[ntp:questions] Re: Linux PPS triggering with NMEA
brad at stop.mail-abuse.org
Tue May 10 17:57:29 UTC 2005
At 5:29 PM +0000 2005-05-10, Bjorn Gabrielsson wrote:
> Thanks! I will try that too. Late last night I found rdtscl() and
> rdtsc(,). Which seem to capture a counter running at CPU speed - ca
> 2.002656 GHz. A 32-bit counter loops around in about 2 seconds! This
> gives all resolution I was asking about... and more.
This gives you resolution, but not accuracy. All that extra
resolution is garbage noise. The actual accuracy is still at the
Brad Knowles, <brad at stop.mail-abuse.org>
"Those who would give up essential Liberty, to purchase a little
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Assembly to the Governor, November 11, 1755
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