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109 lines
5.3 KiB
Markdown
109 lines
5.3 KiB
Markdown
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# go-hex
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[](https://godoc.org/github.com/tmthrgd/go-hex)
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[](https://travis-ci.org/tmthrgd/go-hex)
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An efficient hexadecimal implementation for Golang.
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go-hex provides hex encoding and decoding using SSE/AVX instructions on x86-64.
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## Download
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```
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go get github.com/tmthrgd/go-hex
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```
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## Benchmark
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go-hex:
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```
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BenchmarkEncode/15-8 100000000 17.4 ns/op 863.43 MB/s
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BenchmarkEncode/32-8 100000000 11.9 ns/op 2690.43 MB/s
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BenchmarkEncode/128-8 100000000 21.4 ns/op 5982.92 MB/s
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BenchmarkEncode/1k-8 20000000 88.5 ns/op 11572.80 MB/s
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BenchmarkEncode/16k-8 1000000 1254 ns/op 13058.10 MB/s
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BenchmarkEncode/128k-8 100000 12965 ns/op 10109.53 MB/s
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BenchmarkEncode/1M-8 10000 119465 ns/op 8777.23 MB/s
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BenchmarkEncode/16M-8 500 3530380 ns/op 4752.24 MB/s
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BenchmarkEncode/128M-8 50 28001913 ns/op 4793.16 MB/s
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BenchmarkDecode/14-8 100000000 12.6 ns/op 1110.01 MB/s
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BenchmarkDecode/32-8 100000000 12.5 ns/op 2558.10 MB/s
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BenchmarkDecode/128-8 50000000 27.2 ns/op 4697.66 MB/s
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BenchmarkDecode/1k-8 10000000 168 ns/op 6093.43 MB/s
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BenchmarkDecode/16k-8 500000 2543 ns/op 6442.09 MB/s
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BenchmarkDecode/128k-8 100000 20339 ns/op 6444.24 MB/s
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BenchmarkDecode/1M-8 10000 164313 ns/op 6381.57 MB/s
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BenchmarkDecode/16M-8 500 3099822 ns/op 5412.31 MB/s
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BenchmarkDecode/128M-8 50 24865822 ns/op 5397.68 MB/s
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```
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[encoding/hex](https://golang.org/pkg/encoding/hex/):
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```
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BenchmarkRefEncode/15-8 50000000 36.1 ns/op 415.07 MB/s
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BenchmarkRefEncode/32-8 20000000 72.9 ns/op 439.14 MB/s
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BenchmarkRefEncode/128-8 5000000 289 ns/op 441.54 MB/s
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BenchmarkRefEncode/1k-8 1000000 2268 ns/op 451.49 MB/s
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BenchmarkRefEncode/16k-8 30000 39110 ns/op 418.91 MB/s
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BenchmarkRefEncode/128k-8 5000 291260 ns/op 450.02 MB/s
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BenchmarkRefEncode/1M-8 1000 2277578 ns/op 460.39 MB/s
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BenchmarkRefEncode/16M-8 30 37087543 ns/op 452.37 MB/s
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BenchmarkRefEncode/128M-8 5 293611713 ns/op 457.13 MB/s
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BenchmarkRefDecode/14-8 30000000 53.7 ns/op 260.49 MB/s
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BenchmarkRefDecode/32-8 10000000 128 ns/op 248.44 MB/s
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BenchmarkRefDecode/128-8 3000000 481 ns/op 265.95 MB/s
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BenchmarkRefDecode/1k-8 300000 4172 ns/op 245.43 MB/s
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BenchmarkRefDecode/16k-8 10000 111989 ns/op 146.30 MB/s
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BenchmarkRefDecode/128k-8 2000 909077 ns/op 144.18 MB/s
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BenchmarkRefDecode/1M-8 200 7275779 ns/op 144.12 MB/s
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BenchmarkRefDecode/16M-8 10 116574839 ns/op 143.92 MB/s
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BenchmarkRefDecode/128M-8 2 933871637 ns/op 143.72 MB/s
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```
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[encoding/hex](https://golang.org/pkg/encoding/hex/) -> go-hex:
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```
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benchmark old ns/op new ns/op delta
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BenchmarkEncode/15-8 36.1 17.4 -51.80%
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BenchmarkEncode/32-8 72.9 11.9 -83.68%
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BenchmarkEncode/128-8 289 21.4 -92.60%
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BenchmarkEncode/1k-8 2268 88.5 -96.10%
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BenchmarkEncode/16k-8 39110 1254 -96.79%
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BenchmarkEncode/128k-8 291260 12965 -95.55%
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BenchmarkEncode/1M-8 2277578 119465 -94.75%
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BenchmarkEncode/16M-8 37087543 3530380 -90.48%
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BenchmarkEncode/128M-8 293611713 28001913 -90.46%
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BenchmarkDecode/14-8 53.7 12.6 -76.54%
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BenchmarkDecode/32-8 128 12.5 -90.23%
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BenchmarkDecode/128-8 481 27.2 -94.35%
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BenchmarkDecode/1k-8 4172 168 -95.97%
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BenchmarkDecode/16k-8 111989 2543 -97.73%
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BenchmarkDecode/128k-8 909077 20339 -97.76%
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BenchmarkDecode/1M-8 7275779 164313 -97.74%
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BenchmarkDecode/16M-8 116574839 3099822 -97.34%
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BenchmarkDecode/128M-8 933871637 24865822 -97.34%
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benchmark old MB/s new MB/s speedup
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BenchmarkEncode/15-8 415.07 863.43 2.08x
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BenchmarkEncode/32-8 439.14 2690.43 6.13x
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BenchmarkEncode/128-8 441.54 5982.92 13.55x
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BenchmarkEncode/1k-8 451.49 11572.80 25.63x
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BenchmarkEncode/16k-8 418.91 13058.10 31.17x
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BenchmarkEncode/128k-8 450.02 10109.53 22.46x
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BenchmarkEncode/1M-8 460.39 8777.23 19.06x
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BenchmarkEncode/16M-8 452.37 4752.24 10.51x
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BenchmarkEncode/128M-8 457.13 4793.16 10.49x
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BenchmarkDecode/14-8 260.49 1110.01 4.26x
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BenchmarkDecode/32-8 248.44 2558.10 10.30x
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BenchmarkDecode/128-8 265.95 4697.66 17.66x
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BenchmarkDecode/1k-8 245.43 6093.43 24.83x
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BenchmarkDecode/16k-8 146.30 6442.09 44.03x
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BenchmarkDecode/128k-8 144.18 6444.24 44.70x
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BenchmarkDecode/1M-8 144.12 6381.57 44.28x
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BenchmarkDecode/16M-8 143.92 5412.31 37.61x
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BenchmarkDecode/128M-8 143.72 5397.68 37.56x
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```
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## License
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Unless otherwise noted, the go-hex source files are distributed under the Modified BSD License
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found in the LICENSE file.
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