This package contains a small app to help observe GC behavior while running in GAE.

• runtime.GC() successfully executes the GC within the execution of a single request.
• if runtime.MemStats.Sys exceeds the configured amount, the instance will be shutdown cleanly after the request if it finishes within ~1 second (i.e. /_ah/stop will be called).
• if a request exceeds configured memory amount and continues to run for more than 1 second, the request will be killed and instance shutdown uncleanly (i.e. /_ah/stop will not be called).

This package contains GAE components that test the module scaling policies, driven by various triggers (HTTP requests and push task queues).

• Taskqueue pushes to the worker module in bursts of ~10 tasks
• Automatic scaling does not strictly respect max_concurrent_requests
• As worker module is hit with traffic over a period of time, automatic scaling increases the number of instances; but seemingly gradually?