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/freebsd/contrib/ntp/html/
H A Dclock.html1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
4 <meta http-equiv="content-type" content="text/html;charset=iso-8859-1">
11 <p>Last update:
12 <!-- #BeginDate format:En2m -->4-Aug-2011 23:40<!-- #EndDate -->
26 <p> The state machine is activated upon receipt of an update by the clock discipline algorithm. its…
28 …-of-year (TOY) chip to maintain the time when the power is off. When the computer is restarted, t…
30 …ever, if offset spikes greater than the step threshold persist for an interval more than the ste…
31 …emon sets the step threshold to 600 s using the <tt>-x</tt> option on the command line. If the <tt…
33 …-per-million (PPM) by the Unix kernel. As a result, the clock can take 33 minutes to amortize eac…
35 …interval the hold timer is set to the stepout threshold and decrements at one second intervals un…
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H A Ddiscipline.html1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
4 <meta http-equiv="content-type" content="text/html;charset=iso-8859-1">
7 <!-- Changed by: stenn, 03-Jan-2020 -->
12 <p>Last update:
13 <!-- #BeginDate format:En2m -->3-Jan-2020 02:12<!-- #EndDate -->
18 <li class="inline"><a href="#pll">Phase-Lock Loop Operations</a></li>
24 …-lock feedback loop. It is an intricately crafted algorithm that automatically adapts for optimum…
29 …update <em>V<sub>s</sub></em>. The loop filter implements a type-2 proportional-integrator contro…
30 …rrent offset divided by the time since the last update in order to minimize the offset at the next…
31 …interval described on the <a href="poll.html">Poll Program</a> page. However, in NTP symmetric mo…
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H A Dpoll.html1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
4 <meta http-equiv="content-type" content="text/html;charset=iso-8859-1">
11 <p>Last update:
12 <!-- #BeginDate format:En2m -->10-Mar-2014 05:17<!-- #EndDate -->
15 …k discipline algorithm. The process is designed to provide a sufficient update rate to maximize a…
16 …interval is managed by a heuristic algorithm developed over several years of experimentation. It d…
17 …f a single packet, the poll process can send a burst of several packets at 2-s intervals. This is …
19 …-o'-Death Packet</a> page. In addition, when <tt>iburst</tt> or <tt>burst</tt> are enabled, the fi…
20 …erver is unreachable, an unreach timer is incremented by 1 at each poll interval, but is set to 0 …
H A Dassoc.html1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
4 <meta http-equiv="content-type" content="text/html;charset=iso-8859-1">
13 <p>Last update:
14 <!-- #BeginDate format:En2m -->31-Jan-2014 06:54<!-- #EndDate -->
27 <li class="inline"><a href="#poll">Poll Interval Management</a></li>
37 … configuration in the Internet today. It operates in the classic remote-procedure-call (RPC) parad…
38 …scribed later on this page can be useful to reduce jitter on very noisy dial-up or ISDN network li…
39 <p>Ordinarily, the program automatically manages the poll interval between the default minimum and …
42 of low-stratum peers operate as mutual backups for each other. Each peer operates
48 this would be described as a &quot;push-pull&quot; operation, in that the
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/freebsd/contrib/wpa/src/ap/
H A Daccounting.c3 * Copyright (c) 2002-2009, 2012-2015, Jouni Malinen <j@w1.fi>
25 /* Default interval in seconds for polling TX/RX octets from the driver if
27 * input/output octets and updates Acct-{Input,Output}-Gigawords. */
47 radius_client_get_id(hapd->radius)); in accounting_msg()
55 wpa_printf(MSG_INFO, "Could not add Acct-Status-Type"); in accounting_msg()
61 hapd->conf->radius_acct_req_attr, in accounting_msg()
64 hapd->conf->ieee802_1x ? in accounting_msg()
67 wpa_printf(MSG_INFO, "Could not add Acct-Authentic"); in accounting_msg()
72 val = ieee802_1x_get_identity(sta->eapol_sm, &len); in accounting_msg()
75 if (!val && sta->identity) { in accounting_msg()
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/freebsd/usr.sbin/gstat/
H A Dgstat.82 .\" SPDX-License-Identifier: BSD-2-Clause
38 .Op Fl I Ar interval
47 .Bl -tag -width indent
67 Implies endless batch mode, but output is in the form of comma-separated
68 values, with ISO 8601-like timestamps.
