toad wrote: > On Thu, Nov 30, 2006 at 10:30:56AM +0000, Michael Rogers wrote: >> Here are some preliminary simulation results where 10% of the nodes have >> 5 kbyte/s bandwidth rather than 15 kbyte/s. The most interesting change >> is that the collapse point with no flow control has moved from roughly >> 11 requests/node/minute to roughly 6. > > Are all the lines shown to exhaustion? "No flow control" stops at around > 6 because above input load = 6 the network collapses? Why does it > collapse? The other lines could be continued? It would be interesting to > continue the green, blue and red lines; red seems to be overtaking green > at 15, probably this is the result of the expected beneficial effects of > backoff (isolating throttling from the effects of really slow nodes) ? > It would be useful to see whether red can sustain a lead over green. Is > there an endpoint, or does it tend towards a limit on throughput? > (Obviously success rate will have to drop eventually).
I'm about to finish simulations going up to 28 as the load parameter. I'm using the phase7 version, without modifications. I'll post my results late today.
