85 lines
2.5 KiB
Rust
85 lines
2.5 KiB
Rust
// Copyright 2015, 2016 Ethcore (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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//! benchmarking for rlp
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//! should be started with:
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//! ```bash
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//! multirust run nightly cargo bench
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//! ```
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#![feature(test)]
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#![feature(asm)]
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extern crate test;
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extern crate ethcore_util;
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extern crate rand;
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use test::{Bencher, black_box};
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use ethcore_util::uint::*;
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#[bench]
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fn u256_add(b: &mut Bencher) {
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b.iter(|| {
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let n = black_box(10000);
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(0..n).fold(U256([rand::random::<u64>(), rand::random::<u64>(), rand::random::<u64>(), rand::random::<u64>()]), |old, new| { old.overflowing_add(U256::from(new)).0 })
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});
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}
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#[bench]
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fn u256_sub(b: &mut Bencher) {
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b.iter(|| {
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let n = black_box(10000);
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(0..n).fold(U256([rand::random::<u64>(), rand::random::<u64>(), rand::random::<u64>(), rand::random::<u64>()]), |old, new| { old.overflowing_sub(U256::from(new)).0 })
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});
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}
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#[bench]
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fn u512_sub(b: &mut Bencher) {
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b.iter(|| {
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let n = black_box(10000);
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(0..n).fold(U512([rand::random::<u64>(), rand::random::<u64>(), rand::random::<u64>(), rand::random::<u64>(),
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rand::random::<u64>(), rand::random::<u64>(), rand::random::<u64>(), rand::random::<u64>()]),
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|old, new| { old.overflowing_sub(U512([0, 0, 0, 0, 0, 0, 0, new])).0 })
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});
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}
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#[bench]
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fn u512_add(b: &mut Bencher) {
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b.iter(|| {
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let n = black_box(10000);
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(0..n).fold(U512([0, 0, 0, 0, 0, 0, 0, 0]),
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|old, new| { old.overflowing_add(U512([new, new, new, new, new, new, new, new])).0 })
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});
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}
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#[bench]
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fn u256_mul(b: &mut Bencher) {
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b.iter(|| {
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let n = black_box(10000);
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(0..n).fold(U256([rand::random::<u64>(), rand::random::<u64>(), rand::random::<u64>(), rand::random::<u64>()]), |old, new| { old.overflowing_mul(U256::from(new)).0 })
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});
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}
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#[bench]
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fn u128_mul(b: &mut Bencher) {
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b.iter(|| {
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let n = black_box(10000);
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(0..n).fold(U128([12345u64, 0u64]), |old, new| { old.overflowing_mul(U128::from(new)).0 })
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});
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}
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