[Standards] mobile optimizations

Peter Saint-Andre stpeter at stpeter.im
Tue Feb 19 17:13:38 UTC 2008

That seems like a reasonable path to explore...

Joe Hildebrand wrote:
> Could this be added to XEP-198?  Basically a pause command that would
> cause stuff to get buffered on the server.  There would need to be an
> ack that comes back to avoid races.  Additionally, I could imagine the
> thing doing the buffering could toss old stale presence stanzas when new
> ones are received from the same full jid.
> Combined with XEP-198 quick-reconnects (or BOSH) with long server-side
> timeouts, and it seems pretty efficient for this use case, at the
> expense of some DEFLATE performance.
> On Feb 19, 2008, at 2:47 AM, Fabio Forno wrote:
>> On Feb 16, 2008 6:10 AM, Peter Saint-Andre <stpeter at stpeter.im> wrote:
>>> It would be good to analyze the relative percentage of presence to
>>> messages. My sense from watching the XML console in Psi is that most of
>>> the "noise" is presence.
>>> In general I think it might be difficult to determine which stanzas are
>>> worth waking up for (some messages might just be PEP notifications), but
>>> ignoring presence seems like a good start.
>> I must study how privacy lists work (don't know if they need some
>> extension or we can use them in this way), but the best solution in
>> this case seems a set of privacy rules allowing asymmetric presence
>> distribution. When I'm online with a mobile there may be at least
>> three groups of users:
>> - symmetric presence exchange (as it works now, I want being
>> constantly informed about their status and let them know mine)
>> - asymmetric presence: let them know my status, but don't update me
>> with theirs until they do some action (e.g. a message) or I query
>> explicetely
>> - no presence at all: don't bother with these contacts when I'm with a
>> mobile
>> -- 
>> Fabio Forno, Ph.D.
>> Bluendo srl http://www.bluendo.com
>> jabber id: ff at jabber.bluendo.com
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