The papi_clockres utility.
papi_clockres - measures and reports clock latency and resolution for PAPI timers.
papi_clockres is a PAPI utility program that measures and reports the latency and resolution of the four PAPI timer functions: PAPI_get_real_cyc(), PAPI_get_virt_cyc(), PAPI_get_real_usec() and PAPI_get_virt_usec().
This utility has no command line options.
There are no known bugs in this utility. If you find a bug, it should be reported to the PAPI Mailing List at <email@example.com>.