Visual Studio CPU telemetry has caught an issue where this extension is writing to a HashSet\<T> from multiple threads at the same time, which is currupting in a way that causes usages to turn into an infinite loop.
Please protect this HashSet<T> with a lock, or replace with it a ConcurrentDictionary<TKey, TValue>.
Here's an example where we captured a trace where the following paths were burning just over 4 cores over the space of 80 seconds:
Visual Studio CPU telemetry has caught an issue where this extension is writing to a HashSet\<T> from multiple threads at the same time, which is currupting in a way that causes usages to turn into an infinite loop.
Please protect this
HashSet<T>with a lock, or replace with it aConcurrentDictionary<TKey, TValue>.Here's an example where we captured a trace where the following paths were burning just over 4 cores over the space of 80 seconds: