Software Timestamp Values

Onload User Guide (UG1586)

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1.2 English

The value of the software timestamp is the start time for the poll that fetches the packet from the hardware.

Rarely, a packet might arrive during a poll, and can then be given the same timestamp as an earlier packet fetched by the same poll. If you are also using hardware timestamping for such a packet, its software timestamp might be earlier than its hardware timestamp.