Path: ...!weretis.net!feeder8.news.weretis.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Lawrence D'Oliveiro Newsgroups: comp.arch Subject: Re: ancient OS history, ARM is sort of channeling the IBM 360 Date: Mon, 24 Jun 2024 04:27:08 -0000 (UTC) Organization: A noiseless patient Spider Lines: 11 Message-ID: References: <87plsb87hn.fsf@localhost> <87le2vatq4.fsf@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Injection-Date: Mon, 24 Jun 2024 06:27:08 +0200 (CEST) Injection-Info: dont-email.me; posting-host="3048fea01d51f9337586ac8e02824e6c"; logging-data="822397"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+kcvTUYdNjsGHiMKIgzp6o" User-Agent: Pan/0.158 (Avdiivka; ) Cancel-Lock: sha1:uj7KUOVuui0BqBEaXjmbDKbf1jM= Bytes: 1743 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.