News, notes, tips and tricks from the Google App Engine Team Since App Engine debuted 2 years ago, we’ve written extensively about best practices for writing scalable apps on App Engine. We make writing scalable apps as easy as possible, but even so, getting everything right can be a challenge - and when you don’t, it can be tough to figure out what’s going wrong, or what’s slowing your app down.
![Easy Performance Profiling with Appstats](https://cdn-ak-scissors.b.st-hatena.com/image/square/321d133f67171b6f36370f27353291c9785920bd/height=288;version=1;width=512/http%3A%2F%2F1.bp.blogspot.com%2F_dLfQMJsmsaI%2FS7NKKyRM5-I%2FAAAAAAAAAEA%2FrfaOPZXtr80%2Fw1200-h630-p-k-no-nu%2FPicture%2B4.png)