Re: hires timestamps for netif_rx()

bill davidsen (davidsen@tmr.com)
Thu, 17 Jan 2002 14:15:53 -0500

In article <20020116.211251.35505694.davem@redhat.com> you write:
| From: Wilson Yeung <wilson@whack.org>
| Date: Wed, 16 Jan 2002 18:45:02 -0800 (PST)
|
| Notice that all the timestamps are the same, which led me to believe that
| xtime was being gotten directly.
|
| This is what happens only if your CPU lacks a timestamp counter
| (TSC on x86). What kind of CPU are you performing this experiment
| on?

In the part of the message you snipped:
> That's interesting, because when I call do_gettimeofday() instead of
> get_fast_time(), I get different kinds of results that imply that these
> are not equivalent. I'm running the kernel on a PIII.

I would think that was short for "Pentium-III" which should have TSC.

-- 
bill davidsen <davidsen@tmr.com>
  CTO, TMR Associates, Inc
Doing interesting things with little computers since 1979.
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