I do think this was well written and informative. I have a request (I know I know another entitled non customer).<p>Why not tell me how fast they are supposed to be? I hear "they are so fast it sounds like a brag but no really they are super fast" and I just want to know: how fast? I did 2-3 searches and didn't find an answer.<p>Google publishes instructions for benchmarking via fio. <a href="https://cloud.google.com/compute/docs/disks/benchmarking-local-ssd-performance" rel="nofollow">https://cloud.google.com/compute/docs/disks/benchmarking-loc...</a><p>I understand more than most just how variable these results can be but I've always appreciated that the gcp docs essentially give customers repro steps for confirming performance.
I think Linux should go the FreeBSD/macOS route of completely deprecating major/minor numbers. Just treat stat.st_rdev as a fully opaque identifier.