Re: ancient OS history, ARM is sort of channeling the IBM 360

On Sun, 23 Jun 2024 17:46:11 -1000, Lynn Wheeler wrote:

trivia: I was pontificating in the 70s about mismatch between increase
in system throughput (memory & CPU) and increase in disk throughput. In
early 80s wrote a tome that the relative system throughput of disk had
declined by an order of magnitude since 360 was announced in the 60s
(systems increase 40-50 times, disks increased 3-5 times).

How much of theoretical disk bandwidth was the filesystem capable of
using? Because I know early Unix systems were pretty terrible in that
regard, until Berkeley’s “Fast File System” came along.