[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: Is it time for the binary XML permathread to start up aga
Thanks, but I think you missed my point. I assume that the reason people would use FI without gzip is mainly for speed. I'm asking, when they use FI+gzip as shown below to get that extra 15% in space compared to gzip by itself, am I right that they lose a lot of the speed advantage that FI gave them originally? I'm not saying this is bad. I'm suggesting: FI: good speed, moderate compression gzip: very good compression, slow FI + gzip: slightly better compression than gzip, slightly slower than gzip None of these combinations provides very tight encoding with very high speed. Am I right? Thanks. -------------------------------------- Noah Mendelsohn IBM Corporation One Rogers Street Cambridge, MA 02142 1-617-693-4036 -------------------------------------- "Alexander Philippou" <alex@n...> 07/20/2007 04:33 PM To: <noah_mendelsohn@u...>, "'Costello, Roger L.'" <costello@m...>, <xml-dev@l...> cc: Subject: RE: Is it time for the binary XML permathread to start up again? > If gzip is going to make the FI form larger, or not much > smaller, then > it's a bad use of time to run it, even if the time to gzip the FI is > indeed much lower than the time to gzip the original text. Generally, compressing FI results in similar or smaller size than compressing text. So the FI benefits are there both w/ and w/o compression. Take the 27 files in MITRE / OVAL / Platform Data File Downloads as an example: text: 16,271,427 bytes fi: 4,171,861 bytes (ratio 1:0.26) text+gzip: 1,082,750 bytes (ratio 1:0.07) fi+gzip: 867,648 bytes (ratio 1:0.05) > Noah Mendelsohn Alexander
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