[ntp:questions] How to determin hardware latency for PPS offset given simple tools.

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Thu Jun 20 22:54:45 UTC 2013


Paul G wrote:
> BlackList wrote:
>> Is interrupt coalescing disabled on the gigabit ethernet adapters?
> Not by me. I assume when ntpq reports symmetric delays proportional
>   to interface speed that interrupts are not the issue for my question.
>  Perhaps that's a poor assumption.

Gigabit Ethernet adapter interrupt coalescing just makes
 the packet latency less deterministic, if you don't turn it off.

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