Profiling datastore queries in Google App Engine

Question

I have an app for GAE which uses datastore extensivly. I would like to see which queries happen most frequently. But the built-in statistics shows me only total reads/writes without specific details. Is there a way to see the detailed info on that or may be there is some profiling open-source project of a kind?

Thank you in advance.

Answer 1

Appstats can give you detailed information about all of the App Engine RPCs (datastore, memcache, etc) that are made in a given HTTP request.

There are also several open-source "mini profilers" for GAE that allow you to display the profiling information (both Appstats and normal method call profiling) easily on the rendered page itself:

• https://github.com/kamens/gae_mini_profiler - For Python
• https://github.com/jriecken/gae-java-mini-profiler - For Java

Answer 2

Appstats, for Python or Java.