From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 27418 invoked from network); 23 Dec 2021 16:19:42 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 23 Dec 2021 16:19:42 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id C0AE69CEDE; Fri, 24 Dec 2021 02:19:40 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id C04FF9CE21; Fri, 24 Dec 2021 02:19:26 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id 7C3309CE21; Fri, 24 Dec 2021 02:19:25 +1000 (AEST) Received: from mcvoy.com (mcvoy.com [192.169.23.250]) by minnie.tuhs.org (Postfix) with ESMTPS id 7AAE69CC00 for ; Fri, 24 Dec 2021 02:19:24 +1000 (AEST) Received: by mcvoy.com (Postfix, from userid 3546) id E204835E0F8; Thu, 23 Dec 2021 08:19:23 -0800 (PST) Date: Thu, 23 Dec 2021 08:19:23 -0800 From: Larry McVoy To: Warner Losh Message-ID: <20211223161923.GT24180@mcvoy.com> References: <818A6F70-D117-471A-9E08-E37B34F8FAE0@mac.com> <20211223021805.GK24180@mcvoy.com> <20211223141958.GR24180@mcvoy.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) Subject: Re: [TUHS] Photos of University Computer Labs - now off topic X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: TUHS main list Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" On Thu, Dec 23, 2021 at 10:02:40AM -0600, Warner Losh wrote: > > I had forgotten about control-t - does anything modern still do that > > FreeBSD does. It's my biggest annoyance with Linux that it doesn't. Seems like a patch might be nice. > 100k for a process that likely needed 500k to 1MB would indeed be swapping > its brains out. So while tha vax could do I/O 10 times faster than a Z80 of > the era and run maybe 5 times faster, all that was lost when you started > thrashing because you can't keep your working set in memory. Yeah, exactly. A z80 with floppies seems slower, and was much slower than a VAX to yourself, but I very rarely experienced that. 40 students at 4am and the load average was through the roof? No thanks, I'll take the predictable speed of my CP/M machine over the VAX any day. It wasn't that slow, I got a lot of work done on it. --lm