So if I get stick to the "vertical scalability"(Site has sessions), is it gonna be helpful for performance to run Twisted reactor on a single core machine vs multi-core machine (after all Python itself has a Global Interpreter Lock)? OR the entire "TwsitedGateway+listenSSL+Site+reactor" USAGE should be re-designed for the project?
What about 64bit machine influence on Twisted? Quoting "Reza Lotun" <rlo...@gmail.com>: >> thank you for such detailed response. >> I feel, finally I've succeed to express my original question correctly. >> >> So if I go one step forward, and lets assume that indeed there is such >> limit of concurrent connections, THAN: >> should it be resolved by another architecture or another usage type of >> Twisted technology or something else? > > Again, I don't think there are any universal answers to this question. > It depends on what you're building. For example, say it's a REST api, > which by design is stateless (i.e. no sessions). Then you can stick a > load balancer in front (if you're on EC2 amazon has an "elastic load > balancer" service for this) and load balance amongst many machines. As > you find traffic increases you simply add more machines. This is > called "horizontal scalability" and, as you might imagine, its highly > desirable. > > Another form is "vertical scalability" - that involves getting a > faster computer to run your server on. This might work for some cases, > but not in general - it seems to be the method applied to scaling > RDBMSs, before going down the road of master/slave setups, sharding > and denormalization. > > Of course, you *could* use a different technology entirely when you > need to scale really high. This might make sense if your'e a small > company and growing - say you start out as a small team, and you need > something up quickly that's fairly decent. You happen to know python > so you roll the whole thing out in Twisted. As time progresses, you > may rewrite certain systems in, say, erlang or something and move > forward. > > So, it's hard to say, really. At least, I'd like to know myself ;-) > That's what makes the wheel field so interesting - there's a certain > creative element to scalable systems. > > Cheers, > Reza > > -- > Reza Lotun > mobile: +44 (0)7521 310 763 > email: rlo...@gmail.com > work: r...@tweetdeck.com > twitter: @rlotun > > _______________________________________________ > Twisted-Python mailing list > Twisted-Python@twistedmatrix.com > http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python > _______________________________________________ Twisted-Python mailing list Twisted-Python@twistedmatrix.com http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python
