[Standards-JIG] Re: WHACK

Peter Saint-Andre stpeter at jabber.org
Tue Apr 25 23:08:03 UTC 2006


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Tijl Houtbeckers wrote:
> On Wed, 26 Apr 2006 00:43:00 +0200, Peter Saint-Andre
> <stpeter at jabber.org> wrote:
> 
>>>> To do XML we'd need to send things like this:
>>>> <message to='client' from='server'><a xmlns='jabber:ack'/></message>
>>>>
>>>> Or so it seems to me right now.
>>>
>>> Take a look at Implementation Notes of JEP-ACK.
>>
>> Yes, that's not very verbose at all, is it?
> 
> If you take it as a percentage of traffic (counted as character data)
> it's tiny. If you look at it from a TCP perspective, the chance that
> <ack:a/> will overflow your max. MMU size compared to a whitespace isn't
> that big either (again, the extra packets from that will be a tiny
> fraction of the total). The biggest difference is likely in CPU time
> needed for processing (it's more branchy, but modern CPUs cope well with
> that these days).
> 
> It'd be a nice incentive for client authors to fix namespace support
> though. It's pretty bad in some clients. Or so I've heard, of course :P

I wonder how servers handle such things, too. ;-)

Peter

- --
Peter Saint-Andre
Jabber Software Foundation
http://www.jabber.org/people/stpeter.shtml

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