327 lines
9.9 KiB
Rust
327 lines
9.9 KiB
Rust
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#![feature(test)]
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extern crate test;
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macro_rules! bench_num {
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($name:ident, $read:ident, $bytes:expr, $data:expr) => {
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mod $name {
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use byteorder::{
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BigEndian, ByteOrder, LittleEndian, NativeEndian,
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};
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use test::black_box as bb;
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use test::Bencher;
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const NITER: usize = 100_000;
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#[bench]
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fn read_big_endian(b: &mut Bencher) {
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let buf = $data;
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b.iter(|| {
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for _ in 0..NITER {
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bb(BigEndian::$read(&buf, $bytes));
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}
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});
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}
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#[bench]
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fn read_little_endian(b: &mut Bencher) {
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let buf = $data;
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b.iter(|| {
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for _ in 0..NITER {
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bb(LittleEndian::$read(&buf, $bytes));
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}
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});
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}
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#[bench]
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fn read_native_endian(b: &mut Bencher) {
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let buf = $data;
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b.iter(|| {
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for _ in 0..NITER {
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bb(NativeEndian::$read(&buf, $bytes));
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}
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});
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}
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}
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};
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($ty:ident, $max:ident,
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$read:ident, $write:ident, $size:expr, $data:expr) => {
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mod $ty {
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use byteorder::{
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BigEndian, ByteOrder, LittleEndian, NativeEndian,
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};
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use std::$ty;
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use test::black_box as bb;
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use test::Bencher;
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const NITER: usize = 100_000;
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#[bench]
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fn read_big_endian(b: &mut Bencher) {
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let buf = $data;
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b.iter(|| {
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for _ in 0..NITER {
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bb(BigEndian::$read(&buf));
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}
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});
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}
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#[bench]
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fn read_little_endian(b: &mut Bencher) {
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let buf = $data;
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b.iter(|| {
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for _ in 0..NITER {
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bb(LittleEndian::$read(&buf));
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}
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});
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}
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#[bench]
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fn read_native_endian(b: &mut Bencher) {
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let buf = $data;
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b.iter(|| {
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for _ in 0..NITER {
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bb(NativeEndian::$read(&buf));
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}
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});
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}
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#[bench]
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fn write_big_endian(b: &mut Bencher) {
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let mut buf = $data;
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let n = $ty::$max;
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b.iter(|| {
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for _ in 0..NITER {
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bb(BigEndian::$write(&mut buf, n));
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}
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});
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}
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#[bench]
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fn write_little_endian(b: &mut Bencher) {
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let mut buf = $data;
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let n = $ty::$max;
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b.iter(|| {
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for _ in 0..NITER {
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bb(LittleEndian::$write(&mut buf, n));
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}
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});
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}
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#[bench]
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fn write_native_endian(b: &mut Bencher) {
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let mut buf = $data;
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let n = $ty::$max;
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b.iter(|| {
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for _ in 0..NITER {
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bb(NativeEndian::$write(&mut buf, n));
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}
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});
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}
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}
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};
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}
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bench_num!(u16, MAX, read_u16, write_u16, 2, [1, 2]);
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bench_num!(i16, MAX, read_i16, write_i16, 2, [1, 2]);
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bench_num!(u32, MAX, read_u32, write_u32, 4, [1, 2, 3, 4]);
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bench_num!(i32, MAX, read_i32, write_i32, 4, [1, 2, 3, 4]);
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bench_num!(u64, MAX, read_u64, write_u64, 8, [1, 2, 3, 4, 5, 6, 7, 8]);
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bench_num!(i64, MAX, read_i64, write_i64, 8, [1, 2, 3, 4, 5, 6, 7, 8]);
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bench_num!(f32, MAX, read_f32, write_f32, 4, [1, 2, 3, 4]);
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bench_num!(f64, MAX, read_f64, write_f64, 8, [1, 2, 3, 4, 5, 6, 7, 8]);
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bench_num!(uint_1, read_uint, 1, [1]);
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bench_num!(uint_2, read_uint, 2, [1, 2]);
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bench_num!(uint_3, read_uint, 3, [1, 2, 3]);
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bench_num!(uint_4, read_uint, 4, [1, 2, 3, 4]);
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bench_num!(uint_5, read_uint, 5, [1, 2, 3, 4, 5]);
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bench_num!(uint_6, read_uint, 6, [1, 2, 3, 4, 5, 6]);
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bench_num!(uint_7, read_uint, 7, [1, 2, 3, 4, 5, 6, 7]);
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bench_num!(uint_8, read_uint, 8, [1, 2, 3, 4, 5, 6, 7, 8]);
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bench_num!(int_1, read_int, 1, [1]);
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bench_num!(int_2, read_int, 2, [1, 2]);
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bench_num!(int_3, read_int, 3, [1, 2, 3]);
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bench_num!(int_4, read_int, 4, [1, 2, 3, 4]);
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bench_num!(int_5, read_int, 5, [1, 2, 3, 4, 5]);
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bench_num!(int_6, read_int, 6, [1, 2, 3, 4, 5, 6]);
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bench_num!(int_7, read_int, 7, [1, 2, 3, 4, 5, 6, 7]);
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bench_num!(int_8, read_int, 8, [1, 2, 3, 4, 5, 6, 7, 8]);
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bench_num!(
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u128,
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MAX,
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read_u128,
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write_u128,
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16,
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[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]
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);
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bench_num!(
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i128,
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MAX,
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read_i128,
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write_i128,
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16,
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[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]
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);
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bench_num!(uint128_1, read_uint128, 1, [1]);
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bench_num!(uint128_2, read_uint128, 2, [1, 2]);
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bench_num!(uint128_3, read_uint128, 3, [1, 2, 3]);
