Thanks for all the great feedback. Sounds like I'm going to give a go a making something amazing! :)
On 2/6/07, Arnar Birgisson <[EMAIL PROTECTED]> wrote: > > > Hello pyro9219, > > On 2/6/07, Richard Clark <[EMAIL PROTECTED]> wrote: > > > > Near-realtime is fine. You can use an xmlhttp connection to wait for > > information to be available from the server side, and info from the > > client side is easily sent. It's not really a turbogears problem as > > much as a javascript one. The rest is just support (ie, JSON which > > Turbogears supports). > > I have done this with good success (i.e. establishing an xmlhttp > connection and just waiting until the server responds) - google > "comet" for more information. It's not that hard on the js side, > especially if you utilize MochiKit.Signal - I can send you some code > if you like. > > The problem is that when doing this with a threaded webserver like > CherryPy (which is what TG runs on) each waiting client will tie up a > thread for no reason. This doesn't scale very well. > > One idea that I haven't tried out is to have something like Twisted > handle those connections asynchronously in a single thread - which > would be much easier on resources. Apache 2.2 has a new mpm module > specially built for this called "event". > > > It's more than quick enough for snappy information, the thing to > > beware of is the load, ie if you're trying to send a full stockmarket > > feed then you have to be very very careful about your message design. > > JSON is a bit too buky for that kind of thing unless they have a very > > fast link - you want a custom client instead so you can be clever. > > In my experience with ajax/json/xmlhttp and all that stuff, things are > usually faster and lighter than you expect. I say just give it a try > and measure performance - if you're not happy then optimize. > > Arnar > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "TurboGears" 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/turbogears?hl=en -~----------~----~----~----~------~----~------~--~---
