Lines Matching refs:jitter
575 * calculates the mean offset and RMS jitter. A time adjustment
620 * Determine the offset and jitter.
623 pp->jitter = 0;
626 pp->jitter += SQUARE(off[k] - off[k - 1]);
629 m -= (m > 1); /* only (m-1) terms attribute to jitter! */
630 pp->jitter = max(SQRT(pp->jitter / m), LOGTOD(sys_precision));
633 * If the source has a jitter that cannot be estimated, because
634 * it is not statistic jitter, the source will be detected as
635 * falseticker sooner or later. Enforcing a minimal jitter value
636 * avoids a too low estimation while still detecting higher jitter.
639 * clock dispersion, not the clock jitter, despite being called
640 * jitter. To see the modified values, check the NTP clock variable
641 * "filtdisp", not "jitter".
643 pp->jitter = max(pp->jitter, pp->fudgeminjitter);
648 "refclock_sample: n %d offset %.6f disp %.6f jitter %.6f\n",
649 (int)n, pp->offset, pp->disp, pp->jitter);
702 clock_filter(peer, pp->offset, 0., pp->jitter);