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-rw-r--r--third_party/rust/byteorder/benches/bench.rs328
1 files changed, 328 insertions, 0 deletions
diff --git a/third_party/rust/byteorder/benches/bench.rs b/third_party/rust/byteorder/benches/bench.rs
new file mode 100644
index 0000000000..d53d25e4b5
--- /dev/null
+++ b/third_party/rust/byteorder/benches/bench.rs
@@ -0,0 +1,328 @@
+#![feature(test)]
+
+extern crate byteorder;
+extern crate rand;
+extern crate test;
+
+macro_rules! bench_num {
+ ($name:ident, $read:ident, $bytes:expr, $data:expr) => (
+ mod $name {
+ use byteorder::{ByteOrder, BigEndian, NativeEndian, LittleEndian};
+ use super::test::Bencher;
+ use super::test::black_box as bb;
+
+ const NITER: usize = 100_000;
+
+ #[bench]
+ fn read_big_endian(b: &mut Bencher) {
+ let buf = $data;
+ b.iter(|| {
+ for _ in 0..NITER {
+ bb(BigEndian::$read(&buf, $bytes));
+ }
+ });
+ }
+
+ #[bench]
+ fn read_little_endian(b: &mut Bencher) {
+ let buf = $data;
+ b.iter(|| {
+ for _ in 0..NITER {
+ bb(LittleEndian::$read(&buf, $bytes));
+ }
+ });
+ }
+
+ #[bench]
+ fn read_native_endian(b: &mut Bencher) {
+ let buf = $data;
+ b.iter(|| {
+ for _ in 0..NITER {
+ bb(NativeEndian::$read(&buf, $bytes));
+ }
+ });
+ }
+ }
+ );
+ ($ty:ident, $max:ident,
+ $read:ident, $write:ident, $size:expr, $data:expr) => (
+ mod $ty {
+ use std::$ty;
+ use byteorder::{ByteOrder, BigEndian, NativeEndian, LittleEndian};
+ use super::test::Bencher;
+ use super::test::black_box as bb;
+
+ const NITER: usize = 100_000;
+
+ #[bench]
+ fn read_big_endian(b: &mut Bencher) {
+ let buf = $data;
+ b.iter(|| {
+ for _ in 0..NITER {
+ bb(BigEndian::$read(&buf));
+ }
+ });
+ }
+
+ #[bench]
+ fn read_little_endian(b: &mut Bencher) {
+ let buf = $data;
+ b.iter(|| {
+ for _ in 0..NITER {
+ bb(LittleEndian::$read(&buf));
+ }
+ });
+ }
+
+ #[bench]
+ fn read_native_endian(b: &mut Bencher) {
+ let buf = $data;
+ b.iter(|| {
+ for _ in 0..NITER {
+ bb(NativeEndian::$read(&buf));
+ }
+ });
+ }
+
+ #[bench]
+ fn write_big_endian(b: &mut Bencher) {
+ let mut buf = $data;
+ let n = $ty::$max;
+ b.iter(|| {
+ for _ in 0..NITER {
+ bb(BigEndian::$write(&mut buf, n));
+ }
+ });
+ }
+
+ #[bench]
+ fn write_little_endian(b: &mut Bencher) {
+ let mut buf = $data;
+ let n = $ty::$max;
+ b.iter(|| {
+ for _ in 0..NITER {
+ bb(LittleEndian::$write(&mut buf, n));
+ }
+ });
+ }
+
+ #[bench]
+ fn write_native_endian(b: &mut Bencher) {
+ let mut buf = $data;
+ let n = $ty::$max;
+ b.iter(|| {
+ for _ in 0..NITER {
+ bb(NativeEndian::$write(&mut buf, n));
+ }
+ });
+ }
+ }
+ );
+}
+
+bench_num!(u16, MAX, read_u16, write_u16, 2, [1, 2]);
+bench_num!(i16, MAX, read_i16, write_i16, 2, [1, 2]);
+bench_num!(u32, MAX, read_u32, write_u32, 4, [1, 2, 3, 4]);
+bench_num!(i32, MAX, read_i32, write_i32, 4, [1, 2, 3, 4]);
+bench_num!(u64, MAX, read_u64, write_u64, 8, [1, 2, 3, 4, 5, 6, 7, 8]);
+bench_num!(i64, MAX, read_i64, write_i64, 8, [1, 2, 3, 4, 5, 6, 7, 8]);
+bench_num!(f32, MAX, read_f32, write_f32, 4, [1, 2, 3, 4]);
+bench_num!(f64, MAX, read_f64, write_f64, 8,
