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47 lines
2.2 KiB
Markdown
47 lines
2.2 KiB
Markdown
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# varint
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This package provides an optimized implementation of protobuf's varint encoding/decoding.
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It has no dependencies.
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Benchmarks comparing to a `binary.Uvarint`:
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```
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benchmark old ns/op new ns/op delta
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BenchmarkUvarint/1-8 4.13 2.85 -30.99%
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BenchmarkUvarint/1_large-8 4.01 2.28 -43.14%
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BenchmarkUvarint/2-8 6.23 2.87 -53.93%
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BenchmarkUvarint/2_large-8 5.60 2.86 -48.93%
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BenchmarkUvarint/3-8 6.55 3.44 -47.48%
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BenchmarkUvarint/3_large-8 6.54 2.86 -56.27%
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BenchmarkUvarint/4-8 7.30 3.71 -49.18%
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BenchmarkUvarint/4_large-8 7.46 3.10 -58.45%
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BenchmarkUvarint/5-8 8.31 4.12 -50.42%
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BenchmarkUvarint/5_large-8 8.56 3.48 -59.35%
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BenchmarkUvarint/6-8 9.42 4.66 -50.53%
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BenchmarkUvarint/6_large-8 9.91 4.07 -58.93%
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BenchmarkUvarint/7-8 10.6 5.28 -50.19%
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BenchmarkUvarint/7_large-8 11.0 4.70 -57.27%
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BenchmarkUvarint/8-8 11.7 6.02 -48.55%
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BenchmarkUvarint/8_large-8 12.1 5.19 -57.11%
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BenchmarkUvarint/9-8 12.9 6.83 -47.05%
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BenchmarkUvarint/9_large-8 13.1 5.71 -56.41%
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```
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It also provides additional functionality like `UvarintSize` (similar to `sov*` in `gogo/protobuf`):
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```
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benchmark old ns/op new ns/op delta
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BenchmarkUvarintSize/1-8 1.71 0.43 -74.85%
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BenchmarkUvarintSize/2-8 2.56 0.57 -77.73%
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BenchmarkUvarintSize/3-8 3.22 0.72 -77.64%
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BenchmarkUvarintSize/4-8 3.74 0.72 -80.75%
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BenchmarkUvarintSize/5-8 4.29 0.57 -86.71%
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BenchmarkUvarintSize/6-8 4.85 0.58 -88.04%
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BenchmarkUvarintSize/7-8 5.43 0.71 -86.92%
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BenchmarkUvarintSize/8-8 6.01 0.86 -85.69%
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BenchmarkUvarintSize/9-8 6.64 1.00 -84.94%
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```
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# License
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MIT
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