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Searched refs:jitter (Results 1 – 25 of 48) sorted by relevance

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/freebsd/contrib/ntp/libntp/lib/isc/
H A Drandom.c101 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 DREADME14 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.
H A DMakefile.am7 EXTRA_PROGRAMS= audio-pcm byteorder hist jitter kern longsize lsf-times \
121 jitter_SOURCES= jitter.c
H A DMakefile.in97 jitter$(EXEEXT) kern$(EXEEXT) longsize$(EXEEXT) \
176 am_jitter_OBJECTS = jitter.$(OBJEXT)
263 ./$(DEPDIR)/jitter.Po ./$(DEPDIR)/kern.Po \
687 jitter_SOURCES = jitter.c
888 jitter$(EXEEXT): $(jitter_OBJECTS) $(jitter_DEPENDENCIES) $(EXTRA_jitter_DEPENDENCIES)
889 @rm -f jitter$(EXEEXT)
953 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jitter.Po@am__quote@ # am--include-marker
1249 -rm -f ./$(DEPDIR)/jitter.Po
1315 -rm -f ./$(DEPDIR)/jitter.Po
H A Dntptime.c359 htemp = (double)ntx.jitter * nscale; in main()
/freebsd/contrib/ntp/ntpd/
H A Drefclock_local.c51 * have a rather large jitter, depending on the interval between
206 pp->jitter = 0; in local_poll()
210 pp->jitter = 0; in local_poll()
H A Dntp_refclock.c575 * 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()
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H A Dntp_util.c578 * jitter
587 double jitter in record_peer_stats() argument
606 delay, dispersion, jitter); in record_peer_stats()
619 * jitter
627 double jitter, /* jitter */ in record_loop_stats()
644 day, ulfptoa(&now, 3), offset, freq * 1e6, jitter, in record_loop_stats()
626 record_loop_stats(double offset,double freq,double jitter,double wander,int spoll) record_loop_stats() argument
H A Dntp_proto.c3271 peer->jitter = LOGTOD(sys_precision); in peer_clear()
3437 peer->disp = peer->jitter = 0; in clock_filter()
3444 peer->jitter += DIFF(peer->filter_offset[j], in clock_filter()
3463 peer->jitter /= m - 1; in clock_filter()
3465 peer->jitter = max(SQRT(peer->jitter), LOGTOD(sys_precision)); in clock_filter()
3476 && etemp > CLOCK_SGATE * peer->jitter in clock_filter()
3503 peer->delay, peer->disp, peer->jitter); in clock_filter()
3506 peer->jitter)); in clock_filter()
3690 peers[nlist].error = peer->jitter; in clock_select()
4012 sys_jitter = typesystem->jitter; in clock_select()
[all …]
H A Dntpsim.c316 d1 = poisson(curr_script->prop_delay, curr_script->jitter); in simulate_server()
318 d3 = poisson(curr_script->prop_delay, curr_script->jitter); in simulate_server()
H A Dntpd-opts.def161 congestion, the roundtrip delay jitter can exceed three seconds and
177 network path congestion and jitter.
363 incidental roundtrip delay jitter and oscillator frequency wander
435 synchronization consistent with the observed jitter and wander.
/freebsd/sys/dev/firewire/
H A Dfwphyreg.h57 jitter:3, member
87 jitter:3,
/freebsd/contrib/ntp/libntp/lib/isc/include/isc/
H A Drandom.h54 isc_random_jitter(isc_uint32_t max, isc_uint32_t jitter);
/freebsd/contrib/ntp/ntpq/
H A Dntpq-opts.def431 .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 Dntpq.texi369 @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 Dinvoke-ntpq.texi307 [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 Dtimex.h145 long jitter; /* PPS jitter (ns/us) (ro) */ member
/freebsd/contrib/ntp/kernel/sys/
H A Dtimex.h276 long jitter; /* pps jitter (us) (ro) */ member
/freebsd/contrib/ntp/include/
H A Dntpsim.h85 double jitter; member
H A Dntp_refclock.h168 double jitter; /* jitter (mean squares) */ member
/freebsd/sys/kern/
H A Dkern_ntptime.c458 ntv->jitter = pps_jitter; in kern_ntp_adjtime()
460 ntv->jitter = pps_jitter / 1000; in kern_ntp_adjtime()
/freebsd/crypto/openssl/doc/man7/
H A DRAND.pod16 modern operating systems, which may use items such as interrupt jitter
/freebsd/contrib/bsnmp/snmp_ntp/
H A DBEGEMOT-NTP-MIB.txt108 "Current jitter in seconds multiplied by 2^32."
/freebsd/sys/contrib/device-tree/Bindings/pci/
H A Dfsl,imx6q-pcie.txt29 do not meet gen2 jitter requirements and thus for gen2 capability a gen2
/freebsd/sys/compat/freebsd32/
H A Dfreebsd32.h485 int32_t jitter;
484 int32_t jitter; global() member

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