FUNCTION::GET_CYCLES(3stap) Timestamp Functions FUNCTION::GET_CYCLES(3stap)

NAME function::get_cycles - Processor cycle count

SYNOPSIS get_cycles:long()

ARGUMENTS None

DESCRIPTION This function returns the processor cycle counter value if available, else it returns zero. The cycle counter is free running and unsynchronized on each processor. Thus, the order of events cannot determined by comparing the results of the get_cycles function on different processors.

SEE ALSO tapset::timestamp(3stap)

SystemTap Tapset Reference December 2016 FUNCTION::GET_CYCLES(3stap)