From owner-freebsd-current Mon Nov 13 11:34:04 1995 Return-Path: owner-current Received: (from root@localhost) by freefall.freebsd.org (8.6.12/8.6.6) id LAA21384 for current-outgoing; Mon, 13 Nov 1995 11:34:04 -0800 Received: from alpha.xerox.com (alpha.Xerox.COM [13.1.64.93]) by freefall.freebsd.org (8.6.12/8.6.6) with SMTP id LAA21378 ; Mon, 13 Nov 1995 11:34:02 -0800 Received: from gemini.sdsp.mc.xerox.com ([13.231.132.20]) by alpha.xerox.com with SMTP id <16873(9)>; Mon, 13 Nov 1995 11:12:04 PST Received: from gnu.mc.xerox.com (gnu.sdsp.mc.xerox.com) by gemini.sdsp.mc.xerox.com (4.1/SMI-4.1) id AA27201; Mon, 13 Nov 95 14:11:26 EST Received: by gnu.mc.xerox.com (4.1/SMI-4.1) id AA13107; Mon, 13 Nov 95 14:11:24 EST Message-Id: <9511131911.AA13107@gnu.mc.xerox.com> X-Mailer: exmh version 1.6.4 10/10/95 To: michael butler Cc: hsu@cs.hut.fi (Heikki Suonsivu), peter@freefall.freebsd.org, freebsd-current@freefall.freebsd.org, brad@fcr.com, paulus@cs.anu.edu.au Subject: Re: cvs commit: src/usr.sbin/pppd RELNOTES In-Reply-To: Your message of "Sat, 11 Nov 1995 02:52:54 PST." <199511111052.VAA09030@asstdc.scgt.oz.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Mon, 13 Nov 1995 11:11:16 PST From: "Marty Leisner" Sender: owner-current@FreeBSD.org Precedence: bulk > Heikki Suonsivu writes: > > > Has anyone looked at it, if it could be modified to do zip compression > > instead. > > ZIP is computationally expensive .. you'll speed most of your time in the > kernel and little doing much else. The "predictor-1" algorithm already in > use by iij-ppp is a lightweight alternative, > > michael > >From experience, I've seen zip compresses somewhat slower and decompresses somewhat faster... In fact, the gzip decompression of compress archives is faster than compress (I don't know quite what they're doing, but it what I've seen...) It also compresses better than compress... With the least amount of compression, you get better compression than compress, and the cycle times (decompression/compression) may be close to a wash. -- marty leisner@sdsp.mc.xerox.com Member of the League for Programming Freedom