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Re: Straw Poll: Restore Header Table and Static Table Indices

"Poul-Henning Kamp" <phk@phk.freebsd.dk> Tue, 21 October 2014 06:51 UTC

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To: Greg Wilkins <gregw@intalio.com>
cc: Willy Tarreau <w@1wt.eu>, Mark Nottingham <mnot@mnot.net>, RUELLAN Herve <Herve.Ruellan@crf.canon.fr>, Amos Jeffries <squid3@treenet.co.nz>, "ietf-http-wg@w3.org" <ietf-http-wg@w3.org>
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From: Poul-Henning Kamp <phk@phk.freebsd.dk>
References: <20141013012326.GD13217@1wt.eu> <CAP+FsNci+YbQ9fP9LiJ1BBUSDryWOqi4A4YsKyORskY7pK0Fmg@mail.gmail.com> <CAHzwyDuAeMJe_BW0kZkLUHRn6xAN8LO_uno_ZL0TmCLgSaYbkg@mail.gmail.com> <CAH_y2NHhDTDtM4+DvWAf66GiO7of4H+ouMhxzseGODhfCSchXg@mail.gmail.com> <CAHzwyDuuN=-DyGiWAfttwq7O_zUGOE=7kVf5J=qu6i_-A9ezfg@mail.gmail.com> <543E0400.8080009@treenet.co.nz> <20141015201540.GB980@1wt.eu> <6C71876BDCCD01488E70A2399529D5E53BF5F842@ADELE.crf.canon.fr> <20141016091626.GC3079@1wt.eu> <34008D72-5800-412E-A276-81C6C7BFA9E2@mnot.net> <20141020165353.GA25743@1wt.eu> <CAH_y2NFprbTLt5tOrC21hZaHJfvf59B5bgK5-3nmbf8vfKpGOA@mail.gmail.com>
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Date: Tue, 21 Oct 2014 06:47:21 +0000
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Subject: Re: Straw Poll: Restore Header Table and Static Table Indices
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--------
In message <CAH_y2NFprbTLt5tOrC21hZaHJfvf59B5bgK5-3nmbf8vfKpGOA@mail.gmail.com>
, Greg Wilkins writes:

>However, note that I think it needs to be considered together with a review
>of the static table itself.  With your pattern we get :
>
>   - 62 static 1 byte indexed fields - which are only useful if we have
>   values for most of the first 62 entries in the static table - so we need to
>   add as many valus as possible

... in due time.

I agree that the current table should be reviewed now, but we should
not fill it up with junk, just to fill it up.

It makes a lot of sense to leave the remaning slots available for future 
extensions.  Maybe we should already add a SETTING to tell how long
a table an implementation supports, to make such additions quick and
painless.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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