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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 14:29:10 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 14:29:10 +0000
commit2aa4a82499d4becd2284cdb482213d541b8804dd (patch)
treeb80bf8bf13c3766139fbacc530efd0dd9d54394c /third_party/rust/crc32fast/benches/bench.rs
parentInitial commit. (diff)
downloadfirefox-2aa4a82499d4becd2284cdb482213d541b8804dd.tar.xz
firefox-2aa4a82499d4becd2284cdb482213d541b8804dd.zip
Adding upstream version 86.0.1.upstream/86.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/rust/crc32fast/benches/bench.rs')
-rw-r--r--third_party/rust/crc32fast/benches/bench.rs49
1 files changed, 49 insertions, 0 deletions
diff --git a/third_party/rust/crc32fast/benches/bench.rs b/third_party/rust/crc32fast/benches/bench.rs
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+++ b/third_party/rust/crc32fast/benches/bench.rs
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+#[macro_use]
+extern crate bencher;
+extern crate crc32fast;
+extern crate rand;
+
+use bencher::Bencher;
+use crc32fast::Hasher;
+use rand::Rng;
+
+fn bench(b: &mut Bencher, size: usize, hasher_init: Hasher) {
+ let mut bytes = vec![0u8; size];
+ rand::thread_rng().fill_bytes(&mut bytes);
+
+ b.iter(|| {
+ let mut hasher = hasher_init.clone();
+ hasher.update(&bytes);
+ bencher::black_box(hasher.finalize())
+ });
+
+ b.bytes = size as u64;
+}
+
+fn bench_kilobyte_baseline(b: &mut Bencher) {
+ bench(b, 1024, Hasher::internal_new_baseline(0))
+}
+
+fn bench_kilobyte_specialized(b: &mut Bencher) {
+ bench(b, 1024, Hasher::internal_new_specialized(0).unwrap())
+}
+
+fn bench_megabyte_baseline(b: &mut Bencher) {
+ bench(b, 1024 * 1024, Hasher::internal_new_baseline(0))
+}
+
+fn bench_megabyte_specialized(b: &mut Bencher) {
+ bench(b, 1024 * 1024, Hasher::internal_new_specialized(0).unwrap())
+}
+
+benchmark_group!(
+ bench_baseline,
+ bench_kilobyte_baseline,
+ bench_megabyte_baseline
+);
+benchmark_group!(
+ bench_specialized,
+ bench_kilobyte_specialized,
+ bench_megabyte_specialized
+);
+benchmark_main!(bench_baseline, bench_specialized);