Date: Mon, 13 Nov 1995 11:11:16 PST From: "Marty Leisner" <leisner@sdsp.mc.xerox.com> To: michael butler <imb@scgt.oz.au> 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 Message-ID: <9511131911.AA13107@gnu.mc.xerox.com> In-Reply-To: Your message of "Sat, 11 Nov 1995 02:52:54 PST." <199511111052.VAA09030@asstdc.scgt.oz.au>
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> 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
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