[standards-jig] Pub/Sub for JNG?

Dave dave at dave.tj
Thu May 2 19:34:46 UTC 2002


This isn't about UDP, so I believe I'm allowed to reply to your message:
SSL doesn't compress; it only encrypts.

 - Dave


Julian Missig wrote:
> 
> http://mailman.jabber.org/pipermail/jdev/2002-January/009560.html
> 
> Is Mike Lin's post on gzipping Jabber. He put together code tests and
> everything... and his conclusion was that once you put together all the
> pieces needed to make gzip into something decent for Jabber, you're very
> close to SSL (so why not just use SSL?). See other messages in the
> thread for further information.
> 
> Julian
> 
> On Wed, 2002-05-01 at 18:23, Dave wrote:
> > Dial-up users also like to download data, you know. . .
> > 
> >  - Dave ... who likes to let people optimize at their own bottlenecks :-)
> > 
> > 
> > Craig wrote:
> > > 
> > > <gzip-over-udp-madness snipped>
> > > 
> > > I know this is obvious, but I just _have_ to chime in with it.  I've 
> > > done a fair amount of load testing of JCS in a lot of different 
> > > configurations.  Load tests are typically done on a 100Mbit network 
> > > (shared, not segmented) -- probably less than you'd have on the 
> > > backplane of a serious install.  Running at seriously high throughput, 
> > > it turns out that processor -- not network is the bottleneck for a mix 
> > > of JUD/TC/IM traffic.  Couple this with the exceptional job that modern 
> > > network hardware does at text compression and I'm left wondering what 
> > > the advantages in udp-as-tcp-with-gzip are here?  Are folks running 
> > > servers with thousands of users at home on the other side of a dialup? 
> > >  Are end users having a problem with the couple hundred bytes going 
> > > through every so often?  Are people really having problems with the 
> > > bandwidth?  Am I just not getting it?
> > > 
> > > --Craig, who likes to optimize at known bottlenecks.
> 
> 
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