Even then I'm pretty sure it's not _a_ dedicated thread, but a thread pool that defaults to a maximum of 512 blocking threads. There's no reason it would bottle

Even then I'm pretty sure it's not _a_ dedicated thread, but a thread pool that defaults to a maximum of 512 blocking threads. There's no reason it would bottleneck unrelated writes on unrelated Files through the same thread. I tried to dig into the code here https://news.ycombinator.com/item?id=38180860 https://news.ycombinator.com/item?id=38180860