rhai/benches/iterations.rs

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#![feature(test)]
///! Test 1,000 iterations
extern crate test;
use rhai::{Engine, OptimizationLevel, INT};
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use test::Bencher;
#[bench]
fn bench_iterations_1000(bench: &mut Bencher) {
let script = r#"
let x = 1_000;
while x > 0 {
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x -= 1;
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}
"#;
let mut engine = Engine::new();
engine.set_optimization_level(OptimizationLevel::None);
let ast = engine.compile(script).unwrap();
bench.iter(|| engine.run_ast(&ast).unwrap());
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}
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#[bench]
fn bench_iterations_fibonacci(bench: &mut Bencher) {
let script = r#"
fn fibonacci(n) {
if n < 2 {
n
} else {
fibonacci(n-1) + fibonacci(n-2)
}
}
fibonacci(20)
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"#;
let mut engine = Engine::new();
engine.set_optimization_level(OptimizationLevel::None);
let ast = engine.compile(script).unwrap();
bench.iter(|| engine.eval_ast::<INT>(&ast).unwrap());
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}
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#[bench]
fn bench_iterations_array(bench: &mut Bencher) {
let script = r#"
let x = [];
x.pad(1000, 0);
for i in range(0, 1000) { x[i] = i % 256; }
"#;
let mut engine = Engine::new();
engine.set_optimization_level(OptimizationLevel::None);
let ast = engine.compile(script).unwrap();
bench.iter(|| engine.run_ast(&ast).unwrap());
}
#[bench]
fn bench_iterations_blob(bench: &mut Bencher) {
let script = r#"
let x = blob(1000, 0);
for i in range(0, 1000) { x[i] = i % 256; }
"#;
let mut engine = Engine::new();
engine.set_optimization_level(OptimizationLevel::None);
let ast = engine.compile(script).unwrap();
bench.iter(|| engine.run_ast(&ast).unwrap());
}