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39 lines
1.9 KiB
Markdown
39 lines
1.9 KiB
Markdown
# XXH3
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[](https://godoc.org/github.com/zeebo/xxh3)
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[](https://sourcegraph.com/github.com/zeebo/xxh3?badge)
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[](https://goreportcard.com/report/github.com/zeebo/xxh3)
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This package is a port of the [xxh3](https://github.com/Cyan4973/xxHash) library to Go.
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Upstream has fixed the output as of v0.8.0, and this package matches that.
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---
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# Benchmarks
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Run on my `i7-8850H CPU @ 2.60GHz`
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## Small Sizes
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| Bytes | Rate |
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|-----------|--------------------------------------|
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|` 0 ` |` 0.74 ns/op ` |
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|` 1-3 ` |` 4.19 ns/op (0.24 GB/s - 0.71 GB/s) `|
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|` 4-8 ` |` 4.16 ns/op (0.97 GB/s - 1.98 GB/s) `|
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|` 9-16 ` |` 4.46 ns/op (2.02 GB/s - 3.58 GB/s) `|
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|` 17-32 ` |` 6.22 ns/op (2.76 GB/s - 5.15 GB/s) `|
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|` 33-64 ` |` 8.00 ns/op (4.13 GB/s - 8.13 GB/s) `|
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|` 65-96 ` |` 11.0 ns/op (5.91 GB/s - 8.84 GB/s) `|
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|` 97-128 ` |` 12.8 ns/op (7.68 GB/s - 10.0 GB/s) `|
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## Large Sizes
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| Bytes | Rate | SSE2 Rate | AVX2 Rate |
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|---------|--------------------------|--------------------------|--------------------------|
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|` 129 ` |` 13.6 ns/op (9.45 GB/s) `| | |
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|` 240 ` |` 23.8 ns/op (10.1 GB/s) `| | |
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|` 241 ` |` 40.5 ns/op (5.97 GB/s) `|` 23.3 ns/op (10.4 GB/s) `|` 20.1 ns/op (12.0 GB/s) `|
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|` 512 ` |` 69.8 ns/op (7.34 GB/s) `|` 30.4 ns/op (16.9 GB/s) `|` 24.7 ns/op (20.7 GB/s) `|
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|` 1024 ` |` 132 ns/op (7.77 GB/s) `|` 48.9 ns/op (20.9 GB/s) `|` 37.7 ns/op (27.2 GB/s) `|
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|` 100KB `|` 13.0 us/op (7.88 GB/s) `|` 4.05 us/op (25.3 GB/s) `|` 2.31 us/op (44.3 GB/s) `|
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