Module timestamp 

Functions

current_monotime

https://linux.die.net/man/3/clock_gettime Monotonically increasing timestamp, incremented by 1 when the clock interrupt is triggered. This clock source is used by the bpf_ktime_get_ns function.

current_realtime

System-wide realtime clock. It is generally synchronized with the clock of the master server through the ntp protocol.

delta_of_mono_real_time