This crate needs nightly. (for feature(asm))
OS: Ubuntu 18.04, CPU: AMD Ryzen 7 2700X, rustc: 1.47.0-nightly (6c8927b0c 2020-07-26)
```
reference::mulmod_u64 time: [174.98 ns 175.08 ns 175.18 ns]
change: [-0.4957% -0.3893% -0.2838%] (p = 0.00 < 0.05)
Change within noise threshold.
Found 10 outliers among 100 measurements (10.00%)
1 (1.00%) low severe
5 (5.00%) low mild
4 (4.00%) high mild
mulmod_u64 time: [10.355 ns 10.359 ns 10.363 ns]
change: [+0.3039% +0.4009% +0.4971%] (p = 0.00 < 0.05)
Change within noise threshold.
Found 2 outliers among 100 measurements (2.00%)
1 (1.00%) high mild
1 (1.00%) high severe
reference::mod_u128u64 time: [183.92 ns 184.04 ns 184.17 ns]
change: [+0.2122% +0.3338% +0.4534%] (p = 0.00 < 0.05)
Change within noise threshold.
Found 5 outliers among 100 measurements (5.00%)
3 (3.00%) low mild
1 (1.00%) high mild
1 (1.00%) high severe
mod_u128u64 time: [14.235 ns 14.242 ns 14.250 ns]
change: [+0.2390% +0.3663% +0.4827%] (p = 0.00 < 0.05)
Change within noise threshold.
Found 5 outliers among 100 measurements (5.00%)
3 (3.00%) low mild
2 (2.00%) high
```