> however, after fixing things so the initial cwind isn't hosed, i get a little > better story:
so, actually, i think this is the root cause. the intial cwind is misset for loopback. i but that the symptom folks will see is that /net/tcp/stats shows fragmentation when performance sucks. evidently there is a backoff bug in sources' tcp, too. i'd love confirmation of this. - erik
