JMH supports the following Benchmark modes:
- Throughput: operations per unit of time
- AverageTime: average time per operation
- SampleTime: samples the time for each operation
- SingleShotTime: measures the time for a single operation
Now you can analyse if higher score is better or not.
The default benchmark mode is (Throughput) 1 and in this case higher value is better.
If you are interested how exactly each benchmark result is calculated check here.