Class Stopwatch

Start a new performance logger with the given log level and label. Nothing will be written to the log until the end method is called.

Create a checkpoint for the current performance measurement, capturing the duration and memory usage since the last start or lap. This can be used for example, to find out which part of a process is taking the most time or memory, or to detect peak heap usage during a process (before the garbage collector cleans up after a scope exits). This does not write to a log by itself. N.B. Checkpoints differ from laps in that they do not reset any values (cumulative).

Create a lap for the current performance measurement, capturing the duration and memory usage since the last start or lap. This can be used to measure intermediate steps within a process. This does not write to a log by itself. N.B. Laps differ from checkpoints in that they reset all values (clean slate).

End the performance measurement and log the final results, including total duration and memory usage change, along with any provided metadata. This actually writes to a log (through Logger) with the specified log level and includes the label for context. The metadata parameter can be used to include additional contextual information in the logs, such as input sizes, configuration options, or any other relevant data that can help in analyzing the performance results.