Searched refs:jitter (Results 1 - 25 of 31) sorted by relevance

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/freebsd-11-stable/contrib/ntp/lib/isc/
H A Drandom.c103 isc_random_jitter(isc_uint32_t max, isc_uint32_t jitter) { argument
106 REQUIRE(jitter < max || (jitter == 0 && max == 0));
108 if (jitter == 0)
112 return (max - rnd % jitter);
/freebsd-11-stable/contrib/ntp/lib/isc/include/isc/
H A Drandom.h54 isc_random_jitter(isc_uint32_t max, isc_uint32_t jitter);
56 * Get a random value between (max - jitter) and (max).
/freebsd-11-stable/contrib/ntp/ntpd/
H A Drefclock_local.c51 * have a rather large jitter, depending on the interval between
206 pp->jitter = 0;
210 pp->jitter = 0;
H A Dntp_refclock.c574 * calculates the mean offset and RMS jitter. A time adjustment
616 * Determine the offset and jitter.
619 pp->jitter = 0;
622 pp->jitter += SQUARE(off[k] - off[k - 1]);
625 m -= (m > 1); /* only (m-1) terms attribute to jitter! */
626 pp->jitter = max(SQRT(pp->jitter / m), LOGTOD(sys_precision));
629 * If the source has a jitter that cannot be estimated, because
630 * it is not statistic jitter, the source will be detected as
631 * falseticker sooner or later. Enforcing a minimal jitter valu
[all...]
H A Dntp_util.c535 * jitter
544 double jitter /* jitter */
561 delay, dispersion, jitter);
575 * jitter
583 double jitter, /* jitter */
600 day, ulfptoa(&now, 3), offset, freq * 1e6, jitter,
580 record_loop_stats( double offset, double freq, double jitter, double wander, int spoll ) argument
H A Dntpsim.c316 d1 = poisson(curr_script->prop_delay, curr_script->jitter);
318 d3 = poisson(curr_script->prop_delay, curr_script->jitter);
H A Dntp_proto.c101 double error; /* jitter */
102 double seljit; /* selection jitter */
150 double sys_jitter; /* system jitter */
2843 * p.psi is the PollProc's jitter
3190 peer->jitter = LOGTOD(sys_precision);
3332 * further improve the jitter estimate, of the remainder leave
3334 * least two samples for jitter calculation.
3346 * Compute the dispersion and jitter. The dispersion is weighted
3348 * to 1.0. The jitter is the RMS differences relative to the
3351 peer->disp = peer->jitter
[all...]
H A Dntp_loopfilter.c121 double clock_jitter; /* offset jitter */
344 * PPS jitter exceeded when time synchronization requested
661 * the jitter as the exponentially weighted offset
761 * frequency offsets for jitter and stability values and
810 * frequency and jitter.
829 ntv.jitter, ntv.status);
874 * offset with the clock jitter. If the offset is less than the
875 * clock jitter times a constant, then the averaging interval is
H A Dntp_request.c931 ip->selectdisp = HTONS_FP(DTOUFP(SQRT(pp->jitter)));
2468 ik->jitter = htonl((u_int32)ntx.jitter);
/freebsd-11-stable/sys/dev/firewire/
H A Dfwphyreg.h56 jitter:3, member in struct:phyreg_base
86 jitter:3,
/freebsd-11-stable/contrib/ntp/include/
H A Dntpsim.h85 double jitter; member in struct:script_info_tag
H A Dntp_refclock.h168 double jitter; /* jitter (mean squares) */ member in struct:refclockproc
176 double fudgeminjitter; /* manually set lower bound for jitter */
H A Dntp_request.h903 int32 jitter; member in struct:info_kernel
H A Dntp.h146 * Operations for jitter calculations (these use doubles).
148 * Note that we carefully separate the jitter component from the
365 double jitter; /* peer jitter (squares) */ member in struct:peer
/freebsd-11-stable/contrib/ntp/kernel/sys/
H A Dtimex.h151 * 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 in struct:timex
279 long jitcnt; /* jitter limit exceeded (ro) */
/freebsd-11-stable/sys/sys/
H A Dtimex.h90 #define STA_PPSJITTER 0x0200 /* PPS signal jitter exceeded (ro) */
126 * Note: The offset, precision and jitter members are in microseconds if
147 long jitter; /* PPS jitter (ns/us) (ro) */ member in struct:timex
150 long jitcnt; /* jitter limit exceeded (ro) */
/freebsd-11-stable/contrib/ntp/scripts/lib/NTP/
H A DUtil.pm103 my @columns = qw(tally host refid st t when poll reach delay offset jitter);
/freebsd-11-stable/contrib/ntp/util/
H A DMakefile.am7 EXTRA_PROGRAMS= audio-pcm byteorder hist jitter kern longsize ntp-keygen \
118 jitter_SOURCES= jitter.c
H A Dntptime.c359 htemp = (double)ntx.jitter * nscale;
360 printf(" pps frequency %.3f ppm, stability %.3f ppm, jitter %.3f us,\n",
362 printf(" intervals %lu, jitter exceeded %lu, stability exceeded %lu, errors %lu.\n",
H A DMakefile.in97 jitter$(EXEEXT) kern$(EXEEXT) longsize$(EXEEXT) \
174 am_jitter_OBJECTS = jitter.$(OBJEXT)
664 jitter_SOURCES = jitter.c
864 jitter$(EXEEXT): $(jitter_OBJECTS) $(jitter_DEPENDENCIES) $(EXTRA_jitter_DEPENDENCIES)
865 @rm -f jitter$(EXEEXT)
925 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jitter.Po@am__quote@
/freebsd-11-stable/sys/contrib/octeon-sdk/
H A Dcvmx-spxx-defs.h1221 * these bits were intended to compensate for clock jitter.
1225 * jitter: amount of jitter we expect in the system (~200ps)
1226 * j: number of taps to account for jitter
1228 * j = ((jitter / dly) + 1)
1369 uint64_t jitter : 3; /**< Accounts for jitter when the macro sequence is member in struct:cvmx_spxx_trn4_ctl::cvmx_spxx_trn4_ctl_s
1394 uint64_t jitter : 3;
H A Dcvmx-spi.c298 spxx_trn4_ctl.s.jitter = 1;
/freebsd-11-stable/sys/kern/
H A Dkern_ntptime.c190 static long pps_jitter; /* nominal jitter (ns) */
202 static long pps_jitcnt; /* jitter limit exceeded */
237 * PPS jitter exceeded when time synchronization requested
464 ntv.jitter = pps_jitter;
466 ntv.jitter = pps_jitter / 1000;
817 * dispersion (jitter) estimate.
844 * Nominal jitter is due to PPS signal noise and interrupt
/freebsd-11-stable/usr.sbin/ntp/ntpdc/
H A Dnl.c828 printf("offsetof(jitter) = %d\n",
829 (int) offsetof(struct info_kernel, jitter));
/freebsd-11-stable/usr.sbin/fwcontrol/
H A Dfwcontrol.c609 b.lctrl, b.c, b.jitter, b.pwr_class,

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