Preparing for .NET 10 GC: What Developers Need to Know About DATAS
By
benaadams
The bagel they save for the regulars. Don't skim, savour.
Summary
This article discusses the upcoming changes to the Garbage Collector (GC) in .NET 10, focusing on the DATAS (Dynamic Adaptation of Thread Allocation Sizes) feature that was enabled by default in .NET 9. Since .NET 9 is not an LTS (Long Term Support) release, many users will encounter DATAS for the first time when upgrading to .NET 10. The article warns that Server GC users may notice significant performance profile differences, particularly with memory usage appearing drastically different (likely smaller). The author emphasizes that unlike typical GC features that require no user intervention, DATAS may require some preparation and understanding from developers.
Key quotes
· 4 pulledIn .NET 9 we enabled DATAS by default. But .NET 9 is not an LTS release so for many people they will be getting DATAS for the first time when they upgrade to .NET 10.
This was a tough decision because GC features are usually the kind that don't require user intervention — but DATAS is a bit different.
If you're using Server GC, you might notice a performance profile that's more noticeably different than what you saw in previous runtime upgrades.
Memory usage may look drastically different (very likely smaller)
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