81 .It Fl I Ar interval
85 .Ar interval
91 (the default) indicates that the update interval is specified in
105 .Bl -tag -width indent
107 Halve the update interval.
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/freebsd/sys/net80211/
H A Dieee80211_rssadapt.h2 /*-
3 * SPDX-License-Identifier: BSD-3-Clause
36 /* Data-rate adaptation loosely based on "Link Adaptation Strategy
41 /* Buckets for frames 0-128 bytes long, 129-1024, 1025-maximum. */
48 int interval; /* update interval (ticks) */ member
55 int ra_ticks; /* time of last update */
59 /* Tx failures in this update interval */
61 /* Tx successes in this update interval */
H A Dieee80211_rssadapt.c2 /*-
3 * SPDX-License-Identifier: BSD-3-Clause
57 /* RSS threshold update. */
60 /* RSS average update. */
78 (parm##_denom - parm##_old) * (new)) / \
118 struct ieee80211_rssadapt *rs = vap->iv_rs; in rssadapt_setinterval()
125 rs->interval = msecs_to_ticks(msecs); in rssadapt_setinterval()
133 KASSERT(vap->iv_rs == NULL, ("%s: iv_rs already initialized", in rssadapt_init()
137 vap->iv_rs = rs = IEEE80211_MALLOC(sizeof(struct ieee80211_rssadapt), in rssadapt_init()
143 rs->vap = vap; in rssadapt_init()
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/freebsd/contrib/ntp/ntpd/
H A Dntp_timer.c2 * ntp_timer.c - event timer support routines
41 #define TC_ERR (-1)
72 u_long endpt_scan_timer; /* interface update timer */
76 static u_long huffpuff_timer; /* huff-n'-puff timer */
149 if (-1 == rc) { in set_timer_or_die()
150 msyslog(LOG_ERR, "interval timer %s failed, %m", in set_timer_or_die()
159 * reinit_timer - reinitialize interval timer after a clock step.
187 * init_timer - initializ
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H A Dntp_loopfilter.c2 * ntp_loopfilter.c - implements the NTP loop filter algorithm
33 * in UDel TR 97-4-3, as amended. It operates as an adaptive parameter,
34 * hybrid phase/frequency-lock loop. A number of sanity checks are
41 #define CLOCK_PHI 15e-6 /* max frequency error (s/s) */
47 #define CLOCK_LIMIT 30 /* poll-adjust threshold */
48 #define CLOCK_PGATE 4. /* poll-adjust gate */
126 static u_long clock_epoch; /* last update */
155 int force_step_once = FALSE; /* always step time once at startup (-G) */
156 int mode_ntpdate = FALSE; /* exit on first clock set (-
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/freebsd/sys/contrib/device-tree/Bindings/power/supply/
H A Dda9150-fg.txt1 Dialog Semiconductor DA9150 Fuel-Gauge Power Supply bindings
4 - compatible: "dlg,da9150-fuel-gauge" for DA9150 Fuel-Gauge Power Supply
7 - dlg,update-interval: Interval time (milliseconds) between battery level checks.
8 - dlg,warn-soc-level: Battery discharge level (%) where warning event raised.
9 [1 - 100]
10 - dlg,crit-soc-level: Battery discharge level (%) where critical event raised.
12 [1 - 100]
17 fuel-gauge {
18 compatible = "dlg,da9150-fuel-gauge";
20 dlg,update-interval = <10000>;
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H A Ddlg,da9150-fuel-gauge.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/power/supply/dlg,da9150-fuel-gauge.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Dialog Semiconductor DA9150 Fuel-Gauge Power Supply
10 - Sebastian Reichel <sre@kernel.org>
13 - $ref: power-supply.yaml#
17 const: dlg,da9150-fuel-gauge
19 dlg,update-interval:
21 description: Interval time (milliseconds) between battery level checks.
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/freebsd/contrib/llvm-project/llvm/include/llvm/CodeGen/
H A DLiveIntervals.h1 //===- LiveIntervals.h - Live Interval Analysis -----------------*- C++ -*-===//
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
10 /// numbering of each the machine instructions (in this implemention depth-first
11 /// order) an interval [i, j) is said to be a live interval for register v if
14 /// this implementation intervals can have holes, i.e. an interval might look
17 //===----------------------------------------------------------------------===//
69 /// Live interval pointers for all the virtual registers.
79 /// MI = Indexes->getInstructionFromIndex(RegMaskSlot[N]);
81 /// RegMaskBits[N] = MI->getOperand(OpNum).getRegMask();
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/freebsd/contrib/tcpdump/
H A Dprint-babel.c2 * Copyright (c) 2007-2011 Grégoire Henry, Juliusz Chroboczek
35 * draft-ietf-babel-rfc6126bis-17
36 * draft-ietf-babel-hmac-10
37 * draft-ietf-babel-source-specific-0
42 #include "netdissect-stdinc.h"
57 ndo->ndo_protocol = "babel"; in babel_print()
98 #define MESSAGE_UPDATE_SRC_SPECIFIC 13 /* last appearance in draft-boutier-babel-source-specific-01…
106 /* sub-TLVs */
112 /* "Mandatory" bit in sub-TLV types */
118 /* Diversity sub-TLV channel codes */
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/freebsd/contrib/bsnmp/snmp_mibII/
H A DmibII.h2 * Copyright (c) 2001-2003
31 * Implementation of the interfaces and IP groups of MIB-II.
