Valgrind

[hailstone]

Glest was mentioned as using Valgrind which I didn't realise previously:

Valgrind is an award-winning instrumentation framework for building dynamic analysis tools. There are Valgrind tools that can automatically detect many memory management and threading bugs, and profile your programs in detail.

http://www.valgrind.org/gallery/#games

[Dasaki]

hmm, I went to the website, but don't really understand what or why the GAE team need something like that.

[hailstone]

It's important to detect and remove memory problems. This program helps to do that and I wasn't saying GAE needed it, but that is a good idea now that you mention it.