| Name | Description | Type | Package | Framework |
| DurationUnit | An enum of supported time units. | Class | org.slf4j.profiler | SLF4J |
| Profiler | Class | org.slf4j.profiler | SLF4J | |
| ProfilerRegistry | A minimalist registry of profilers. | Class | org.slf4j.profiler | SLF4J |
| SpacePadder | Class | org.slf4j.profiler | SLF4J | |
| StopWatch | A very basic @{link TimeInstrument} which can be started and stopped once and only once. | Class | org.slf4j.profiler | SLF4J |
| TimeInstrument | This interface sets the methods that must be implemented by Profiler and StopWatch classes. | Interface | org.slf4j.profiler | SLF4J |