Collecting program execution statistics with Qemu processor emulator

This paper addresses the problem of improving efficiency of software implemented fault injection experiments. It is especially focused on the problem of collecting program execution statistics. The classical SWIFI depends on operating system´s debugging API. We introduce a new method which is based on Qemu—a versatile processor emulator. By altering Qemu´s dynamic code translation procedure we are able to collect execution statistics significantly faster than in the classical solutions. The achieved performance gain is illustrated with experimental results.