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Aggressive Garbage Collection for Kubernetes in .NET 7

Microsoft introduced GCCollectionMode.Aggressive in .NET 7 which helps free up memory in idle applications without shutting them down completely. This feature was introduced to address the issue of inefficient memory usage in idle processes, allowing for increased deployment density in container scenarios. The feature can be invoked using GC.Collect(GCCollectionMode.Aggressive), but note that it cannot be found in official documentation at this time. This feature can be particularly useful for workers running in Kubernetes that may sit idle for significant periods of time and accumulate unneeded memory. Learn more about this feature and its use cases from the author, Jonathan Allen.