<style>
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.benchstat tbody td:nth-child(1n+2):not(.note) { text-align: right; padding: 0em 1em; }
.benchstat tr:not(.configs) th { border-top: 1px solid #666; border-bottom: 1px solid #ccc; }
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<table class='benchstat '>
<tr class='configs'><th><th>old.txt<th>new.txt<th>slashslash4.txt


<tbody>
<tr><th><th colspan='3' class='metric'>time/op
<tr><td>CRC32/poly=IEEE/size=15/align=0-8<td>46.9ns ± 8%<td>44.5ns ± 3%<td>
<tr><td>CRC32/poly=IEEE/size=15/align=1-8<td>44.7ns ± 5%<td>44.5ns ± 4%<td>
<tr><td>CRC32/poly=IEEE/size=40/align=0-8<td>41.0ns ± 1%<td>42.5ns ± 6%<td>42.1ns ± 3%
<tr><td>CRC32/poly=IEEE/size=40/align=1-8<td>41.1ns ± 1%<td>42.0ns ± 3%<td>41.7ns ± 5%
<tr><td>CRC32/poly=IEEE/size=512/align=0-8<td>238ns ± 5%<td>57ns ± 3%<td>
<tr><td>CRC32/poly=IEEE/size=512/align=1-8<td>236ns ± 3%<td>57ns ± 3%<td>
<tr><td>CRC32/poly=IEEE/size=1kB/align=0-8<td>452ns ± 4%<td>94ns ± 2%<td>
<tr><td>CRC32/poly=IEEE/size=1kB/align=1-8<td>444ns ± 2%<td>93ns ± 2%<td>
<tr><td>CRC32/poly=IEEE/size=4kB/align=0-8<td>1.74µs ± 8%<td>0.30µs ± 1%<td>1.68µs ± 2%
<tr><td>CRC32/poly=IEEE/size=4kB/align=1-8<td>1.76µs ± 6%<td>0.30µs ± 3%<td>1.69µs ± 4%
<tr><td>CRC32/poly=IEEE/size=32kB/align=0-8<td>15.0µs ± 7%<td>2.2µs ± 3%<td>
<tr><td>CRC32/poly=IEEE/size=32kB/align=1-8<td>14.2µs ± 7%<td>2.2µs ± 3%<td>
<tr><td>CRC32/poly=Castagnoli/size=15/align=0-8<td>16.4ns ± 3%<td>16.3ns ± 2%<td>
<tr><td>CRC32/poly=Castagnoli/size=15/align=1-8<td>17.2ns ± 2%<td>17.3ns ± 2%<td>
<tr><td>CRC32/poly=Castagnoli/size=40/align=0-8<td>17.4ns ± 2%<td>17.5ns ± 4%<td>18.6ns ±11%
<tr><td>CRC32/poly=Castagnoli/size=40/align=1-8<td>19.7ns ± 3%<td>19.4ns ± 2%<td>19.6ns ± 2%
<tr><td>CRC32/poly=Castagnoli/size=512/align=0-8<td>40.2ns ± 2%<td>40.1ns ± 4%<td>
<tr><td>CRC32/poly=Castagnoli/size=512/align=1-8<td>42.1ns ± 3%<td>41.9ns ± 2%<td>
<tr><td>CRC32/poly=Castagnoli/size=1kB/align=0-8<td>65.5ns ± 1%<td>66.2ns ± 1%<td>
<tr><td>CRC32/poly=Castagnoli/size=1kB/align=1-8<td>70.1ns ± 6%<td>68.5ns ± 2%<td>
<tr><td>CRC32/poly=Castagnoli/size=4kB/align=0-8<td>163ns ± 5%<td>159ns ± 3%<td>161ns ± 8%
<tr><td>CRC32/poly=Castagnoli/size=4kB/align=1-8<td>169ns ± 6%<td>162ns ± 3%<td>170ns ± 8%
