overwrite

Go to the directory where the tool is stored.
```
cd /home/rocksdb-6.10.2
```
Create a database and populate the database.
```
./db_bench --benchmarks="fillseq,stats"
```
Overwrite the existing database.
```
./db_bench --benchmarks="overwrite,stats"  --use_existing_db=true
```
In the command output, Entries shows the data volume, Compression shows the compression type, Memtablerep shows the memory table type, DB path shows the database path, overwrite shows the performance data, and Compaction Stats shows the summary information.

Parent topic: Benchmark Test Scenarios