TO_CYCLES
#define TO_CYCLES(ps, period_ns) (DIV_ROUND_UP((ps) / 1000, (period_ns)))
#define TO_CYCLES(duration, period) DIV_ROUND_UP_ULL(duration, period)
#define TO_CYCLES(ps, period_ns) (DIV_ROUND_UP(ps / 1000, period_ns))
#define TO_CYCLES(ps, period_ns) (DIV_ROUND_UP((ps) / 1000, period_ns))