<tr><td>CRC32/poly=Castagnoli/size=32kB/align=0-8<td>1.22µs ± 4%<td>1.21µs ± 3%<td>
<tr><td>CRC32/poly=Castagnoli/size=32kB/align=1-8<td>1.26µs ± 3%<td>1.22µs ± 4%<td>
<tr><td>CRC32/poly=Koopman/size=15/align=0-8<td>36.5ns ±11%<td>35.6ns ± 3%<td>
<tr><td>CRC32/poly=Koopman/size=15/align=1-8<td>35.1ns ± 5%<td>35.5ns ± 1%<td>
<tr><td>CRC32/poly=Koopman/size=40/align=0-8<td>91.6ns ± 9%<td>87.6ns ± 2%<td>93.8ns ±13%
<tr><td>CRC32/poly=Koopman/size=40/align=1-8<td>91.1ns ± 6%<td>88.0ns ± 3%<td>86.9ns ± 3%
<tr><td>CRC32/poly=Koopman/size=512/align=0-8<td>1.13µs ± 5%<td>1.08µs ± 3%<td>
<tr><td>CRC32/poly=Koopman/size=512/align=1-8<td>1.13µs ± 6%<td>1.17µs ± 8%<td>
<tr><td>CRC32/poly=Koopman/size=1kB/align=0-8<td>2.24µs ± 6%<td>2.34µs ± 4%<td>
<tr><td>CRC32/poly=Koopman/size=1kB/align=1-8<td>2.15µs ± 2%<td>2.36µs ± 5%<td>
<tr><td>CRC32/poly=Koopman/size=4kB/align=0-8<td>9.03µs ± 6%<td>9.00µs ± 6%<td>9.08µs ± 8%
<tr><td>CRC32/poly=Koopman/size=4kB/align=1-8<td>8.94µs ±10%<td>9.05µs ±12%<td>9.46µs ± 8%
<tr><td>CRC32/poly=Koopman/size=32kB/align=0-8<td>72.4µs ± 9%<td>72.9µs ± 4%<td>
<tr><td>CRC32/poly=Koopman/size=32kB/align=1-8<td>69.6µs ± 3%<td>74.3µs ± 3%<td>
<tr><td>&nbsp;
</tbody>

<tbody>
<tr><th><th colspan='3' class='metric'>speed
<tr><td>CRC32/poly=IEEE/size=15/align=0-8<td>321MB/s ± 8%<td>337MB/s ± 3%<td>
<tr><td>CRC32/poly=IEEE/size=15/align=1-8<td>336MB/s ± 4%<td>337MB/s ± 4%<td>
<tr><td>CRC32/poly=IEEE/size=40/align=0-8<td>975MB/s ± 1%<td>942MB/s ± 5%<td>951MB/s ± 3%
<tr><td>CRC32/poly=IEEE/size=40/align=1-8<td>974MB/s ± 1%<td>952MB/s ± 3%<td>960MB/s ± 4%
<tr><td>CRC32/poly=IEEE/size=512/align=0-8<td>2.15GB/s ± 4%<td>8.97GB/s ± 3%<td>
<tr><td>CRC32/poly=IEEE/size=512/align=1-8<td>2.17GB/s ± 3%<td>8.96GB/s ± 3%<td>
<tr><td>CRC32/poly=IEEE/size=1kB/align=0-8<td>2.26GB/s ± 4%<td>10.88GB/s ± 2%<td>
<tr><td>CRC32/poly=IEEE/size=1kB/align=1-8<td>2.31GB/s ± 2%<td>10.98GB/s ± 2%<td>
<tr><td>CRC32/poly=IEEE/size=4kB/align=0-8<td>2.36GB/s ± 7%<td>13.73GB/s ± 1%<td>2.43GB/s ± 2%
<tr><td>CRC32/poly=IEEE/size=4kB/align=1-8<td>2.33GB/s ± 6%<td>13.68GB/s ± 3%<td>2.42GB/s ± 4%
<tr><td>CRC32/poly=IEEE/size=32kB/align=0-8<td>2.19GB/s ± 7%<td>15.19GB/s ± 3%<td>
