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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2013-12-04 17:12:11 +0100 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2013-12-04 17:12:11 +0100 |
| commit | 6c46eed6e935db43dedbff1d026e4cf68f0bc67e (patch) | |
| tree | f30cae486a4a5515b8a6956b2f128ea927084afa | |
| parent | a14958c69da798e2284e8ab29492bdbdd52a2278 (diff) | |
| download | busybox-6c46eed6e935db43dedbff1d026e4cf68f0bc67e.tar.gz | |
ntpd: comment out "spike detection" code
function old new delta
update_local_clock 982 835 -147
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | networking/ntpd.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/networking/ntpd.c b/networking/ntpd.c index aeef0431a..f3a4177da 100644 --- a/networking/ntpd.c +++ b/networking/ntpd.c @@ -334,7 +334,7 @@ struct globals { #define STATE_NSET 0 /* initial state, "nothing is set" */ //#define STATE_FSET 1 /* frequency set from file */ -#define STATE_SPIK 2 /* spike detected */ +//#define STATE_SPIK 2 /* spike detected */ //#define STATE_FREQ 3 /* initial frequency */ #define STATE_SYNC 4 /* clock synchronized (normal operation) */ uint8_t discipline_state; // doc calls it c.state @@ -1350,11 +1350,15 @@ update_local_clock(peer_t *p) * offset exceeds the step threshold and when it does not. */ if (abs_offset > STEP_THRESHOLD) { +#if 0 double remains; -// TODO: this "spike state" seems to be useless, peer selection already drops -// occassional "bad" datapoints. If we are here, there were _many_ large offsets - -// looks like _our_ clock is off. +// This "spike state" seems to be useless, peer selection already drops +// occassional "bad" datapoints. If we are here, there were _many_ +// large offsets. When a few first large offsets are seen, +// we end up in "no valid datapoints, no peer selected" state. +// Only when enough of them are seen (which means it's not a fluke), +// we end up here. Looks like _our_ clock is off. switch (G.discipline_state) { case STATE_SYNC: /* The first outlyer: ignore it, switch to SPIK state */ @@ -1377,6 +1381,7 @@ update_local_clock(peer_t *p) } /* fall through: we need to step */ } /* switch */ +#endif /* Step the time and clamp down the poll interval. * |