W3C home > Mailing lists > Public > ietf-http-wg-old@w3.org > September to December 1995

Re: Statistics on reusing request headers in persistent connections

From: Larry Masinter <masinter@parc.xerox.com>
Date: Wed, 1 Nov 1995 16:04:25 PST
To: koen@win.tue.nl
Cc: bne@bne.ind.eunet.hu, mogul@pa.dec.com, http-wg%cuckoo.hpl.hp.com@hplb.hpl.hp.com
Message-Id: <95Nov1.160439pst.2733@golden.parc.xerox.com>
> I do not like the hash-based approach very much.  It seems to me that it is
> a special case of reactive negotiation.

It is.

> One of the problems I have with hash-based content selection is that it is
> that it places a high penalty (one round trip time) on the first content
> selection by the server.  That means that putting up a home page with inline
> links that serve .gifs in the normal case, but .jpgs if the browser can
> display them is less attractive.

Don't use it for embedded gifs and jpgs. In particular, if your accept
headers are short (as they are for image/gif image/jpg) the hash would
be longer than the material hashed, a bad idea.

I only proposed this as an optimization in the case where the Accept*
headers are large.
Received on Wednesday, 1 November 1995 16:09:08 EST

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