> > I've noticed on my Android phone how it often takes quite awhile to find > > a peer that will actually accept an incoming connection, which isn't > > surprising really: why should a regular node care about responding to > > SPV nodes quickly?
I haven't seen that - remote nodes don't have any special code that knows what kind of client is connecting, so if you're seeing delays I suspect the issue is elsewhere. For example a seed that is serving peers which are overloaded, or the general delays inherent to bringing up a 3G data link from idle (this can take many seconds all by itself). I took out Jeffs seed a few weeks ago in git master because it was often serving nodes that were full, so that should speed things up a bit. The other seeds all run dynamic crawlers. There are lots other ways to optimise performance beyond having fresh seeds, for example, the Android app can (and probably will in future) support putting Bluetooth MAC addresses in the URLs it serves via QRcode/NFC. We prototyped it before but didn't finish. That means that the sending side can provide the receiving side with a transaction via a local Bluetooth socket, which eliminates the need to wait for P2P bringup on the send side. In a typical merchant scenario the receive side is more likely to have WiFi access and is more likely to be talking to the network frequently, so its list of IPs gathered from addr packets would be fresher, and it can do P2P bringup whilst the user is confirming/signing/uploading on the sending side. Overlapping the two buys precious seconds. ------------------------------------------------------------------------------ Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with <2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 _______________________________________________ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
