LiteDB是一个小型的.NET平台开源的NoSQL类型的轻量级文件数据库。特点是小和快，dll文件只有200K大小，而且支持LINQ和命令行操作，数据库是一个单一文件，类似Sqlite。
SQLite 是一个轻型的数据库，实现了自给自足的、无服务器的、零配置的、事务性的 SQL 数据库引擎。SQLite 是在世界上最广泛部署的 SQL 数据库引擎。SQLite 源代码不受版权限制。
简单操作对比 SQLite 和 LiteDB 性能
对比结果:
| 5.000 records | LiteDB #1 | LiteDB #2 | LiteDB #3 | SQLite #1 | SQLite #2 | SQLite #3 |
|---|---|---|---|---|---|---|
| Insert | 4.999 ms | 5.690 ms | 4.839 ms | 46.379 ms | 49.296 ms | 4.107 ms |
| Bulk | 236 ms | 280 ms | 219 ms | 122 ms | 122 ms | 106 ms |
| Update | 3.674 ms | 3.784 ms | 3.242 ms | 47.470 ms | 48.490 ms | 4.101 ms |
| CreateIndex | 176 ms | 174 ms | 176 ms | 13 ms | 36 ms | 8 ms |
| Query | 204 ms | 208 ms | 93 ms | 457 ms | 463 ms | 468 ms |
| Delete | 157 ms | 207 ms | 140 ms | 11 ms | 13 ms | 3 ms |
| Drop | 17 ms | 56 ms | 14 ms | 11 ms | 25 ms | 3 ms |
| FileLength | 7.580 kb | 7.576 kb | 7.572 kb | 3.824 kb | 3.856 kb | 3.824 kb |
时间越短表示性能越好
- #1 Default 默认
- #2 Encrypted 加密
- #3 Exclusive mode and no journal 独占模式 无日志
SQLite
- #1 Default 默认
- #2 Encrypted 加密
- #3 No journal 无日志
测试环境 MacBook Pro 2012 i5, Win10, 8Gb RAM, SSD
LiteDB: default - 5000 records
==============================
Insert : 4999 ms - 1000 records/second
Bulk : 236 ms - 21184 records/second
Update : 3674 ms - 1361 records/second
CreateIndex : 176 ms - 28321 records/second
Query : 204 ms - 24467 records/second
Delete : 157 ms - 31722 records/second
Drop : 17 ms - 289513 records/second
FileLength : 7580 kb
LiteDB: encrypted - 5000 records
================================
Insert : 5690 ms - 879 records/second
Bulk : 280 ms - 17820 records/second
Update : 3784 ms - 1321 records/second
CreateIndex : 174 ms - 28669 records/second
Query : 208 ms - 24037 records/second
Delete : 207 ms - 24078 records/second
Drop : 56 ms - 87898 records/second
FileLength : 7576 kb
LiteDB: exclusive no journal - 5000 records
===========================================
Insert : 4839 ms - 1033 records/second
Bulk : 219 ms - 22775 records/second
Update : 3242 ms - 1542 records/second
CreateIndex : 176 ms - 28379 records/second
Query : 93 ms - 53243 records/second
Delete : 140 ms - 35574 records/second
Drop : 14 ms - 334283 records/second
FileLength : 7572 kb
SQLite: default - 5000 records
==============================
Insert : 46379 ms - 108 records/second
Bulk : 122 ms - 40827 records/second
Update : 47470 ms - 105 records/second
CreateIndex : 13 ms - 367266 records/second
Query : 457 ms - 10933 records/second
Delete : 11 ms - 441583 records/second
Drop : 11 ms - 454141 records/second
FileLength : 3824 kb
SQLite: encrypted - 5000 records
================================
Insert : 49296 ms - 101 records/second
Bulk : 122 ms - 40851 records/second
Update : 48490 ms - 103 records/second
CreateIndex : 36 ms - 136413 records/second
Query : 463 ms - 10798 records/second
Delete : 13 ms - 357189 records/second
Drop : 25 ms - 199642 records/second
FileLength : 3856 kb
SQLite: no journal - 5000 records
=================================
Insert : 4107 ms - 1217 records/second
Bulk : 106 ms - 47121 records/second
Update : 4101 ms - 1219 records/second
CreateIndex : 8 ms - 592916 records/second
Query : 468 ms - 10680 records/second
Delete : 3 ms - 1578981 records/second
Drop : 3 ms - 1574952 records/second
FileLength : 3824 kb源码地址：https://github.com/mbdavid/LiteDB-Perf
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