GAE: Appstats --- app performance monitoring of RPC calls (to DataStore, URLFetch, etc)

(for both Java and Pytho) -- use to measure app performance. Suite of App and API call profiling tools that record events and provide a web-based administrative interface for browsing statistics.

• The Java SDK includes the Appstats library used for profiling the RPC (Remote Procedure Call) performance of your application. An App Engine RPC is a roundtrip network call between your application and an App Engine Service API. For example, all of these API calls are RPC calls:

  • Datastore calls such as DatastoreService.get(), DatastoreService.put(), or DatastoreService.query().
  • Memcache calls such as MemcacheService.get(), or MemcacheService.getAll().
  • URL Fetch calls.
  • Mail calls.