$Id$ ‣ OFFSET_ARRAY_SIZE pull in the following diff from MirBSD: | Commit ID: 100470A1C1009540C55 | CVSROOT: /cvs | Module name: src | Changes by: tg@herc.mirbsd.org 2007/10/08 12:04:34 UTC | | Modified files: | usr.sbin/ntpd : ntpd.h | | Log message: | reduce the number of probes in the clock filter down to 4, so that adjtime | is called at least approx. 3 times a hour, greatly helping us to reduce the | size of the spikes for systems with clock drift (but increasing susceptibi- | lity to latency-induced low-quality responses) | | tested on herc/rant with a value of 3 (adjust about 4 times an hour) | | XXX this should be made an ntpd.conf option instead of a define ASAP | XXX this should be reverted once we have adjfreq(2) but we use 3 here due to employment of adjtimex() which reduces usability of older deltas ‣ SETTIME_MIN_OFFSET reduce the minimum required time offset for 'ntpd -s' to use settimeofday() instead of adjtime(), in order to provide a faster time setting at start, since adjusting can take ages --- openntpd-3.9p1.orig/ntpd.h Sun May 14 05:28:58 2006 +++ openntpd-3.9p1/ntpd.h Mon Oct 8 12:17:58 2007 @@ -55,8 +55,12 @@ #define QSCALE_OFF_MAX 0.50 #define QUERYTIME_MAX 15 /* single query might take n secs max */ -#define OFFSET_ARRAY_SIZE 8 -#define SETTIME_MIN_OFFSET 180 /* min offset for settime at start */ +#ifdef USE_ADJTIMEX +#define OFFSET_ARRAY_SIZE 3 /* so they get invalidated faster */ +#else +#define OFFSET_ARRAY_SIZE 4 /* min. 3, recommended 6, max. 8 */ +#endif +#define SETTIME_MIN_OFFSET 12 /* min offset for settime at start */ #define SETTIME_TIMEOUT 15 /* max seconds to wait with -s */ #define LOG_NEGLIGEE 128 /* negligible drift to not log (ms) */