From owner-freebsd-hackers@FreeBSD.ORG Mon Dec 8 22:41:00 2014 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 53F0B49F; Mon, 8 Dec 2014 22:41:00 +0000 (UTC) Received: from chez.mckusick.com (chez.mckusick.com [IPv6:2001:5a8:4:7e72:4a5b:39ff:fe12:452]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 35518C1A; Mon, 8 Dec 2014 22:41:00 +0000 (UTC) Received: from chez.mckusick.com (localhost [127.0.0.1]) by chez.mckusick.com (8.14.3/8.14.3) with ESMTP id sB8Mek7a065468; Mon, 8 Dec 2014 14:40:46 -0800 (PST) (envelope-from mckusick@chez.mckusick.com) Message-Id: <201412082240.sB8Mek7a065468@chez.mckusick.com> To: Thomas Dickey Subject: Re: Reason for reordering /usr/share/misc/termcap.src for /usr/share/misc/termcap ? In-reply-to: <1479779318.56241253.1418076402148.JavaMail.root@his.com> Date: Mon, 08 Dec 2014 14:40:46 -0800 From: Kirk McKusick X-Mailman-Approved-At: Mon, 08 Dec 2014 23:33:28 +0000 Cc: FreeBSD Hackers , Erik Trulsson , Garrett Cooper , jkh@freebsd.org X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 08 Dec 2014 22:41:00 -0000 > Date: Mon, 8 Dec 2014 17:06:42 -0500 (EST) > From: Thomas Dickey > To: Kirk McKusick > Cc: Erik Trulsson , > FreeBSD Hackers , jkh@freebsd.org, > Garrett Cooper > Subject: Re: Reason for reordering /usr/share/misc/termcap.src for > /usr/share/misc/termcap ? > X-ASK-Info: Message Queued (2014/12/08 14:06:59) > X-ASK-Info: Confirmed by User (2014/12/08 14:07:49) > > ----- Original Message ----- > | From: "Kirk McKusick" > | To: "Garrett Cooper" > | Cc: "Erik Trulsson" , "FreeBSD Hackers" , > | jkh@freebsd.org, dickey@his.com > | Sent: Monday, December 8, 2014 11:51:37 AM > | Subject: Re: Reason for reordering /usr/share/misc/termcap.src for /usr/share/misc/termcap ? > ... > | > | I believe Erik Trulsson's answer is correct. Termcap had grown very > | large and on sub-1-MIP computers took a noticable delay to read on > | every startup of programs using it. So, it was reordered to reduce > | the startup time on common terminals. As Erik points out this > | optimization > | is no longer necessary as termcap is now placed in a database. Not to > | mention that there are far fewer entries in it today than there were > | at the peak of its existence. > > Actually, the current file in the repository is 10% longer (4667 > lines vs 4007) than the first check-in. Where might I find a larger > example (of BSD termcap) such as you are referring to? > > -- > Thomas E. Dickey > http://invisible-island.net > ftp://invisible-island.net You are correct that it is now longer that it used to be. I (mistakenly) thought that the old cruft had been dropped. We can probbly do without Kaypro and Radio Shack trs-80 and trs100 support to name just three :-) Kirk McKusick