How to make dump in pcap file with more sensitive in timestamp?

[minzak]

When we uset typical dumping to PCAP in tshark we have this timestamps:

          "frame.time": "Feb  5, 2025 14:24:10.447573587 UTC",
          "frame.time_utc": "Feb  5, 2025 14:24:10.447573587 UTC",
          "frame.time_epoch": "1738765450.447573587",

When we use F-Stack native PCAP dumping, we have this:

          "frame.time": "Feb 21, 2025 19:00:52.899382000 UTC",
          "frame.time_utc": "Feb 21, 2025 19:00:52.899382000 UTC",
          "frame.time_epoch": "1740164452.899382000",

We fully lost all nanosec.
How to eliminate, fix it?

[minzak]

It doesn't help to change these settings in config.ini.

[dpdk]
pkt_tx_delay=0
[freebsd.boot]
# If use rack/bbr which depend HPTS, you should set a greater value of hz, such as 1000000 means a tick is 1us.
hz=1000000

[jinliu777]

please refer this PR: #1055