we are using UPD datagram for cross-process communication of node apps on the same machine. The performance is incredible. here is the code repo: https://github.com/SGF-Games/node-udpcomm
regards, ty 在 2011年4月28日星期四UTC+8上午8时32分08秒，kowsik写道： > > On Wed, Apr 27, 2011 at 5:00 PM, billywhizz <[email protected]<javascript:>> > wrote: > > my bad. i was under the impression that stdio was full duplex. > > Full duplex is not the same as concurrent. Each TCP connection is > full-duplex, but in order to achieve concurrency, you need multiple > connections. > > > had a look at that article. the problem they were having was because > > they were setting the backlog too small. you would be getting dropped > > packets and connection refused errors just the same if you had done > > the same thing with TCP. i find it hard to believe you could make TCP > > as fast as a unix socket considering TCP has to go through the network > > stack and TCP has all the packet overhead too... W Richard Stevens > > says unix domain sockets are more efficient than network sockets and > > that's usually good enough for me. ;) > > > > Unix domain sockets also allow you to use datagrams rather than > > streams, which might be good depending on what your requirements are. > > The datagrams are reliable and in-order over a unix socket though, not > > like in UDP. > > There's a possibility that the datagram unix sockets are faster, but > then you would have to account for the loss of messages in case of > buffer shortage. If you explore sysctl, there isn't much to tune for > unix sockets, but there are a bazillion options for TCP. > > K. > --- > http://blitz.io > http://twitter.com/pcapr > http://labs.mudynamics.com > > -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en
