Aspect Oriented Programming (AOP) for Erlang
IO statistics for Unix like OSes
QUAD Memory Access Profiling Toolset
Memory usage logger and analyzer
Library tools to collect timing in Java, C, C++
A simple threads toolkit with a portable interface
A real Win32 extensible passive debugger
Windows prebuilt binary of QCacheGrind (better known as KCacheGrind)
.Net Memory Profiler
Simple C library for helping writting code with no memory leaks
C++ Benchmarking Library