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The biggest GC issues I’ve personally seen manifest were arrays of historical data that grew to tens of millions of entries and due to array storage in .net, the array was placed in the large object heap. Swapping to a linked list actually fixed the issue and the team lived to fight another day.

Like a lot of premature optimization, it isn’t a problem until it is… but solutions aren’t unattainable.

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I still mostly remember the day a coworker convinced me that object pooling was dead because it tears the mature generation a new one over and over.

It's nice when the runtime solves a problem you've had to solve yourself, but it also takes a bit of your fun away, even if your coworkers are relieved not to have to deal with 'clever' code anymore.

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