[jdev] Re: XMPP Ping method?
remko at el-tramo.be
Thu Nov 2 19:49:06 CST 2006
> I'm a bit worried about CPU/bandwidth explosión, nevertheless. And
> mobile bandwidth, that pay per byte.
Not that I have experience with mobile devices, but if you use zlib,
the overhead of doing a ping should reduce to one byte plus a few
bytes of padding every call in every direction. If you do a ping
every minute, this bandwidth overhead is neglectable compared to the
bandwidth overhead of presence updates alone. If you do polling and
send/receive more than just the ping in one request, the impact of
the extra bytes of padding diminishes as well. A while ago, someone
claimed that zlib on mobile devices was not a good thing, but I'm not
sure if there was proof of that.
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