.NET 10's DATAS GC: Prepare for Takeoff!
2025-09-24

.NET 10 defaults to Dynamic Adaptation of Heap Size (DATAS), a significant GC change impacting memory usage and requiring user attention unlike previous updates. This post explains DATAS's adaptive behavior: adjusting heap size based on Live Data Size (LDS), minimizing memory while maintaining performance. It details scenarios where DATAS isn't ideal (e.g., high-throughput demands, critical startup performance, primarily Gen2 GCs). Two case studies illustrate tuning DATAS via configuration parameters for optimal results.
Development