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Re: Use hash to reduce traffic

From: Jeffrey Mogul <Jeff.Mogul@hp.com>
Date: Tue, 06 May 2003 17:07:16 -0700
Message-Id: <200305070007.h4707GV7010880@wera.hpl.hp.com>
To: David Morris <dwm@xpasc.com>
Cc: <ietf-http-wg@w3.org>

Dave Morris writes:

    And how much would compression reduce the data transfered? Not
    mutually exclusive, I know, but a solution to the issue you
    describe would be quite complex to implement, compression would be
    pretty straight forward and I suspect reduce bytes transfered by
    more than the 36% redundancy.

Good question.  We couldn't answer it directly, because our
traces don't include the actual contents, and so we couldn't
compress the data to see what would happen with compression.

However, indirect evidence suggests that adding HTTP-level
compression wouldn't change the results very much, because
most of the bytes (and especially most of the redundant bytes)
were in image formats that are already compressed.

Your trace may vary ...

-Jeff
Received on Tuesday, 6 May 2003 20:07:18 GMT

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