+ [1, 2, 3, 4, 5, 6, 7, 8]);
+
+bench_num!(uint_1, read_uint, 1, [1]);
+bench_num!(uint_2, read_uint, 2, [1, 2]);
+bench_num!(uint_3, read_uint, 3, [1, 2, 3]);
+bench_num!(uint_4, read_uint, 4, [1, 2, 3, 4]);
+bench_num!(uint_5, read_uint, 5, [1, 2, 3, 4, 5]);
+bench_num!(uint_6, read_uint, 6, [1, 2, 3, 4, 5, 6]);
+bench_num!(uint_7, read_uint, 7, [1, 2, 3, 4, 5, 6, 7]);
+bench_num!(uint_8, read_uint, 8, [1, 2, 3, 4, 5, 6, 7, 8]);
+
+bench_num!(int_1, read_int, 1, [1]);
+bench_num!(int_2, read_int, 2, [1, 2]);
+bench_num!(int_3, read_int, 3, [1, 2, 3]);
+bench_num!(int_4, read_int, 4, [1, 2, 3, 4]);
+bench_num!(int_5, read_int, 5, [1, 2, 3, 4, 5]);
+bench_num!(int_6, read_int, 6, [1, 2, 3, 4, 5, 6]);
+bench_num!(int_7, read_int, 7, [1, 2, 3, 4, 5, 6, 7]);
+bench_num!(int_8, read_int, 8, [1, 2, 3, 4, 5, 6, 7, 8]);
+
+#[cfg(byteorder_i128)]
+bench_num!(u128, MAX, read_u128, write_u128,
+ 16, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]);
+#[cfg(byteorder_i128)]
+bench_num!(i128, MAX, read_i128, write_i128,
+ 16, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]);
+
+#[cfg(byteorder_i128)]
+bench_num!(uint128_1, read_uint128,
+ 1, [1]);
+#[cfg(byteorder_i128)]
+bench_num!(uint128_2, read_uint128,
+ 2, [1, 2]);
+#[cfg(byteorder_i128)]
+bench_num!(uint128_3, read_uint128,
+ 3, [1, 2, 3]);
+#[cfg(byteorder_i128)]
+bench_num!(uint128_4, read_uint128,
+ 4, [1, 2, 3, 4]);
+#[cfg(byteorder_i128)]
+bench_num!(uint128_5, read_uint128,
+ 5, [1, 2, 3, 4, 5]);
+#[cfg(byteorder_i128)]
+bench_num!(uint128_6, read_uint128,
+ 6, [1, 2, 3, 4, 5, 6]);
+#[cfg(byteorder_i128)]
+bench_num!(uint128_7, read_uint128,
+ 7, [1, 2, 3, 4, 5, 6, 7]);
+#[cfg(byteorder_i128)]
+bench_num!(uint128_8, read_uint128,
+ 8, [1, 2, 3, 4, 5, 6, 7, 8]);
+#[cfg(byteorder_i128)]
+bench_num!(uint128_9, read_uint128,
+ 9, [1, 2, 3, 4, 5, 6, 7, 8, 9]);
+#[cfg(byteorder_i128)]
+bench_num!(uint128_10, read_uint128,
+ 10, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);
+#[cfg(byteorder_i128)]
+bench_num!(uint128_11, read_uint128,
+ 11, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]);
+#[cfg(byteorder_i128)]
+bench_num!(uint128_12, read_uint128,
+ 12, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]);
+#[cfg(byteorder_i128)]
+bench_num!(uint128_13, read_uint128,
+ 13, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13]);
+#[cfg(byteorder_i128)]
+bench_num!(uint128_14, read_uint128,
+ 14, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14]);
+#[cfg(byteorder_i128)]
+bench_num!(uint128_15, read_uint128,
+ 15, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]);
+#[cfg(byteorder_i128)]
+bench_num!(uint128_16, read_uint128,
+ 16, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]);
+
+#[cfg(byteorder_i128)]
+bench_num!(int128_1, read_int128,
+ 1, [1]);
+#[cfg(byteorder_i128)]
+bench_num!(int128_2, read_int128,
+ 2, [1, 2]);
+#[cfg(byteorder_i128)]
+bench_num!(int128_3, read_int128,
+ 3, [1, 2, 3]);
+#[cfg(byteorder_i128)]
+bench_num!(int128_4, read_int128,
+ 4, [1, 2, 3, 4]);
+#[cfg(byteorder_i128)]
+bench_num!(int128_5, read_int128,
