Hi Simon, CPU usage doesn't matter when your app is single-threaded because the entire instance will be allocated throughout the request.
But for multi-threaded apps the docs tell a different story: "Multi-threaded instances can handle many concurrent requests. Therefore, there is a direct relationship between the CPU consumed and the number of requests/second." .... "For example, if a B4 backend instance<http://code.google.com/appengine/docs/python/backends/overview.html#Billing_Quotas_and_Limits> (approx 2.4GHz) consumes 10 Mcycles/request, you can process 240 requests/second/instance." Unfortunately the docs won't tell how CPU consumption is actually measured. I guess API calls don't consume cycles - at least not while an RPC is underway. I'm not sure though if the clock stops ticking while a thread is laying asleep. Wolfram -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-appengine/-/NkMLYxWlSwUJ. 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.
