Messages in this thread |  | | Date | 14 Oct 2004 01:27:54 -0000 | From | linux@horizon ... | Subject | Re: Clock inaccuracy seen on NVIDIA nForce2 systems |
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> The system is running 2.6.9-rc4 and has been up for 2 days. I'm showing > an offset of -32 seconds and growing.
That's -185 ppm (parts per million) error, or -0.0185%.
Typical cheap quartz crystals are +/- 100 ppm, but there are some cheaper than that, and ceramic resonators like http://www.ecsxtal.com/cerares.htm
I know Dave Mills learned from experience that the original +/-100 ppm specs in NTP weren't wide enough and he had to change it to cope with +/-500 ppm error in some clocks.
It *could* just be your motherboard's clock source. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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