<tr><td>CRC32/poly=IEEE/size=32kB/align=1-8<td>2.31GB/s ± 8%<td>15.04GB/s ± 3%<td>
<tr><td>CRC32/poly=Castagnoli/size=15/align=0-8<td>916MB/s ± 2%<td>920MB/s ± 2%<td>
<tr><td>CRC32/poly=Castagnoli/size=15/align=1-8<td>870MB/s ± 2%<td>867MB/s ± 2%<td>
<tr><td>CRC32/poly=Castagnoli/size=40/align=0-8<td>2.30GB/s ± 2%<td>2.28GB/s ± 4%<td>2.16GB/s ±11%
<tr><td>CRC32/poly=Castagnoli/size=40/align=1-8<td>2.03GB/s ± 3%<td>2.06GB/s ± 2%<td>2.04GB/s ± 2%
<tr><td>CRC32/poly=Castagnoli/size=512/align=0-8<td>12.7GB/s ± 2%<td>12.8GB/s ± 4%<td>
<tr><td>CRC32/poly=Castagnoli/size=512/align=1-8<td>12.1GB/s ± 3%<td>12.2GB/s ± 1%<td>
<tr><td>CRC32/poly=Castagnoli/size=1kB/align=0-8<td>15.6GB/s ± 1%<td>15.5GB/s ± 1%<td>
<tr><td>CRC32/poly=Castagnoli/size=1kB/align=1-8<td>14.6GB/s ± 6%<td>15.0GB/s ± 2%<td>
<tr><td>CRC32/poly=Castagnoli/size=4kB/align=0-8<td>25.1GB/s ± 5%<td>25.7GB/s ± 3%<td>25.4GB/s ± 7%
<tr><td>CRC32/poly=Castagnoli/size=4kB/align=1-8<td>24.1GB/s ± 6%<td>25.3GB/s ± 3%<td>24.1GB/s ± 8%
<tr><td>CRC32/poly=Castagnoli/size=32kB/align=0-8<td>26.9GB/s ± 4%<td>26.8GB/s ± 5%<td>
<tr><td>CRC32/poly=Castagnoli/size=32kB/align=1-8<td>25.9GB/s ± 3%<td>26.8GB/s ± 4%<td>
<tr><td>CRC32/poly=Koopman/size=15/align=0-8<td>412MB/s ±10%<td>421MB/s ± 3%<td>
<tr><td>CRC32/poly=Koopman/size=15/align=1-8<td>427MB/s ± 5%<td>422MB/s ± 1%<td>
<tr><td>CRC32/poly=Koopman/size=40/align=0-8<td>437MB/s ± 9%<td>456MB/s ± 2%<td>428MB/s ±12%
<tr><td>CRC32/poly=Koopman/size=40/align=1-8<td>440MB/s ± 6%<td>455MB/s ± 3%<td>461MB/s ± 3%
<tr><td>CRC32/poly=Koopman/size=512/align=0-8<td>453MB/s ± 5%<td>476MB/s ± 3%<td>
<tr><td>CRC32/poly=Koopman/size=512/align=1-8<td>455MB/s ± 6%<td>440MB/s ± 8%<td>
<tr><td>CRC32/poly=Koopman/size=1kB/align=0-8<td>452MB/s ± 9%<td>438MB/s ± 4%<td>
<tr><td>CRC32/poly=Koopman/size=1kB/align=1-8<td>477MB/s ± 2%<td>434MB/s ± 5%<td>
<tr><td>CRC32/poly=Koopman/size=4kB/align=0-8<td>454MB/s ± 5%<td>455MB/s ± 6%<td>452MB/s ± 8%
<tr><td>CRC32/poly=Koopman/size=4kB/align=1-8<td>459MB/s ± 9%<td>455MB/s ±11%<td>434MB/s ± 9%
<tr><td>CRC32/poly=Koopman/size=32kB/align=0-8<td>453MB/s ± 8%<td>450MB/s ± 4%<td>
<tr><td>CRC32/poly=Koopman/size=32kB/align=1-8<td>471MB/s ± 3%<td>441MB/s ± 3%<td>
<tr><td>&nbsp;
</tbody>

</table>