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Re: Header Compression

James M Snell <jasnell@gmail.com> Wed, 05 June 2013 19:35 UTC

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From: James M Snell <jasnell@gmail.com>
Date: Wed, 05 Jun 2013 12:31:49 -0700
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To: RUELLAN Herve <Herve.Ruellan@crf.canon.fr>
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Subject: Re: Header Compression
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At first read, this definitely looks like an improvement. I will be
taking another pass over the bohe draft before next week and will be
working on side-by-side implementations of both bohe and this updated
proposal in time for next weeks face to face.

On Wed, Jun 5, 2013 at 12:17 PM, RUELLAN Herve
<Herve.Ruellan@crf.canon.fr> wrote:
> Roberto and I have been discussing for some time and we have created a joint proposal for Header Compression.
>
> The resulting spec is available at:
> https://github.com/http2/compression-spec
>
> The main features of this proposal are:
> - One single table for indexing headers as (name, value) pairs.
> - HeaderDiff-based serialization (indexed header, literal header with either no indexing, addition indexing, or replacement indexing).
> - Delta2-based diff between two successive header sets.
> - Possibility of bounding table size.
> - Least recently written eviction strategy when an insertion cause table size limit to be reached.
>
>
> We will present it in details at the next interim meeting. Until then, all questions and comments are welcome.
>
> Hervé.

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