PAPI_get_real_nsec - Get real time counter value in nanoseconds.

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Version 7.1.0.0                                  Thu Dec 14 2023                           PAPI_get_real_nsec(3)

       This function returns the total real time passed since some arbitrary starting point. The time is
       returned in nanoseconds. This call is equivalent to wall clock time.

       SeealsoPAPI_get_virt_usecPAPI_get_virt_cycPAPI_library_init

       PAPI_get_real_nsec - Get real time counter value in nanoseconds.