From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,HTML_MESSAGE,MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.2 Received: from minnie.tuhs.org (minnie.tuhs.org [45.79.103.53]) by inbox.vuxu.org (OpenSMTPD) with ESMTP id 1a44efee for ; Wed, 28 Aug 2019 18:34:42 +0000 (UTC) Received: by minnie.tuhs.org (Postfix, from userid 112) id B40D89BD9F; Thu, 29 Aug 2019 04:34:41 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id ACE9F9BD08; Thu, 29 Aug 2019 04:34:24 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=pass (2048-bit key; unprotected) header.d=bsdimp-com.20150623.gappssmtp.com header.i=@bsdimp-com.20150623.gappssmtp.com header.b="Ed5B64Zw"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id E15EB9BCD7; Thu, 29 Aug 2019 04:34:22 +1000 (AEST) Received: from mail-qt1-f193.google.com (mail-qt1-f193.google.com [209.85.160.193]) by minnie.tuhs.org (Postfix) with ESMTPS id 83FED9BCD0 for ; Thu, 29 Aug 2019 04:34:22 +1000 (AEST) Received: by mail-qt1-f193.google.com with SMTP id z4so697924qtc.3 for ; Wed, 28 Aug 2019 11:34:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bsdimp-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=QsKaI4rD7jQNkxPJ8WQgAh4Og6g1yhA/YT0PijlotHM=; b=Ed5B64ZweSL+bSIVtT7jyA/ZR73b25M3JqWAWCOeGnlzihFUrh7zemy022fLd2sxKA obp1u5tKvoUT3xNZw53H7QPLl4uYI4W1RrFEkHcauP5rskyvT/olmjvQabZ5gpkjROjY unSXNc4SmG4YpzIZRvDgb9EGAYlBgVEXIrNgOMSq7ZxZjhT7V/vN/OJyWpl//owN7KkD 7ASxt8Al+CLX3OvqArbY/c4gMWSZM/Z7ve0Jb0FqW29n1oAl0wahj35vm2Rs5psuwl2l F+y0C38pejZeCf2fwNlEpsu2QyckJoxF3r/E2H+29Ys/uhEyXMt+hH9ODeqY4ubds4VX yZZw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=QsKaI4rD7jQNkxPJ8WQgAh4Og6g1yhA/YT0PijlotHM=; b=G0Ji6JMNRS5ZcTCQPYw7MzwjfdxYLmEtTuPi72nK0buk5Fxt9Czycmgmk5ob7QhhsD 5X8cU43qKShGoeOHDjZWPNIADObh8G7VK3fEPg1rdrvC8pdczZTLjA5NixP65UZqPIL1 ykLJvfNCsAOMx5Sep5VDb0EykLvM9d8c0u1iJ8JD8LXDboBS3jPPOJpgp8n+1Y5+u3Ds sQWXis4EenGzrtQcY/gIeIvRlko50lfG5Oj3fGP+bY/lafn0j8d+rCkMsuZjL/SnCTm2 p0/gdUuf+0HpFg3cP4Qbzpgix+Sq9sFEE+8Dnuri4ZqUW9gfiYJi040x25pVaFfyaDgr lBJw== X-Gm-Message-State: APjAAAWFa54YXKCA+VxxuzEGj6KkLUw5ZNTv9D+ZsIdBpBNoej4f9A87 5DW/cFIZXZXTTjObR+w+lxWpbzYpDTEBx3+WarcsDQ== X-Google-Smtp-Source: APXvYqxIGh7JqLp2E7aHMgHszPQsUXO77pJxjLJgwJczGGM0k6FRLQKdFCP+YJpPmhF6f5dxZ7z0GC8PW0uDUXo4nzs= X-Received: by 2002:ac8:6907:: with SMTP id e7mr5488943qtr.32.1567017261713; Wed, 28 Aug 2019 11:34:21 -0700 (PDT) MIME-Version: 1.0 References: <201908281757.x7SHv9gj042779@tahoe.cs.Dartmouth.EDU> In-Reply-To: From: Warner Losh Date: Wed, 28 Aug 2019 12:34:10 -0600 Message-ID: To: Doug McIlroy Content-Type: multipart/alternative; boundary="0000000000003ddec5059131a3cd" Subject: Re: [TUHS] dmr streams & networking [was: Re: If not Linux, then what?] 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: The Eunuchs Hysterical Society Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" --0000000000003ddec5059131a3cd Content-Type: text/plain; charset="UTF-8" On Wed, Aug 28, 2019, 12:27 PM Warner Losh wrote: > > > On Wed, Aug 28, 2019, 11:57 AM Doug McIlroy wrote: > >> >> > How long was research running on a PDP-11 and when did they move to a >> VAX? >> >> London and Reiser had ported Unix to the VAX, replete with virtual >> memory, in 1978. By the time v7 was released (1979), Vaxen had become the >> workhorse machines in Research. >> > > > Is there a paper on this work? > Found the 32V paper, but this was still a swapping implementation if I'm reading correctly. I thought that the virtual memory was added by BSD / Bill Joy. That would explain why V8 was BSD 4.1 based, since it was the first usable Vax port with VM. Warner > --0000000000003ddec5059131a3cd Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable


On Wed, Aug 28, 2019, 12:27 PM Warner Losh &l= t;imp@bsdimp.com> wrote:
=


On Wed, Aug 28, 2019, 1= 1:57 AM Doug McIlroy <doug@cs.dartmouth.edu> wrote:
<= blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px= #ccc solid;padding-left:1ex">
> How long was research running on a PDP-11 and when did they move to a = VAX?

London and Reiser had ported Unix to the VAX, replete with virtual memory, = in 1978. By the time v7 was released (1979), Vaxen had become the workhorse= machines in Research.


Is there a paper on this = work?

Found the 32V paper, but this was still a swapping implementation if= I'm reading correctly. I thought that the virtual memory was added by = BSD / Bill Joy. That would explain why V8 was BSD 4.1 based, since it was t= he first usable Vax port with VM.

Warner
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