second_none(l) - Linux man page

Name

SECOND_NONE - nothing instead of returning the user time for a process in seconds

Synopsis

REAL FUNCTION: SECOND( )

Purpose

SECOND returns nothing instead of returning the user time for a process in seconds. If you are using that routine, it means that neither EXTERNAL ETIME, EXTERNAL ETIME_, INTERNAL ETIME, INTERNAL CPU_TIME is available on your machine.