+ 5, [1, 2, 3, 4, 5]);
+#[cfg(byteorder_i128)]
+bench_num!(int128_6, read_int128,
+ 6, [1, 2, 3, 4, 5, 6]);
+#[cfg(byteorder_i128)]
+bench_num!(int128_7, read_int128,
+ 7, [1, 2, 3, 4, 5, 6, 7]);
+#[cfg(byteorder_i128)]
+bench_num!(int128_8, read_int128,
+ 8, [1, 2, 3, 4, 5, 6, 7, 8]);
+#[cfg(byteorder_i128)]
+bench_num!(int128_9, read_int128,
+ 9, [1, 2, 3, 4, 5, 6, 7, 8, 9]);
+#[cfg(byteorder_i128)]
+bench_num!(int128_10, read_int128,
+ 10, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);
+#[cfg(byteorder_i128)]
+bench_num!(int128_11, read_int128,
+ 11, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]);
+#[cfg(byteorder_i128)]
+bench_num!(int128_12, read_int128,
+ 12, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]);
+#[cfg(byteorder_i128)]
+bench_num!(int128_13, read_int128,
+ 13, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13]);
+#[cfg(byteorder_i128)]
+bench_num!(int128_14, read_int128,
+ 14, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14]);
+#[cfg(byteorder_i128)]
+bench_num!(int128_15, read_int128,
+ 15, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]);
+#[cfg(byteorder_i128)]
+bench_num!(int128_16, read_int128,
+ 16, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]);
+
+
+macro_rules! bench_slice {
+ ($name:ident, $numty:ty, $read:ident, $write:ident) => {
+ mod $name {
+ use std::mem::size_of;
+
+ use byteorder::{ByteOrder, BigEndian, LittleEndian};
+ use rand::{self, Rng};
+ use rand::distributions;
+ use test::Bencher;
+
+ #[bench]
+ fn read_big_endian(b: &mut Bencher) {
+ let mut numbers: Vec<$numty> = rand::thread_rng()
+ .sample_iter(&distributions::Standard)
+ .take(100000)
+ .collect();
+ let mut bytes = vec![0; numbers.len() * size_of::<$numty>()];
+ BigEndian::$write(&numbers, &mut bytes);
+
+ b.bytes = bytes.len() as u64;
+ b.iter(|| {
+ BigEndian::$read(&bytes, &mut numbers);
+ });
+ }
+
+ #[bench]
+ fn read_little_endian(b: &mut Bencher) {
+ let mut numbers: Vec<$numty> = rand::thread_rng()
+ .sample_iter(&distributions::Standard)
+ .take(100000)
+ .collect();
+ let mut bytes = vec![0; numbers.len() * size_of::<$numty>()];
+ LittleEndian::$write(&numbers, &mut bytes);
+
+ b.bytes = bytes.len() as u64;
+ b.iter(|| {
+ LittleEndian::$read(&bytes, &mut numbers);
+ });
+ }
+
+ #[bench]
+ fn write_big_endian(b: &mut Bencher) {
+ let numbers: Vec<$numty> = rand::thread_rng()
+ .sample_iter(&distributions::Standard)
+ .take(100000)
+ .collect();
+ let mut bytes = vec![0; numbers.len() * size_of::<$numty>()];
+
+ b.bytes = bytes.len() as u64;
+ b.iter(|| {
+ BigEndian::$write(&numbers, &mut bytes);
+ });
+ }
+
+ #[bench]
+ fn write_little_endian(b: &mut Bencher) {
+ let numbers: Vec<$numty> = rand::thread_rng()
+ .sample_iter(&distributions::Standard)
+ .take(100000)
+ .collect();
+ let mut bytes = vec![0; numbers.len() * size_of::<$numty>()];
+
+ b.bytes = bytes.len() as u64;
+ b.iter(|| {
+ LittleEndian::$write(&numbers, &mut bytes);
+ });
+ }
+ }
+ }
+}
+
+bench_slice!(slice_u64, u64, read_u64_into, write_u64_into);
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