diff options
| -rw-r--r-- | networking/ntpd.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/networking/ntpd.c b/networking/ntpd.c index f3a4177da..fd2f24a89 100644 --- a/networking/ntpd.c +++ b/networking/ntpd.c @@ -678,6 +678,18 @@ reset_peer_stats(peer_t *p, double offset) int i; bool small_ofs = fabs(offset) < 16 * STEP_THRESHOLD; + /* Used to set p->filter_datapoint[i].d_dispersion = MAXDISP + * and clear reachable bits, but this proved to be too agressive: + * after step (tested with suspinding laptop for ~30 secs), + * this caused all previous data to be considered invalid, + * making us needing to collect full ~8 datapoins per peer + * after step in order to start trusting them. + * In turn, this was making poll interval decrease even after + * step was done. (Poll interval decreases already before step + * in this scenario, because we see large offsets and end up with + * no good peer to select). + */ + for (i = 0; i < NUM_DATAPOINTS; i++) { if (small_ofs) { p->filter_datapoint[i].d_recv_time += offset; @@ -691,13 +703,13 @@ reset_peer_stats(peer_t *p, double offset) } else { p->filter_datapoint[i].d_recv_time = G.cur_time; p->filter_datapoint[i].d_offset = 0; - p->filter_datapoint[i].d_dispersion = MAXDISP; + /*p->filter_datapoint[i].d_dispersion = MAXDISP;*/ } } if (small_ofs) { p->lastpkt_recv_time += offset; } else { - p->reachable_bits = 0; + /*p->reachable_bits = 0;*/ p->lastpkt_recv_time = G.cur_time; } filter_datapoints(p); /* recalc p->filter_xxx */ |