Patent ID: 11748530

Abstract:
A computer device for characterising execution time by a processor, comprising a memory (8) which receives benchmark program data, sets of characterisation configuration data and sets of execution case data, and a constructor (4) which determines, for each set of execution case data, a set of worst-case configuration data of the processor and a set of initialisation values based on a set of execution case data, and determining a reference execution time by executing the benchmark program according to the set of execution case data using the processor configured with the set of configuration data with the set of initialisation values, all the reference execution times forming a set of reference execution times. The constructor (4) determines, for each set of characterisation configuration data, a set of characterisation execution times comprising a number of characterisation execution times equal to the number of elements of the set of reference execution times and each characterisation execution time being determined by executing the benchmark program using the processor configured with a set of characterisation configuration data and with a set of initialisation values representing the benchmark program and the processor. The constructor (4) determines a set of characterisation coefficients by applying an algorithm for determining the maximum likelihood between the set of reference execution times (M0) and the sets of characterisation execution times (M[k]), and the device returns the set of characterisation configuration data and the set of characterisation coefficients.