On Saturday 29 January 2011 18:25:48 Dennis Nezic wrote: > On Sat, 29 Jan 2011 01:54:47 +0000, Matthew Toseland wrote: > > Build 1339 is out. Please upgrade asap, it will be mandatory on > > Monday. The main change in this build is that backoff is now separate > > for realtime versus bulk requests. This means, hopefully, that if the > > performance problems recently have been caused by realtime requests > > causing lots of backoff, this will only affect realtime requests. It > > is investigating a theory, one of several, regarding the recent > > problems. > > > > I am sorry that the network has behaved so badly recently, I am > > working on it, but it is not easy. > > > > Please upgrade, and please report any and all problems you find. > > There is a thread on FMS where I am trying to get a better > > understanding of what problems people are seeing. So far the main > > reported issues seem to be: > > - Realtime requests (e.g. fproxy) are slow, and cause all or most > > peers to get backed off. > > - Downloads are very slow. > > - Bootstrapping onto the network is slow. > > I'm getting lots and lots of Timeouts and Overloads in my > stranger-status details, although not too many BackOffs. After over an > hour of uptime, my bandwidth usage hasn't really stabilized. Even the > upload speeds, which used to be quite stable around my 15KB/s limit, > are very bumpy, quite often near 2KB/s. Same with my download speeds. > (Although, at least they aren't flooding :p.)
This is different to 1338? I don't know what is normal for your node, you have a rather odd setup. Testing so far suggests once it settles fproxy performs almost acceptable, dunno about bulk downloads. > > In general, whenever I look at my strangers, most of them will be: > FatalTimeout/SENDER_DIED > FatalTimeout/TransferFailedInsert > FatalTimeout/AfterInsertAcceptedTimeout > FatalTimeout/ForwardRejectedOverload2 See that here too, but mostly for realtime. You doing lots of uploads? I see more TransferFailedRequest. > > I've seen a bunch of InsertTimeoutNoFinalAck, TransferFailedRequest > (5,13). > > Is this abnormal, or normal congenstion control? This is a different layer and it's not normal but it's pretty common. > > I also see that the ping times to my strangers are very high, 300ms-1000 > +ms, even though I can ping google under 20ms. I don't know if this is > abnormal, or perhaps all my peers are on the other side of the planet, > or perhaps the value is calculated differently. This is common. UDP and ICMP are routed differently, and there are significant delays imposed by Freenet for bandwidth efficiency reasons. > > Also, perhaps unrelated, why was I being connected to 11 peers, with a > 15KB/s connection? Isn't that too high? Although, even after I halved > this, nothing much changed. There is a minimum. IIRC it is 10 peers. Beyond that it's a square-root relationship because each peer brings more traffic incoming as well as outgoing.
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