1 files changed, 28 insertions, 0 deletions
diff --git a/third_party/rust/parity-wasm/examples/bench-decoder.rs b/third_party/rust/parity-wasm/examples/bench-decoder.rs
new file mode 100644
index 0000000000..5749b5f6a9
--- /dev/null
+++ b/third_party/rust/parity-wasm/examples/bench-decoder.rs
@@ -0,0 +1,28 @@
+extern crate parity_wasm;
+extern crate time;
+
+use std::fs;
+
+fn rate(file_name: &'static str, iterations: u64) {
+	let file_size = fs::metadata(file_name).expect(&format!("{} to exist", file_name)).len();
+	let mut total_ms = 0;
+
+	for _ in 0..iterations {
+		let start = time::PreciseTime::now();
+		let _module = parity_wasm::deserialize_file(file_name);
+		let end = time::PreciseTime::now();
+
+		total_ms += start.to(end).num_milliseconds();
+	}
+
+	println!("Rate for {}: {} MB/s", file_name,
+		(file_size as f64 * iterations as f64 / (1024*1024) as f64) /  // total work megabytes
+		(total_ms as f64 / 1000f64)									   // total seconds
+	);
+}
+
+fn main() {
+	rate("./res/cases/v1/clang.wasm", 10);
+	rate("./res/cases/v1/hello.wasm", 100);
+	rate("./res/cases/v1/with_names.wasm", 100);
+}
+\ No newline at end of file