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strace - Trace system calls and signals. A diagnostic, debugging and instructional userspace utility.
Process Monitor - Monitor file system, Registry, process, thread and DLL activity in real-time.
Valgrind - Valgrind is an instrumentation framework for building dynamic analysis tools.
JTracer - C++ exception (and generic) stack trace debug suite
perf - Perf is a simple app monitoring solution paired with meaningful alerts.
ltrace - ltrace intercepts and records dynamic library calls which are called by an executed process and the...