http://sourceware.org/systemtap/examples/subsystem-index.html Tracing Calls for Sections of Code - http://sourceware.org/systemtap/examples/general/para-callgraph.stp Profile kernel functions - http://sourceware.org/systemtap/examples/process/pf2.stp Count Times Functions Called - http://sourceware.org/systemtap/examples/profiling/functioncallcount.stp Profile kernel functions - http://sourceware.org/systemtap/examples/profiling/thread-times.stp