DTrace

DTrace is a powerful tool for monitoring and troubleshooting computer systems in real time. It allows system administrators and developers to observe how different parts of a system behave—such as applications, operating systems, and hardware—without needing to stop or restart the system. By setting up custom queries, DTrace can track specific actions, identify bottlenecks, or diagnose issues accurately and efficiently. Think of it as an advanced diagnostic instrument that provides detailed insights into system performance, helping ensure everything runs smoothly and problems are quickly identified and resolved.