34 lines
773 B
Rust
34 lines
773 B
Rust
//! Compare `insert` and `insert_unique_unchecked` operations performance.
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#![feature(test)]
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extern crate test;
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use hashbrown::HashMap;
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use test::Bencher;
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#[bench]
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fn insert(b: &mut Bencher) {
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let keys: Vec<String> = (0..1000).map(|i| format!("xxxx{}yyyy", i)).collect();
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b.iter(|| {
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let mut m = HashMap::with_capacity(1000);
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for k in &keys {
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m.insert(k, k);
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}
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m
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});
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}
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#[bench]
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fn insert_unique_unchecked(b: &mut Bencher) {
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let keys: Vec<String> = (0..1000).map(|i| format!("xxxx{}yyyy", i)).collect();
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b.iter(|| {
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let mut m = HashMap::with_capacity(1000);
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for k in &keys {
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unsafe {
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m.insert_unique_unchecked(k, k);
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}
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}
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m
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});
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}
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