jitter (full) in projects: freebsd - OpenGrok search results

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Searched full:jitter (Results 1 – 25 of 159) sorted by relevance

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/freebsd/contrib/ntp/html/
H A D	cluster.html	`17 …he <em>i</em>th candidate on the list, a statistic called the <em>select jitter</em> relative to t… 21 …jitter φ<sub>S</sub>(<em>i</em>) computed as the root mean square (RMS) of the <em>d<sub>i</s… 22 …nation condition is met. Note that the select jitter must be recomputed at each round, but the pee… 27 …jitter and φ<sub><em>min</em></sub> be the minimum peer jitter over all candidates on the list…`
H A D	ntpdsim_new.html	`27 …e offset, frequency offset, propagation delay, processing delay, network jitter and oscillator wan… 36 …ifies the frequency offset, propagation delay, processing delay, network jitter and oscillator wan… 47 …eq_offset</tt> = <number> \| <tt>wander</tt> = <number> \| <tt>jitter</tt> = <number&… 71 jitter = 0.001; 78 jitter = 0.001; 90 jitter = 0.001; 97 jitter = 0.05;`
H A D	stats.html	31 … differencess in a sliding window of several samples. This is called <em>jitter</em> symbolized by… 44 …ion continue to grow at the same rate, 15 μs/s. Finally, the <em>peer jitter</em> φ is dete… 50 …eer from two statistics, <em>peer jitter</em> and <em>root distance.</em> Peer jitter is determine… 61 …ight factor by the combine algorithm when computing the system clock offset and system jitter.</li> 65 …jitter</em> are weighted averages computed by the clock combine algorithm. System offset is best …
H A D	clockopt.html	`57 <dd>If the source has a jitter that cannot be sensibly estimated, because 58 it is not statistic jitter, the source will be detected as falseticker 60 certain GPS receivers. Enforcing a minimal jitter value avoids a too 62 higher jitter. 64 clock dispersion, not the clock jitter, despite being called jitter. To 66 "jitter". 70 clocks with reliable jitter that do not intersect otherwise.`
H A D	ntpdsim.html	`31 …jitter and oscillator wander. For this purpose the daemon can be driven by pseudorandom jitter and… 36 <p>which starts the simulator with a time offset 100 ms, network jitter 1 ms, frequency offset 400 … 50 <dd>Specify network jitter parameter (0) s.</dd>`
H A D	prefer.html	35 …jitter. Absent other considerations discussed later, the <em>combined offset</em> is used to disci… 38 …5 ms. However, changes between servers can result in unnecessary system jitter. The object of the… 54 offset and jitter to produce the final values. However, if a prefer 56 …the offset and jitter of the prefer peer are used exclusively as the final values. In the common c… 75 …r is among the survivors, it becomes the system peer and its offset and jitter are inherited by t… 76 …a prefer peer, the PPS driver becomes the system peer and its offset and jitter are inherited by t…
H A D	assoc.html	38 …t>burst</tt> option described later on this page can be useful to reduce jitter on very noisy dial… 60 …nimum network overhead. The algorithm measures the incidental offset and jitter to determine the b… 63 …our. The poll interval algorithm slowly increases the poll interval when jitter dominates the erro… 64 …s the poll interval is managed automatically as a function of prevailing jitter and wander. The mo… 75 jitter or when the network attachment requires an initial calling or training
/freebsd/lib/libsys/
H A D	ntp_adjtime.2	`96 long jitter; /* pps jitter (us) (ro) / 99 long jitcnt; / jitter limit exceeded (ro) */ 172 PPS signal jitter exceeded (read-only). 199 .It Fa jitter 200 PPS jitter measured by the time median filter in microseconds 209 Number of seconds that have been discarded because the jitter measured 219 or where the calibration interval jitter exceeded two ticks (PPS,`
/freebsd/usr.sbin/cron/cron/
H A D	cron.8	`30 .Op Fl j Ar jitter 107 .It Fl j Ar jitter 108 Enable time jitter. 112 .Ar jitter . 116 .Ar jitter 118 Default is 0, which effectively disables time jitter. 124 Enable time jitter for superuser jobs.`
/freebsd/contrib/ntp/libntp/lib/isc/
H A D	random.c	`101 isc_random_jitter(isc_uint32_t max, isc_uint32_t jitter) { in isc_random_jitter() argument 104 REQUIRE(jitter < max \|\| (jitter == 0 && max == 0)); in isc_random_jitter() 106 if (jitter == 0) in isc_random_jitter() 110 return (max - rnd % jitter); in isc_random_jitter()`
/freebsd/contrib/ntp/util/
H A D	README	`14 The jitter.c program can be used to determine the timing jitter due to 16 dominant contribution to the jitter budget is the period of the hardware 19 the jitter is dominated only by the operating system.`
/freebsd/contrib/ntp/ntpq/
H A D	ntpq.1ntpqmdoc	`311 .Dl [tally]remote refid assid st t when pool reach delay offset jitter 371 frequency tolerance, pps frequency, pps stability, pps jitter, 372 calibration interval, calibration cycles, jitter exceeded, 500 .Dl [tally]remote refid st t when pool reach delay offset jitter 553 .It Cm jitter 632 reference id, reference time, system jitter, clock jitter, 728 combined system jitter 732 clock jitter 740 The jitter an [all...]`
