The text discusses the importance of monitoring and optimizing garbage collection (GC) in Ruby applications to improve performance. It highlights how GC can consume system resources, leading to high CPU usage and performance issues. Datadog's Continuous Profiler provides a tool for tracking resource usage tied to GC, allowing developers to diagnose and resolve issues. The profiler reveals which parts of an application are allocating the most memory, helping to identify areas for optimization. A real-world example is provided, where using the allocations profiler led to a significant reduction in CPU usage by identifying and removing unnecessary object duplication operations. This showcases the potential of the allocations profiler to troubleshoot and resolve GC-related issues in Ruby applications.