iOS_benchmark_cn

MMKV for iOS

MMKV 是基于 mmap 内存映射的 key-value 组件，底层序列化/反序列化使用 protobuf 实现，性能高，稳定性强。从 2015 年中至今在微信上使用，其性能和稳定性经过了时间的验证。近期也已移植到 Android / macOS / Windows / POSIX 平台，一并开源。

iOS 性能对比

我们将 MMKV 和 NSUserDefaults 进行对比，重复读写操作 1w 次。相关测试代码在 iOS/MMKVDemo/MMKVDemo/，结果见如下图表。

可见，MMKV 在写入性能上远远超越 NSUserDefaults，在读取性能上也有相近或超越的表现。

测试机器是 iPhone 11 Pro Max 64G, iOS 13.3.1，每组操作重复 1w 次，时间单位是 ms。

下一步

MMKV 原理

License

MMKV is published under the BSD 3-Clause license. For details check out the LICENSE.TXT.

Change Log

Check out the CHANGELOG.md for details of change history.

Contributing

If you are interested in contributing, check out the CONTRIBUTING.md, also join our Tencent OpenSource Plan.

To give clarity of what is expected of our members, MMKV has adopted the code of conduct defined by the Contributor Covenant, which is widely used. And we think it articulates our values well. For more, check out the Code of Conduct.

FAQ & Feedback

Check out the FAQ first. Should there be any questions, don't hesitate to create issues.

Personal Information Protection Rules

User privacy is taken very seriously: MMKV does not obtain, collect or upload any personal information. Please refer to the MMKV SDK Personal Information Protection Rules for details.