{"id":17640786,"url":"https://github.com/rekby/fastuuid","last_synced_at":"2025-06-17T00:35:26.165Z","repository":{"id":90769215,"uuid":"607466732","full_name":"rekby/fastuuid","owner":"rekby","description":"Fast implementation for 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Report Card](https://goreportcard.com/badge/github.com/rekby/fastuuid)](https://goreportcard.com/report/github.com/rekby/fastuuid)\n[![codecov](https://codecov.io/gh/rekby/fastuuid/branch/main/graph/badge.svg?token=AIGUP7QYV2)](https://codecov.io/gh/rekby/fastuuid)\n\nFast uuid library, now implemented only UUIDv4 (crypto-random) generators.\nIt generate UUID to string about 50-100ns with one allocation and good paralellism by cpu.\n\nCommand for install:\n\n```bash\ngo get github.com/rekby/fastuuid\n```\n\nExample:\n\n```golang\npackage main\n\nimport \"github.com/rekby/fastuuid\"\n\nfunc main(){\n\tfmt.Println(fastuuid.MustUUIDv4String())\n}\n\n```\n\nFor run benchmarks:\n\n```\ngit clone https://github.com/rekby/fastuuid.git\ncd fastuuid/benchmarks\ngo test -test.bench=. -v\n```\n\nResult for macbook pro M1:\n\n```\ngoos: darwin\ngoarch: arm64\npkg: github.com/rekby/fastuuid/benchmarks\nBenchmarkRekbyUUID/one-thread 13688407 85.92 ns/op 48 B/op 1 allocs/op\nBenchmarkRekbyUUID/multi-thread 25657815 51.81 ns/op 47 B/op 0 allocs/op\nBenchmarkGoogleUUID4/one-thread 2256043 530.5 ns/op 64 B/op 2 allocs/op\nBenchmarkGoogleUUID4/multi-thread 1897683 634.9 ns/op 63 B/op 1 allocs/op\nBenchmarkSatoriUUID4/one-thread 2277092 531.1 ns/op 64 B/op 2 allocs/op\nBenchmarkSatoriUUID4/multi-thread 1950952 624.3 ns/op 62 B/op 1 allocs/op\nBenchmarkGofrs/one-thread 2265781 530.3 ns/op 64 B/op 2 allocs/op\nBenchmarkGofrs/multi-thread 1912966 635.9 ns/op 63 B/op 1 allocs/op\nBenchmarkRogpeppeUnsecuredBecauseItCounter/one-thread 28806307 40.35 ns/op 48 B/op 1 allocs/op\nBenchmarkRogpeppeUnsecuredBecauseItCounter/multi-thread 7198768 168.0 ns/op 47 B/op 0 allocs/op\nBenchmarkJakehl/one-thread 1956322 611.8 ns/op 144 B/op 5 allocs/op\nBenchmarkJakehl/multi-thread 1963675 643.4 ns/op 142 B/op 4 allocs/op\nBenchmarkRwxrob/one-thread 1620858 740.5 ns/op 184 B/op 7 allocs/op\nBenchmarkRwxrob/multi-thread 1870315 644.6 ns/op 182 B/op 6 allocs/op\n```\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Frekby%2Ffastuuid","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Frekby%2Ffastuuid","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Frekby%2Ffastuuid/lists"}