Date: Fri, 05 Mar 1999 20:53:06 +0100 From: Poul-Henning Kamp <phk@freebsd.org> To: current@freebsd.org Subject: NTP nanokernel support (experimental) Message-ID: <8401.920663586@critter.freebsd.dk>
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http://www.freebsd.org/~phk/x.nanokernel.gz contains patches relative to -current to implement the new "nanokernel" PLL from Dave Mills. This only works with a ntpd v4, suggest 4.92c or better from: ftp://ftp.eecis.udel.edu/pub/ntp It does still not support the hardpps()/PPS_SYNC support, that will come later. Make sure to configure/make your ntpd-4 from scratch to gain advantage of the new resolution, simple recompilation may not be enough. (You also need to get timex.h from /sys/sys to /usr/include/sys. Make world recommended). You should now be truly limited to hardware performance (xtal tempco and interrupt jitter). Please send comments and observations, both positive AND negative. I am very interested in seing some peerstats files for refclocks running this code. Poul-Henning PS: See also http://www.freebsd.org/~phk/timechan.gif -- Poul-Henning Kamp FreeBSD coreteam member phk@FreeBSD.ORG "Real hackers run -current on their laptop." FreeBSD -- It will take a long time before progress goes too far! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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