| This patch scales down small offsets quadratically. Reduces sensitivity to jitter |
| |
| diff --git a/networking/ntpd.c b/networking/ntpd.c |
| index 4695c33..ac05815 100644 |
| --- a/networking/ntpd.c |
| +++ b/networking/ntpd.c |
| @@ -1654,6 +1654,17 @@ update_local_clock(peer_t *p) |
| */ |
| if (G.offset_to_jitter_ratio >= TIMECONST_HACK_GATE) |
| tmx.constant--; |
| + |
| +{ |
| + double d = p->lastpkt_delay; |
| + if (d > SLEW_THRESHOLD) |
| + d = SLEW_THRESHOLD; |
| + d /= 2; |
| + if ((abs_offset / d) < 1) { |
| + offset *= (abs_offset / d); |
| + } |
| +} |
| + |
| tmx.offset = (long)(offset * 1000000); /* usec */ |
| if (SLEW_THRESHOLD < STEP_THRESHOLD) { |
| if (tmx.offset > (long)(SLEW_THRESHOLD * 1000000)) { |
