Date: Wed, 15 Mar 2000 11:59:29 -0600 From: "Jeffrey J. Mountin" <jeff-ml@mountin.net> To: Alfred Perlstein <bright@wintelcom.net>, Kai Voigt <k@123.org> Cc: Matt Heckaman <matt@ARPA.MAIL.NET>, Arnout Boer <arnout@xs4all.nl>, FreeBSD-CURRENT <FreeBSD-CURRENT@FreeBSD.ORG> Subject: Re: Why not gzip iso images? Message-ID: <4.3.2.20000315113750.00b128e0@207.227.119.2> In-Reply-To: <20000315055316.D14789@fw.wintelcom.net> References: <20000315142247.M30974@abc.123.org> <20000315134211.A47945@tomcat.xs4all.nl> <Pine.BSF.4.21.0003150813230.64597-100000@epsilon.lucida.qc.ca> <20000315142247.M30974@abc.123.org>
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At 05:53 AM 3/15/00 -0800, Alfred Perlstein wrote: >* Kai Voigt <k@123.org> [000315 05:47] wrote: > > Matt Heckaman wrote: > > > It's been my experience that gzipping an ISO (or other compression tools) > > > do not make enough different to justify the time it takes to both > compress > > > and uncompress these things. For example, the time needed to un-gzip the > > > ISO could be longer than the time it would take to download the space > that > > > was saved by it. > > > > This would only happen once for the user. But for the FTP server, the > > amount of saved bandwidth accumulates with each download. > >I feel pretty confident assuming that most people that burn ISOs probably >keep enough disk space free to hold one and not much more, going from >a requirement of ~650MB to ~1.2GB wouldn't be a smart move imo. AFAICR, the one time that a gzip and bzip version were available the size was not all that significant and there were promptly removed. However, if you consider the size of the file and the possibility of corruption, then it should be archived with gzip and forget the compression (gzip -1). Now it can be checked for errors. Another issue is the size. Many factors determine how quickly one can obtain the ISO. It would be nice if it were broken into smaller volumes. About 10-20 MB each would be good. That way should something fail, there less time and bandwidth wasted should one need to start over. Call me a disinterested 3rd party. Never pull the ISO, only the parts needed. ;) Jeff Mountin - jeff@mountin.net Systems/Network Administrator FreeBSD - the power to serve To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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