94 lines
2.8 KiB
Rust
94 lines
2.8 KiB
Rust
// uses /usr/share/dict/ for text to convert to Vec<Utf*Char> and iterate over
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#![cfg(all(unix, feature="std"))]
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#![feature(test)]
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extern crate test;
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use test::{Bencher, black_box};
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#[macro_use] extern crate lazy_static;
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extern crate encode_unicode;
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use encode_unicode::{CharExt, Utf8Char, Utf16Char, iter_bytes, iter_units};
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static ENGLISH: &str = include_str!("/usr/share/dict/american-english");
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// TODO find a big chinese file; `aptitude search '?provides(wordlist)'` didn't have one
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lazy_static!{
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static ref UTF8CHARS: Vec<Utf8Char> = ENGLISH.chars().map(|c| c.to_utf8() ).collect();
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static ref UTF16CHARS: Vec<Utf16Char> = ENGLISH.chars().map(|c| c.to_utf16() ).collect();
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}
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#[bench]
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fn utf16_split_all_single_mulititerator(b: &mut Bencher) {
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b.iter(|| {
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iter_units(black_box(&*UTF16CHARS)).for_each(|u| assert!(u != 0) );
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});
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}
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#[bench]
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fn utf16_split_all_single_flatmap(b: &mut Bencher) {
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b.iter(|| {
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black_box(&*UTF16CHARS).iter().flat_map(|&u16c| u16c ).for_each(|u| assert!(u != 0) );
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});
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}
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#[bench]
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fn utf16_split_all_single_cloned_flatten(b: &mut Bencher) {
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b.iter(|| {
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black_box(&*UTF16CHARS).iter().cloned().flatten().for_each(|u| assert!(u != 0) );
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});
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}
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#[bench]
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fn utf8_split_mostly_ascii_multiiterator(b: &mut Bencher) {
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b.iter(|| {
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iter_bytes(black_box(&*UTF8CHARS)).for_each(|b| assert!(b != 0) );
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});
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}
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#[bench]
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fn utf8_split_mostly_ascii_flatmap(b: &mut Bencher) {
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b.iter(|| {
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black_box(&*UTF8CHARS).iter().flat_map(|&u8c| u8c ).for_each(|b| assert!(b != 0) );
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});
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}
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#[bench]
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fn utf8_split_mostly_ascii_cloned_flatten(b: &mut Bencher) {
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b.iter(|| {
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black_box(&*UTF8CHARS).iter().cloned().flatten().for_each(|b| assert!(b != 0) );
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});
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}
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#[bench]
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fn utf8_extend_mostly_ascii_multiiterator(b: &mut Bencher) {
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b.iter(|| {
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let vec: Vec<u8> = iter_bytes(black_box(&*UTF8CHARS)).collect();
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assert_eq!(black_box(vec).len(), ENGLISH.len());
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});
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}
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#[bench]
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fn utf8_extend_mostly_ascii_custom(b: &mut Bencher) {
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b.iter(|| {
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let vec: Vec<u8> = black_box(&*UTF8CHARS).iter().collect();
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assert_eq!(black_box(vec).len(), ENGLISH.len());
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});
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}
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#[bench]
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fn utf8_extend_mostly_ascii_custom_str(b: &mut Bencher) {
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b.iter(|| {
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let vec: String = black_box(&*UTF8CHARS).iter().cloned().collect();
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assert_eq!(black_box(vec).len(), ENGLISH.len());
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});
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}
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#[bench]
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fn utf16_extend_all_single_multiiterator(b: &mut Bencher) {
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b.iter(|| {
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let vec: Vec<u16> = iter_units(black_box(&*UTF16CHARS)).collect();
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assert!(black_box(vec).len() < ENGLISH.len());
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});
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}
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#[bench]
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fn utf16_extend_all_single_custom(b: &mut Bencher) {
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b.iter(|| {
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let vec: Vec<u16> = black_box(&*UTF16CHARS).iter().collect();
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assert!(black_box(vec).len() < ENGLISH.len());
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});
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}
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