>> Take care about this, since this option, depending on your application >> and update intervals, may exhaust your free quotas or your bugdget >> very quickly. For example, supose you have 40 chat rooms per day with >> 40 users each one, with a lifespan of 2 hours per chat, with clients >> polling for updates each 5 seconds (that is, 12 status update requests >> per minute, just to make the whole thing look like "real time"), this >> sill result in: >> >> 40chats x 40uses x 120min x 12 reqs/min = 2304000 requests >> >> Assuming 200ms-cpu per request (process request, lookup >> memcache/datastore, write request, etc.), this yields: >> >> 2304000 requests * 200ms-cpu/requests = 460800000 ms-cpu = 128hours cpu >>
On Thu, Apr 2, 2009 at 8:46 AM, ryandscott <[email protected]> wrote: > > That is as I suspected. And yeah... that's a lot of cpu hours! Have you cnsidered using GTalk gadget ... You can see it in action here [1]_ Isn't it just enough ? NO CPU hours !!! =B) ... >> >> Also, there's something related to XMPP/GAE integration on the >> roadmap, in order to make GAE applications able to send/receive XMPP >> messages, but I believe that (a) this would imply that your chat's >> users must be registered/authenticated agains an XMPP server and that >> (b) you would need a third element -an XMPP server- to appear into >> action... >> ... and you need no XMPP server ... however ... XMPP/GAE integration seems to be an interesting idea ... Hope it helps ... .. [1] Blog de Simelo (http://simelo-es.blogspot.com/) -- Regards, Olemis. Blog ES: http://simelo-es.blogspot.com/ Blog EN: http://simelo-en.blogspot.com/ Featured article: Comandos : Pipe Viewer ... ¿Qué está pasando por esta tubería? --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google App Engine" 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/google-appengine?hl=en -~----------~----~----~----~------~----~------~--~---
