I counted ARC as a sort of GC, though I've heard the opinion it is and isn't a type of GC, and see both sides' points
I love that article and the research behind it, but it's worth pointing out the details are sort of "reverse engineered" by probing XNU and running some diagnostic programs, not from apple supplied docs. I doubt apple will ever directly document it like IBM or Intel document their CPUs, though I hope I'm wrong!
It's a great piece and as you say it's a shame that we won't see more detailed info from Apple but I've seen a couple of interesting comments (leaks?) from Apple employees with more details (e.g. the tweets embedded in the article below). I suspect that we'll know an awful lot about the M1 by the time we've finished!
I counted ARC as a sort of GC, though I've heard the opinion it is and isn't a type of GC, and see both sides' points
I love that article and the research behind it, but it's worth pointing out the details are sort of "reverse engineered" by probing XNU and running some diagnostic programs, not from apple supplied docs. I doubt apple will ever directly document it like IBM or Intel document their CPUs, though I hope I'm wrong!