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## Benchmark results
- compile by rustc 1.69.0 (84c898d65 2023-04-16)
0. x86_64-unknown-linux- @i5-4570:
| `name` | `gnu:en` | `gnu:ja` | `musl:en` | `musl:ja` |
|:------------------------|------------:|------------:|------------:|------------:|
| std_memeq | 1.669 µs | 1.331 µs | 2.725 µs | 7.462 µs |
| libc_memeq | 1.660 µs | 1.315 µs | 2.725 µs | 7.507 µs |
| memx_memeq | 2.069 µs | 1.518 µs | 2.153 µs | 1.587 µs |
| memx_memeq_basic | 1.977 µs | 1.335 µs | 2.104 µs | 1.374 µs |
| memx_memeq_sse2 | 2.097 µs | 1.680 µs | 2.053 µs | 1.672 µs |
| memx_memeq_avx2 | 1.981 µs | 1.463 µs | 2.067 µs | 1.504 µs |
1. x86_64-unknown-linux- @Q6600:
| `name` | `gnu:en` | `gnu:ja` | `musl:en` | `musl:ja` |
|:------------------------|------------:|------------:|------------:|------------:|
| std_memeq | 6.881 µs | 7.346 µs | 8.493 µs | 17.076 µs |
| libc_memeq | 6.838 µs | 7.417 µs | 8.588 µs | 17.082 µs |
| memx_memeq | 6.318 µs | 5.443 µs | 6.280 µs | 5.215 µs |
| memx_memeq_basic | 5.877 µs | 3.744 µs | 5.811 µs | 3.485 µs |
| memx_memeq_sse2 | 6.022 µs | 5.401 µs | 6.196 µs | 5.229 µs |
2. i686-unknown-linux- @Q6600:
| `name` | `gnu:en` | `gnu:ja` | `musl:en` | `musl:ja` |
|:------------------------|------------:|------------:|------------:|------------:|
| std_memeq | 8.022 µs | 7.569 µs | 12.436 µs | 20.412 µs |
| libc_memeq | 7.979 µs | 7.351 µs | 11.977 µs | 20.912 µs |
| memx_memeq | 8.643 µs | 7.236 µs | 9.035 µs | 7.644 µs |
| memx_memeq_basic | 7.177 µs | 6.478 µs | 7.541 µs | 6.736 µs |
| memx_memeq_sse2 | 7.813 µs | 6.880 µs | 8.636 µs | 7.474 µs |
3. i586-unknown-linux- @Q6600:
| `name` | `gnu:en` | `gnu:ja` | `musl:en` | `musl:ja` |
|:------------------------|------------:|------------:|------------:|------------:|
| std_memeq | 7.753 µs | 7.696 µs | 12.372 µs | 20.998 µs |
| libc_memeq | 7.827 µs | 7.449 µs | 12.197 µs | 21.062 µs |
| memx_memeq | 8.990 µs | 7.192 µs | 8.658 µs | 7.541 µs |
| memx_memeq_basic | 8.759 µs | 6.960 µs | 9.664 µs | 8.118 µs |
- compile by rustc 1.53.0 (53cb7b09b 2021-06-17)
1. x86_64-unknown-linux-:
| `name` | `gnu:en` | `gnu:ja` | `musl:en` | `musl:ja` |
|:------------------------|------------:|------------:|------------:|------------:|
| std_memeq | 165.510 us | 168.340 us | 337.740 us | 356.760 us |
| libc_memeq | 166.160 us | 172.420 us | 342.770 us | 360.790 us |
| memx_memeq | 118.030 us | 118.830 us | 114.340 us | 108.960 us |
| memx_memeq_basic | 117.170 us | 118.780 us | 114.380 us | 109.280 us |
2. i686-unknown-linux-:
| `name` | `gnu:en` | `gnu:ja` | `musl:en` | `musl:ja` |
|:------------------------|------------:|------------:|------------:|------------:|
| std_memeq | 172.830 us | 193.700 us | 367.620 us | 517.440 us |
| libc_memeq | 173.100 us | 198.420 us | 370.670 us | 517.830 us |
| memx_memeq | 157.930 us | 159.710 us | 172.850 us | 153.050 us |
| memx_memeq_basic | 161.000 us | 157.600 us | 171.320 us | 152.750 us |
3. i586-unknown-linux-:
| `name` | `gnu:en` | `gnu:ja` | `musl:en` | `musl:ja` |
|:------------------------|------------:|------------:|------------:|------------:|
| std_memeq | 190.700 us | 246.930 us | 376.540 us | 510.110 us |
| libc_memeq | 168.630 us | 189.100 us | 357.910 us | 507.500 us |
| memx_memeq | 159.320 us | 153.230 us | 165.410 us | 152.640 us |
| memx_memeq_basic | 159.720 us | 154.340 us | 168.250 us | 153.200 us |
4. armv7-linux-androideabi:
| `name` | `gnu:en` | `gnu:ja` | `musl:en` | `musl:ja` |
|:------------------------|------------:|------------:|------------:|------------:|
| std_memeq | 1263.000 us | 1236.600 us | 1317.700 us | 1721.000 us |
| memx_memeq | 779.600 us | 752.600 us | 658.390 us | 604.610 us |
| memx_memeq_basic | 755.180 us | 746.410 us | 694.570 us | 598.540 us |
- `µs` is micro seconds
- `:en` is english haystack or short length.
- `:ja` is japanese haystack or long length.
- `gnu` is x86_64-unknown-linux-gnu
- `musl` is x86_64-unknown-linux-musl
- @i5-4570: bench on intel i5-4570 @ 3.2GHz
- @Q6600: bench on intel Q6600 @ 2.40GHz or armv7 1.5GHz