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Re: Size of window variables

From: Poul-Henning Kamp <phk@phk.freebsd.dk>
Date: Thu, 03 Jul 2014 19:47:08 +0000
To: Willy Tarreau <w@1wt.eu>
cc: Daniel Sommermann <dcsommer@fb.com>, Martin Thomson <martin.thomson@gmail.com>, Greg Wilkins <gregw@intalio.com>, HTTP Working Group <ietf-http-wg@w3.org>
Message-ID: <35920.1404416828@critter.freebsd.dk>
In message <20140703193435.GB18168@1wt.eu>, Willy Tarreau writes:

>thus I don't think there's any gain in mandating a window
>larger than 31 or 32 bits.

Right now ?  No.

But I find the margin is too small for HTTP/2, we should design for
at least 10 years lifetime before people run into trouble.

Also these four bytes don't add wire overhead so there is no
performance penalty for being on the safe side.

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.
Received on Thursday, 3 July 2014 19:47:34 UTC

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