Re: [hybi] Frame size

[Mike Belshe <[e-mail]>]

On Sun, Apr 18, 2010 at 5:08 PM, Ian Hickson <[e-mail]> wrote:

> On Sun, 18 Apr 2010, Mike Belshe wrote:
> >
> > As an anecdote:  every single place that we thought we should use a
> > 16bit length in SPDY has come back to haunt us and will ultimately get
> > changed to 32bits.  When thinking of protocols to use now and also in
> > 2020, we really should not limit anything to 16bits unless it is in some
> > critically bandwidth-sensitive part of the protocol.  Remember that
> > bandwidth is cheap (and growing fast!)  Round Trip Times are expensive
> > (and not shrinking!)
>
> N years from now (for some value of N) people will be saying the same
> about 32 bits. That's why I used a packed integer instead of a fixed-width
> integer to specify lengths.
>

Of course, agree.  And despite where 32bits has failed us in history
previously, I still think this is far enough out that we'll be able to
upgrade by then.  If you think N is sufficiently small for 32bits, we should
use 64bits, would that make N sufficiently far away? :-)

Mike


>
> --
> Ian Hickson               U+1047E                )\._.,--....,'``.    fL
> http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
> Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'
>