[ntp:questions] Re: linux system clock egregiously slow!
hmurray at suespammers.org
Fri Jan 23 10:27:11 UTC 2004
>Hal> Not if your system is using the standard spread spectrum anti-EMI
>Hal> clock generation hacks. (I'm beginning to feel like a broken
>If it is, shouldn't I see my clock measurement vary randomly around
>the target frequency?
I think the modulation frequency is ballpark of 30 KHz. The deviation
is only a fraction of a percent. Handwave. That's my memory from
scanning a data sheet or several a long time ago.
You might be able to measure it if you had a solid reference to compare
it against. It won't be easy with a normal OS and typical hardware.
(You might be able to use something like the A/D in the audio
system as a reference clock.)
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