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How to make dump in pcap file with more sensitive in timestamp? #862

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#1055
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How to make dump in pcap file with more sensitive in timestamp?#862
#1055

Description

@minzak
minzak
opened on Feb 26, 2025

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?

Activity

  1. minzak commented on Mar 5, 2025

    @minzak
    minzak
    on Mar 5, 2025
    Author

    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

  2. jinliu777 commented on Mar 25, 2026

    @jinliu777
    jinliu777
    on Mar 25, 2026
    Contributor

    please refer this PR: #1055

  3. jfb8856606
    closed this as completedin #1055on Mar 27, 2026
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