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| author | Denys Vlasenko | 2010-01-01 18:12:06 +0100 |
|---|---|---|
| committer | Denys Vlasenko | 2010-01-01 18:12:06 +0100 |
| commit | bfc2a32d8864eccbb0ce617ea1f9d114f581b872 (patch) | |
| tree | 0b29121c748058d397f77ea121f3d2b205180906 /networking/ntpd.c | |
| parent | dd6673bac58cebfa9733b142520f17e4a4e2975c (diff) | |
| download | busybox-bfc2a32d8864eccbb0ce617ea1f9d114f581b872.zip busybox-bfc2a32d8864eccbb0ce617ea1f9d114f581b872.tar.gz | |
ntpd: reduce poll interval increase rate
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'networking/ntpd.c')
| -rw-r--r-- | networking/ntpd.c | 35 |
1 files changed, 19 insertions, 16 deletions
diff --git a/networking/ntpd.c b/networking/ntpd.c index 508e355..1c0063e 100644 --- a/networking/ntpd.c +++ b/networking/ntpd.c @@ -6,7 +6,7 @@ * Licensed under GPLv2, see file LICENSE in this tarball for details. * * Parts of OpenNTPD clock syncronization code is replaced by - * code which is based on ntp-4.2.6. It carries the following + * code which is based on ntp-4.2.6, whuch carries the following * copyright notice: * *********************************************************************** @@ -39,6 +39,13 @@ #endif +/* Verbosity control (max level of -dddd options accepted). + * max 5 is very talkative (and bloated). 2 is non-bloated, + * production level setting. + */ +#define MAX_VERBOSE 2 + + #define RETRY_INTERVAL 5 /* on error, retry in N secs */ #define QUERYTIME_MAX 15 /* wait for reply up to N secs */ @@ -62,7 +69,7 @@ /* Poll-adjust threshold. * When we see that offset is small enough compared to discipline jitter, - * we grow a counter: += poll_ext. When it goes over POLLADJ_LIMIT, + * we grow a counter: += MINPOLL. When it goes over POLLADJ_LIMIT, * we poll_ext++. If offset isn't small, counter -= poll_ext*2, * and when it goes below -POLLADJ_LIMIT, we poll_ext-- */ @@ -81,19 +88,6 @@ /* Parameter averaging constant */ #define AVG 4 -/* Verbosity control (max level of -dddd options accepted). - * max 5 is very talkative (and bloated). 2 is non-bloated, - * production level setting. - */ -#define MAX_VERBOSE 2 - -#define VERB1 if (MAX_VERBOSE && G.verbose) -#define VERB2 if (MAX_VERBOSE >= 2 && G.verbose >= 2) -#define VERB3 if (MAX_VERBOSE >= 3 && G.verbose >= 3) -#define VERB4 if (MAX_VERBOSE >= 4 && G.verbose >= 4) -#define VERB5 if (MAX_VERBOSE >= 5 && G.verbose >= 5) - - enum { NTP_VERSION = 4, NTP_MAXSTRATUM = 15, @@ -270,6 +264,13 @@ struct globals { static const int const_IPTOS_LOWDELAY = IPTOS_LOWDELAY; +#define VERB1 if (MAX_VERBOSE && G.verbose) +#define VERB2 if (MAX_VERBOSE >= 2 && G.verbose >= 2) +#define VERB3 if (MAX_VERBOSE >= 3 && G.verbose >= 3) +#define VERB4 if (MAX_VERBOSE >= 4 && G.verbose >= 4) +#define VERB5 if (MAX_VERBOSE >= 5 && G.verbose >= 5) + + static double LOG2D(int a) { if (a < 0) @@ -1420,7 +1421,9 @@ recv_and_process_peer_pkt(peer_t *p) ); } if (rc > 0 && fabs(q->filter_offset) < POLLADJ_GATE * G.discipline_jitter) { - G.polladj_count += G.poll_exp; + /* was += G.poll_exp but it is a bit + * too optimistic for my taste at high poll_exp's */ + G.polladj_count += MINPOLL; if (G.polladj_count > POLLADJ_LIMIT) { G.polladj_count = 0; if (G.poll_exp < MAXPOLL) { |