H A D	ntpq.mdoc.in	`311 .Dl [tally]remote refid assid st t when pool reach delay offset jitter 371 frequency tolerance, pps frequency, pps stability, pps jitter, 372 calibration interval, calibration cycles, jitter exceeded, 500 .Dl [tally]remote refid st t when pool reach delay offset jitter 553 .It Cm jitter 632 reference id, reference time, system jitter, clock jitter, 728 combined system jitter 732 clock jitter 740 The jitter an [all...]`
H A D	ntpq-opts.def	431 .Dl [tally]remote refid assid st t when pool reach delay offset jitter 491 frequency tolerance, pps frequency, pps stability, pps jitter, 492 calibration interval, calibration cycles, jitter exceeded, 620 .Dl [tally]remote refid st t when pool reach delay offset jitter 673 .It Cm jitter 752 reference id, reference time, system jitter, clock jitter, 850 combined system jitter 854 clock jitter 862 The jitter and wander statistics are exponentially-weighted RMS averages. 863 The system jitter is defined in the NTPv4 specification; [all …]
H A D	ntpq.man.in	`404 .Dl [tally]remote refid assid st t when pool reach delay offset jitter 497 frequency tolerance, pps frequency, pps stability, pps jitter, 498 calibration interval, calibration cycles, jitter exceeded, 690 .Dl [tally]remote refid st t when pool reach delay offset jitter 777 .NOP \f\*[B-Font]jitter\f[] 882 reference id, reference time, system jitter, clock jitter, 1048 combined system jitter 1058 clock jitter 1075 The jitter an [all...]`
H A D	ntpq.1ntpqman	`404 .Dl [tally]remote refid assid st t when pool reach delay offset jitter 497 frequency tolerance, pps frequency, pps stability, pps jitter, 498 calibration interval, calibration cycles, jitter exceeded, 690 .Dl [tally]remote refid st t when pool reach delay offset jitter 777 .NOP \f\*[B-Font]jitter\f[] 882 reference id, reference time, system jitter, clock jitter, 1048 combined system jitter 1058 clock jitter 1075 The jitter an [all...]`
H A D	ntpq.texi	`369 @code{[tally]remote refid st t when pool reach delay offset jitter} 420 @item @code{jitter} 422 jitter 567 combined system jitter 579 clock jitter 595 The jitter and wander statistics are exponentially-weighted RMS averages. 596 The system jitter is defined in the NTPv4 specification; 597 the clock jitter statistic is computed by the clock discipline module. 739 @item @code{jitter} 741 filter jitter`
H A D	invoke-ntpq.texi	`307 [tally]remote refid assid st t when pool reach delay offset jitter 370 frequency tolerance, pps frequency, pps stability, pps jitter, 371 calibration interval, calibration cycles, jitter exceeded, 497 [tally]remote refid st t when pool reach delay offset jitter 551 @item @code{jitter} 632 reference id, reference time, system jitter, clock jitter, 730 combined system jitter 734 clock jitter 742 The jitter an [all...]`
/freebsd/sys/sys/
H A D	timex.h	`88 #define STA_PPSJITTER 0x0200 /* PPS signal jitter exceeded (ro) / 124 Note: The offset, precision and jitter members are in microseconds if 145 long jitter; /* PPS jitter (ns/us) (ro) / member 148 long jitcnt; / jitter limit exceeded (ro) */`
/freebsd/sys/net/
H A D	bpf_jitter.h	`44 * Prototype of a filtering function created by the jitter. 52 /* Structure describing a native filtering program created by the jitter. / 60 BPF jitter, builds a machine function from a BPF program.`
/freebsd/contrib/ntp/kernel/sys/
H A D	timex.h	`151 * MAXTIME is the maximum jitter tolerance of the PPS signal if the 160 #define MAXTIME (200L << PPS_AVG) /* max PPS error (jitter) (200 us) / 224 #define STA_PPSJITTER 0x0200 / PPS signal jitter exceeded (ro) / 276 long jitter; / pps jitter (us) (ro) / member 279 long jitcnt; / jitter limit exceeded (ro) */`
/freebsd/contrib/ntp/ntpd/
H A D	ntp_refclock.c	575 * calculates the mean offset and RMS jitter. A time adjustment 620 * Determine the offset and jitter. in refclock_sample() 623 pp->jitter = 0; in refclock_sample() 626 pp->jitter += SQUARE(off[k] - off[k - 1]); in refclock_sample() 629 m -= (m > 1); /* only (m-1) terms attribute to jitter! / in refclock_sample() 630 pp->jitter = max(SQRT(pp->jitter / m), LOGTOD(sys_precision)); in refclock_sample() 633 If the source has a jitter that cannot be estimated, because in refclock_sample() 634 * it is not statistic jitter, the source will be detected as in refclock_sample() 635 * falseticker sooner or later. Enforcing a minimal jitter valu in refclock_sample() [all...]
H A D	refclock_local.c	`51 * have a rather large jitter, depending on the interval between 206 pp->jitter = 0; in local_poll() 210 pp->jitter = 0; in local_poll()`
/freebsd/contrib/ntp/libntp/lib/isc/include/isc/
H A D	random.h	`54 isc_random_jitter(isc_uint32_t max, isc_uint32_t jitter); 56 * Get a random value between (max - jitter) and (max).`
/freebsd/contrib/ntp/html/drivers/
H A D	driver22.html	`25 …jitter and re-time a secondary server when synchronized to a primary server over a congested, wide… 43 a good deal of signal processing to reduce jitter using the median`

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