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https://github.com/tannerryan/ring

Package ring provides a high performance and thread safe Go implementation of a bloom filter.
https://github.com/tannerryan/ring

go golang

Last synced: about 2 months ago
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Package ring provides a high performance and thread safe Go implementation of a bloom filter.

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# ring - high performance bloom filter
[![Build
Status](https://img.shields.io/travis/tannerryan/ring.svg?style=flat-square)](https://travis-ci.org/tannerryan/ring)
[![codecov](https://img.shields.io/codecov/c/github/tannerryan/ring.svg?style=flat-square)](https://codecov.io/gh/tannerryan/ring)
[![Go Report
Card](https://goreportcard.com/badge/github.com/tannerryan/ring?style=flat-square)](https://goreportcard.com/report/github.com/tannerryan/ring)
[![PkgGoDev](https://pkg.go.dev/badge/github.com/tannerryan/ring?tab=doc)](https://pkg.go.dev/github.com/tannerryan/ring?tab=doc)
[![GitHub
license](https://img.shields.io/github/license/tannerryan/ring.svg?style=flat-square)](https://github.com/tannerryan/ring/blob/master/LICENSE)
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Package ring provides a high performance and thread safe Go implementation of a
bloom filter.

## Usage
Please see the [godoc](https://godoc.org/github.com/tannerryan/ring) for
usage.

## Accuracy
Running `make` will perform unit tests, comparing the target false positive rate
with the actual rate. Here is a test against 1 million elements with a targeted
false positive rate of 0.1%. Tests fail if the number of false positives exceeds
the target.
```
=== RUN TestBadParameters
--- PASS: TestBadParameters (0.00s)
=== RUN TestReset
--- PASS: TestReset (0.26s)
=== RUN TestData
--- PASS: TestData (14.07s)
=== RUN TestMerge
--- PASS: TestMerge (13.78s)
=== RUN TestMarshal
--- PASS: TestMarshal (14.48s)
PASS
>> Number of elements: 1000000
>> Target false positive rate: 0.001000
>> Number of false positives: 99
>> Actual false positive rate: 0.000099
>> Number of false negatives: 0
>> Actual false negative rate: 0.000000
>> Benchmark Add(): 10000000 158 ns/op
>> Benchmark Test(): 10000000 173 ns/op
ok command-line-arguments 47.914s
```

## License
Copyright (c) 2019 Tanner Ryan. All rights reserved. Use of this source code is
governed by a BSD-style license that can be found in the LICENSE file.