> So if the owner needs to check the shared ref count every time it changes the count of the non-atomic local count, isn't that basically all the negatives of a

> So if the owner needs to check the shared ref count every time it changes the count of the non-atomic local count, isn't that basically all the negatives of a single shared atomic counter? I think the owner only needs to check the shared count when it changes the local count to zero, not every time it changes the local count.