Pro .NET Memory Management: For Better Code, Performance, and Scalability

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2024

K. Kokosa et al.Pro .NET Memory Managementhttps://doi.org/10.1007/979-8-8688-0453-3_9

9. Garbage Collection – Plan Phase

Konrad Kokosa¹  , Christophe Nasarre² and Kevin Gosse²

(1)

Warsaw, Poland

(2)

Paris, France

 

After the Mark phase, all objects have been identified as reachable or not. Those reachable are marked by a dedicated bit. Some of the marked objects may be additionally marked as pinned by another bit. At this moment, the Garbage Collector has all the necessary information to continue its job. But the question arises – should it proceed with a Sweep or a Compact collection?

Instead of guessing based on previous collections, the GC can try to calculate ...