mirror of
https://github.com/quickwit-oss/tantivy.git
synced 2026-01-06 17:22:54 +00:00
7b31100208
- improve performance of vint vint serialization shows up in performance profiles during indexing. It would also make sense to limit the value space to u29 and operate on 4 bytes only. - remove unused code - add missing inlines - fix regex test
40 lines
997 B
Rust
40 lines
997 B
Rust
#![feature(test)]
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extern crate test;
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#[cfg(test)]
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mod tests {
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use rand::seq::IteratorRandom;
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use rand::thread_rng;
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use tantivy_common::serialize_vint_u32;
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use test::Bencher;
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#[bench]
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fn bench_vint(b: &mut Bencher) {
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let vals: Vec<u32> = (0..20_000).collect();
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b.iter(|| {
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let mut out = 0u64;
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for val in vals.iter().cloned() {
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let mut buf = [0u8; 8];
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serialize_vint_u32(val, &mut buf);
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out += u64::from(buf[0]);
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}
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out
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});
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}
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#[bench]
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fn bench_vint_rand(b: &mut Bencher) {
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let vals: Vec<u32> = (0..20_000).choose_multiple(&mut thread_rng(), 100_000);
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b.iter(|| {
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let mut out = 0u64;
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for val in vals.iter().cloned() {
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let mut buf = [0u8; 8];
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serialize_vint_u32(val, &mut buf);
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out += u64::from(buf[0]);
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}
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out
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});
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}
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}
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