> I have my HZ set to 1000..Doesn't that mean I have a 1ms timer
> resolution..??
Yes.
> Why I ask is...when I run tcpdump I see the following...
>
> <..snip>
> 12:11:25.111201 10.0.1.1.1039 > 10.0.3.2.2000: udp 400
> 12:11:25.111575 10.0.1.1.1039 > 10.0.3.2.2000: udp 400
> 12:11:25.111949 10.0.1.1.1039 > 10.0.3.2.2000: udp 400
> 12:11:25.112324 10.0.1.1.1039 > 10.0.3.2.2000: udp 400
> <..snip..>
>
> How do I get in the timestamps a resolution greater than 1ms..or is it
> that the last three digits of the timestamp are just some junk values??
You don't have 1mS clock resolution. The clock and timer resolution are
different things. With RDTSC the time stamping is a lot more accurate
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