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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /vendor/phf_generator/benches
parentInitial commit. (diff)
downloadrustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz
rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/phf_generator/benches')
-rw-r--r--vendor/phf_generator/benches/benches.rs58
1 files changed, 58 insertions, 0 deletions
diff --git a/vendor/phf_generator/benches/benches.rs b/vendor/phf_generator/benches/benches.rs
new file mode 100644
index 000000000..179c8627b
--- /dev/null
+++ b/vendor/phf_generator/benches/benches.rs
@@ -0,0 +1,58 @@
+use criterion::measurement::Measurement;
+use criterion::{criterion_group, criterion_main, Bencher, BenchmarkId, Criterion};
+
+use rand::distributions::Standard;
+use rand::rngs::SmallRng;
+use rand::{Rng, SeedableRng};
+
+use phf_generator::generate_hash;
+
+fn gen_vec(len: usize) -> Vec<u64> {
+ SmallRng::seed_from_u64(0xAAAAAAAAAAAAAAAA)
+ .sample_iter(Standard)
+ .take(len)
+ .collect()
+}
+
+fn bench_hash<M: Measurement>(b: &mut Bencher<M>, len: &usize) {
+ let vec = gen_vec(*len);
+ b.iter(|| generate_hash(&vec))
+}
+
+fn gen_hash_small(c: &mut Criterion) {
+ let sizes = vec![0, 1, 2, 5, 10, 25, 50, 75];
+ for size in &sizes {
+ c.bench_with_input(BenchmarkId::new("gen_hash_small", *size), size, bench_hash);
+ }
+}
+
+fn gen_hash_med(c: &mut Criterion) {
+ let sizes = vec![100, 250, 500, 1000, 2500, 5000, 7500];
+ for size in &sizes {
+ c.bench_with_input(BenchmarkId::new("gen_hash_medium", *size), size, bench_hash);
+ }
+}
+
+fn gen_hash_large(c: &mut Criterion) {
+ let sizes = vec![10_000, 25_000, 50_000, 75_000];
+ for size in &sizes {
+ c.bench_with_input(BenchmarkId::new("gen_hash_large", *size), size, bench_hash);
+ }
+}
+
+fn gen_hash_xlarge(c: &mut Criterion) {
+ let sizes = vec![100_000, 250_000, 500_000, 750_000, 1_000_000];
+ for size in &sizes {
+ c.bench_with_input(BenchmarkId::new("gen_hash_xlarge", *size), size, bench_hash);
+ }
+}
+
+criterion_group!(
+ benches,
+ gen_hash_small,
+ gen_hash_med,
+ gen_hash_large,
+ gen_hash_xlarge
+);
+
+criterion_main!(benches);