Re: hires timestamps for netif_rx()

From: David S. Miller (davem@redhat.com)
Date: Wed Jan 16 2002 - 20:08:52 EST


   From: Wilson Yeung <wilson@whack.org>
   Date: Wed, 16 Jan 2002 17:03:58 -0800 (PST)
   
   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.
   
Look at the x86 implementation of do_fast_time, it equals
do_gettimeofday() when TSC is present which is the only time
that do_gettimeofday is going to be more accurate than xtime.

Franks a lot,
David S. Miller
davem@redhat.com
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