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DateWed, 16 Jan 2002 17:03:58 -0800 (PST)
FromWilson Yeung <>
SubjectRe: hires timestamps for netif_rx()
On Wed, 16 Jan 2002, David S. Miller wrote:
>    I'd love to have a run-time tuneable kernel parameter that lets me use
>    do_gettimeofday() instead of get_fast_time for received packet
>    timestamping.  Does this seem reasonable?
>
> Can you demonstrate a difference in accurace between these two
> routines on any architecture :-)

The discreprency is that get_fast_time() returns the current value of
xtime, while do_gettimeofday() may actually calculate the time and
consider both xtime and the jiffies.


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