Messages in this thread | | | From | "Ulrich Windl" <> | Date | Fri, 26 Feb 1999 09:06:09 +0100 | Subject | announce (2.2.1, i386, experimental): PPSkit-0.6-i386-pre3.diff.gz |
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Hello,
it's really going to become a time mega-patch. I have fixed all the obvious problems in snapshot #2, and now I brought you snapshot #3 for the weekend.
Some tests indicated (on a Pentium-100 using TSC) that time occasionally runs backward in the fractional second (in 15 of 2000000 samples). I'll have to investigate that...
Using ntp-4.0.91f required some patches, because the "struct timex" lacks some magic from Dave Mills. Maybe even, that ntp version still has some bugs. I don't want to decide too early. PPS has significant jitter, too.
Maybe have a look. Compilation problems for some networking stuff should be fixed now, and the new MOD_* bits can be really used now.
The patch is a 100%-patch that is based on 2.2.1, but should apply with little fuzz to 2.2.2 too.
URLs: PPSkit-0.6-i386-pre3.diff.gz is on master.kernel.org in /pub/linux/daemons/ntp/PPS and on ftp://pcphy4.physik.uni- regensburg.de/pub/wiu09524/PPS, and maybe on a mirror close to you...
Regards, Ulrich Windl
P.S: pll offset: 31457 us # possibly ns pll frequency: -0.061 ppm maximum error: 20321 us # possibly ns estimated error: 2925 us # possibly ns status: 2107 pll time constant: 6 precision: 1 us frequency tolerance: 496 ppm pps frequency: -0.061 ppm pps stability: 0.102 ppm pps jitter: 25881 us # rather surely ns calibration interval: 256 s calibration cycles: 50 jitter exceeded: 15 stability exceeded: 0 calibration errors: 3
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