just for interest, why do you use a cpu heave application on node, which is 
built to serve I/O-heavy application?

Am Montag, 24. September 2012 22:21:12 UTC+2 schrieb David:
>
> Hi everyone,
>
> I'm trying to figure out which PaaS, if any, would suit my project best. 
> I've been searching and reading a lot but I'm still pretty new to this and 
> would like your opinion on the subject.
>
> My project is a physic based multiplayer game. The simulation is run 
> server side and is controlled by the input of players. About 60 times a 
> second, it broadcasts all changes to the players that share the same world. 
> Each world is run independently and accepts between 4 and 8 players.
>
> Right now, my prototype isn't optimized at all but I can already see that 
> I'll need to horizontally scale it at some point, so I'm trying to figure 
> out how it's going to be done.
>
> I understand I could do it on an IaaS like Joyent but I would like to see 
> if there's a PaaS out there that would simplify my work.
>
> Here are the requirements for the project:
>
> 1) While the number of concurrent connections might be low, the CPU usage 
> can be high, the solution needs to scale not only on the amount of 
> concurrent connections but also on the amount of CPU used. For example, 
> correct me if I'm wrong but I believe Nodejitsu only scales based on 
> concurrent request and hence isn't suited for CPU heavy app. The 
> application would just slows down and never scale because it doesn't reach 
> a specific concurrent connection threshold.
>
> 2) Low latency is also very important, this isn't a farm game, it's a 
> physic simulation with moving objects. At 50ms, my prototype plays really 
> smoothly but past 100-150ms, the experience starts to suffer. I need to be 
> able to make sure it stays low or act accordingly when it gets high.
>
> 3) The server sends a lot more data than it receives, so I expect this 
> could also be a bottleneck.
>
> That's basically it, any advice, pointers, tips are welcome.
>
> Thanks in advance.
>
>

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