kOTF 0.2 Description:
kOTF is a free and open sourc C++ library for execution trace generation. kOTF is inspired by ParaTools' OTF, but it is more flexible. And more importantly, kOTFis convenient, thread-safe where needed, and has low overhead, so it can be actually used to generate traces. Use kOTF to get more insight than a simple profiler provides, and with more control than an automatic instrumentation tool would provide (although an automatic instrumentation tool is on the works too).