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Add Documentation #4

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Oct 17, 2023
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Add Documentation #4

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18 changes: 16 additions & 2 deletions README.md
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Expand Up @@ -2,7 +2,21 @@

Based on LSM tree-structured database with up to 100,000 data writes per second.

## Create DB
# introduce
1. Developed using the LSM architecture
2. Serialization and deserialization of data in the form of ProtoBuf
3. Use direct memory to reduce one copy of the IO process
4. Memory structure support Bloom filters, jump tables
5. Multi-threaded read/write support
6. Use of buffer pools to increase read efficiency
7. Supports Size-tire compression and Level compression
8. Support repeatable reads, read committed isolation level.
9. Optimize SSTable, Key and Value separation.
10. Write metadata twice to prevent complete data loss
11. Support for version snapshots
12. Optimistic locking and pessimistic locking transactions.

## example

```

Expand All @@ -20,7 +34,7 @@ Based on LSM tree-structured database with up to 100,000 data writes per second.
columnFamilyHandle=openDB.getColumnFamilyHandle("luoluoyuyu").date;
```

benchmark
#benchmark
```
Benchmark Mode Cnt Score Error Units
OpenDBBenchmark.addKeyValue thrpt 134061.544 ops/s
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