Dynamic tracing of thread execution within an operating system kernel

摘要

In general, techniques are described for providing thread-level tracing within an operating system kernel. A computing device comprising processes, an operating system and a control unit that executes the operating system may implement the techniques. Each of the processes comprises an instance of an application program. Each of the processes comprises one or more separate threads of instruction execution. The operating system concurrently executes the processes. The control unit traces execution of a system call issued to the operating system by one of the threads currently being executed by the control unit to generate a trace log that traces execution of the system call by the operating system without tracing execution of any other ones of the one or more threads corresponding to those of the plurality of processes that are also being executed by the operating system during execution of the system call.