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bench_num!(uint128_4, read_uint128, 4, [1, 2, 3, 4]);
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bench_num!(uint128_5, read_uint128, 5, [1, 2, 3, 4, 5]);
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bench_num!(uint128_6, read_uint128, 6, [1, 2, 3, 4, 5, 6]);
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bench_num!(uint128_7, read_uint128, 7, [1, 2, 3, 4, 5, 6, 7]);
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bench_num!(uint128_8, read_uint128, 8, [1, 2, 3, 4, 5, 6, 7, 8]);
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bench_num!(uint128_9, read_uint128, 9, [1, 2, 3, 4, 5, 6, 7, 8, 9]);
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bench_num!(uint128_10, read_uint128, 10, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);
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bench_num!(uint128_11, read_uint128, 11, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]);
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bench_num!(
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uint128_12,
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read_uint128,
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12,
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[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]
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);
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bench_num!(
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uint128_13,
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read_uint128,
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13,
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[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13]
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);
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bench_num!(
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uint128_14,
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read_uint128,
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14,
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[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14]
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);
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bench_num!(
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uint128_15,
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read_uint128,
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15,
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[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]
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);
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bench_num!(
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uint128_16,
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read_uint128,
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16,
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[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]
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);
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bench_num!(int128_1, read_int128, 1, [1]);
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bench_num!(int128_2, read_int128, 2, [1, 2]);
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bench_num!(int128_3, read_int128, 3, [1, 2, 3]);
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bench_num!(int128_4, read_int128, 4, [1, 2, 3, 4]);
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bench_num!(int128_5, read_int128, 5, [1, 2, 3, 4, 5]);
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bench_num!(int128_6, read_int128, 6, [1, 2, 3, 4, 5, 6]);
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bench_num!(int128_7, read_int128, 7, [1, 2, 3, 4, 5, 6, 7]);
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bench_num!(int128_8, read_int128, 8, [1, 2, 3, 4, 5, 6, 7, 8]);
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bench_num!(int128_9, read_int128, 9, [1, 2, 3, 4, 5, 6, 7, 8, 9]);
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bench_num!(int128_10, read_int128, 10, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);
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bench_num!(int128_11, read_int128, 11, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]);
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bench_num!(
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int128_12,
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read_int128,
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12,
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[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]
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);
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bench_num!(
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int128_13,
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read_int128,
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13,
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[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13]
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);
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bench_num!(
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int128_14,
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read_int128,
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14,
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[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14]
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);
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bench_num!(
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int128_15,
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read_int128,
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15,
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[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]
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);
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bench_num!(
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int128_16,
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read_int128,
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16,
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[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]
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);
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macro_rules! bench_slice {
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($name:ident, $numty:ty, $read:ident, $write:ident) => {
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mod $name {
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use std::mem::size_of;
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use byteorder::{BigEndian, ByteOrder, LittleEndian};
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use rand::distributions;
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use rand::{self, Rng};
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use test::Bencher;
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#[bench]
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fn read_big_endian(b: &mut Bencher) {
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let mut numbers: Vec<$numty> = rand::thread_rng()
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.sample_iter(&distributions::Standard)
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.take(100000)
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.collect();
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let mut bytes = vec![0; numbers.len() * size_of::<$numty>()];
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BigEndian::$write(&numbers, &mut bytes);
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b.bytes = bytes.len() as u64;
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b.iter(|| {
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BigEndian::$read(&bytes, &mut numbers);
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});
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}
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#[bench]
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fn read_little_endian(b: &mut Bencher) {
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let mut numbers: Vec<$numty> = rand::thread_rng()
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.sample_iter(&distributions::Standard)
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.take(100000)
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.collect();
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let mut bytes = vec![0; numbers.len() * size_of::<$numty>()];
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LittleEndian::$write(&numbers, &mut bytes);
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b.bytes = bytes.len() as u64;
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b.iter(|| {
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LittleEndian::$read(&bytes, &mut numbers);
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});
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}
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#[bench]
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fn write_big_endian(b: &mut Bencher) {
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let numbers: Vec<$numty> = rand::thread_rng()
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.sample_iter(&distributions::Standard)
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.take(100000)
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.collect();
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let mut bytes = vec![0; numbers.len() * size_of::<$numty>()];
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b.bytes = bytes.len() as u64;
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b.iter(|| {
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BigEndian::$write(&numbers, &mut bytes);
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});
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}
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#[bench]
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fn write_little_endian(b: &mut Bencher) {
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let numbers: Vec<$numty> = rand::thread_rng()
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.sample_iter(&distributions::Standard)
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.take(100000)
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.collect();
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let mut bytes = vec![0; numbers.len() * size_of::<$numty>()];
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b.bytes = bytes.len() as u64;
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b.iter(|| {
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LittleEndian::$write(&numbers, &mut bytes);
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});
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}
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}
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};
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}
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bench_slice!(slice_u16, u16, read_u16_into, write_u16_into);
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bench_slice!(slice_u64, u64, read_u64_into, write_u64_into);
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bench_slice!(slice_i64, i64, read_i64_into, write_i64_into);
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