On Sat, Jan 25, 2003 at 08:15:26PM -0500, Gianni Johansson wrote: > > > 1) This doesn't belong in Fred's JVM. We have enough problems > > > undertanding/bounding fred's resource consumption as it is. > > > > I agree - that is what plugin architectures are for. > What do you mean? > > When you add a servlet to the mainport configuration setting you are running > it in fred's JVM. > Where else are people plugging things in?
Well, I thought you were worried about something running in Fred's JVM by default. Surely it is better to have one instance of the JVM running, rather than two? > > Increasingly, streaming protocols operate over TCP - what QOS guarantee > > does TCP offer? > At least the lower bounds can be charcterized. Perhaps you could help do the > same for freenet. See below. There is a big difference between a QOS guarantee and a "characterization" of throughput ;-) I think that we should be able to experiment a-bit and figure out what kind of throughput Freenet can achieve. > > Such streaming protocols address this using buffering, > > there is no reason why we can't do the same. > The latencies in Freenet are orders of magnitude larger. If this is true, then the solution is to make the buffers larger in accordance with the higher latencies. A buffer of 1-2 minutes would not be unreasonable. > I would be interested in a principled analysis of what it would take to make > this really work. How much buffering? What minimum average rate? Well, IIRC FM quality audio requires 64kbits/sec, or 8kbytes/sec with ogg. At 4k/sec we can still achieve recognizable transmission of speech. I would be surprised if Freenet couldn't achieve an average throughput of 8kbytes/sec. > I don't think I could stop fish if I wanted to, which I don't. Pointing out > that the Freenet architecture provides no QOS, is not what I would > characterize as discouragement. It's more like technical due diligence. Well, in fairness you did more than point that out, you implied that streaming was impossible. > > Splitfiles I have been seeing overall download rates of around 30k/sec, > > which is more than enough for a FM quality ogg stream. > Which SplitFiles? What tests have you run? Very basic, downloaded an episode of ST Enterprise, did the math. Ian. -- Ian Clarke ian@[freenetproject.org|locut.us|cematics.com] Latest Project http://locut.us/ Personal Homepage http://locut.us/ian/ _______________________________________________ devl mailing list [EMAIL PROTECTED] http://hawk.freenetproject.org:8080/cgi-bin/mailman/listinfo/devl
