1 // Copyright 2012 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 // ignore-lexer-test FIXME #15679
12 // Microbenchmarks for various functions in std and extra
14 #![feature(macro_rules)]
15 #![feature(unboxed_closures)]
23 use std::time::Duration;
27 let argv = os::args();
28 let _tests = argv.slice(1, argv.len());
32 (maybe_run_test(argv.as_slice(),
33 stringify!($id).to_string(),
41 bench!(is_utf8_ascii);
42 bench!(is_utf8_multibyte);
45 fn maybe_run_test<F>(argv: &[String], name: String, test: F) where F: FnOnce() {
46 let mut run_test = false;
48 if os::getenv("RUST_BENCH").is_some() {
50 } else if argv.len() > 0 {
51 run_test = argv.iter().any(|x| x == &"all".to_string()) || argv.iter().any(|x| x == &name)
58 let dur = Duration::span(test);
60 println!("{}:\t\t{} ms", name, dur.num_milliseconds());
64 let mut v1 = Vec::from_elem(30000, 1i);
65 let mut v2 = Vec::new();
68 v2.push(v1.remove(0));
73 use std::io::BufferedReader;
75 let mut path = Path::new(env!("CFG_SRC_DIR"));
76 path.push("src/test/bench/shootout-k-nucleotide.data");
78 for _ in range(0u, 3) {
79 let mut reader = BufferedReader::new(File::open(&path).unwrap());
80 for _line in reader.lines() {
86 let mut r = rand::thread_rng();
88 let mut v = Vec::new();
91 let rv = Vec::from_elem(r.gen_range(0u, i + 1), i);
93 v.extend(rv.into_iter());
95 let mut rv = rv.clone();
96 rv.push_all(v.as_slice());
104 let mut r = rand::thread_rng();
106 let mut v = Vec::new();
109 let rv = Vec::from_elem(r.gen_range(0u, i + 1), i);
111 let mut t = v.clone();
112 t.push_all(rv.as_slice());
116 let mut t = rv.clone();
117 t.push_all(v.as_slice());
125 let mut r = rand::thread_rng();
127 let mut v = Vec::new();
128 for i in range(0u, 1500) {
129 let mut rv = Vec::from_elem(r.gen_range(0u, i + 1), i);
131 v.push_all(rv.as_slice());
134 swap(&mut v, &mut rv);
135 v.push_all(rv.as_slice());
141 let mut v : Vec<u8> = Vec::new();
142 for _ in range(0u, 20000) {
144 if !str::is_utf8(v.as_slice()) {
145 panic!("is_utf8 panicked");
150 fn is_utf8_multibyte() {
152 let mut v : Vec<u8> = Vec::new();
153 for _ in range(0u, 5000) {
154 v.push_all(s.as_bytes());
155 if !str::is_utf8(v.as_slice()) {
156 panic!("is_utf8 panicked");