mut group = c.benchmark_group("borrowed-deserialize-array");
+    for i in [2_usize, 32, 128, 1024, 4096] {
+        let input = json_array_string(i);
+        group.throughput(Throughput::Bytes(input.len() as u64));
+        group.bench_with_input(BenchmarkId::from_parameter(i), &input, |b, input| {
+            let mut my_input = input.clone();
+            b.iter(|| {
+                let _x = BorrowedValue::from_str(my_input.as_mut_str()).expect("shizzle");
+            })
+        });
+    }
+    group.finish();
+}
+
+criterion_group!(
+    benches,
+    deserialize_owned_value_benchmark,
+    deserialize_borrowed_value_benchmark
+);
+criterion_main!(benches);