74 * Private mibif data - hang off from the mibif.
84 #define MIBIF_PRIV(IFP) ((struct mibif_private *)((IFP)->private))
133 * The table is read-only.
206 /* user-forced update interval */
209 /* current update interval */
212 /* re-compute update interval */
215 /* interfaces' data poll interval */
254 /* update arp table */
/freebsd/sys/sys/
H A Dtimex.h1 /*-
4 * Copyright (c) David L. Mills 1993-2001 *
5 * Copyright (c) Poul-Henning Kamp 2000-2001 *
29 * a joint work between Poul-Henning Kamp and David L. Mills.
45 * NAXPHASE or MAXFREQ are clamped to these maxima. For update intervals
47 * update intervals greater than MAXSEC, the loop always operates in FLL
54 #define MINSEC 256 /* min FLL update interval (s) */
55 #define MAXSEC 2048 /* max PLL update interval (s) */
110 * NTP user interface -- ntp_gettime(2) - used to read kernel clock values
121 * NTP daemon interface -- ntp_adjtime(2) -- used to discipline CPU clock
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H A Dtimeffc.h1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
38 * Feed-forward clock estimate
41 * Provides time of last daemon update, clock status and bound on error.
44 struct bintime update_time; /* Time of last estimates update. */
45 ffcounter update_ffcount; /* Counter value at last update. */
52 int8_t leapsec; /* Next leap second (in {-1,0,1}). */
73 * Parameters of counter characterisation required by feed-forward algorithms.
78 * Feed-forward clock status
120 * Feed-forward clock specific info structure. The feed-forward clock's
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/freebsd/sys/dev/qat/qat_common/
H A Dadf_gen4_timer.c1 /* SPDX-License-Identifier: BSD-3-Clause */
2 /* Copyright(c) 2007-2022 Intel Corporation */
12 /* Interval within timer interrupt. Value in miliseconds. */
15 /* MAX Interval within timer interrupt. Value in miliseconds. */
32 struct adf_accel_dev *accel_dev = hb_timer_data->accel_dev; in adf_hb_irq_bh_handler()
33 struct adf_hw_device_data *hw_data = accel_dev->hw_device; in adf_hb_irq_bh_handler()
34 u32 ae_mask = hw_data->ae_mask; in adf_hb_irq_bh_handler()
36 if (!accel_dev->int_timer || !accel_dev->int_timer->enabled) in adf_hb_irq_bh_handler()
39 /* Update heartbeat count via init/admin cmd */ in adf_hb_irq_bh_handler()
40 if (!accel_dev->admin) { in adf_hb_irq_bh_handler()
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/freebsd/contrib/ntp/html/hints/
H A Dnotes-xntp-v311 previous versions as non-configured peers; for version-2 configured
16 update generates an entry of the form:
37 require a 1-pulse-per-second signal, (b) supports both format 0
45 7. In Version 2 special line-discipline modules were required for the
51 8. Support for an external 1-pulse-per-second (pps) signal is
54 of the pulse establishes the on-time epoch within an interval
59 9. The clock-selection and poll-update procedures have been modified
65 versions of this distribution a DES-encrypted version of this routine
71 11. As an alternative to the DES-based authentication mechanism, an
77 13. A STREAMS module which captures carrier-detect data-lead transitions to
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/freebsd/contrib/llvm-project/llvm/include/llvm/ADT/
H A DIntervalMap.h1 //===- llvm/ADT/IntervalMap.h - A sorted interval map -------
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/freebsd/usr.bin/systat/
H A Dmode.c31 * mode.c - mechanisms for dealing with SGI-style modal displays.
33 * There are four generally-understood useful modes for status displays
34 * of the sort exemplified by the IRIX ``netstat -C'' and ``osview''
38 * RATE - the default mode - displays the precise rate of change in
40 * update interval.
42 * DELTA - displays the change in each statistic over the entire
43 * display update interval (i.e., RATE * interval).
45 * SINCE - displays the total change in each statistic since the module
48 * ABSOLUTE - displays the current value of each statistic.
50 * In the SGI programs, these modes are selected by the single-character
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/freebsd/contrib/ntp/scripts/update-leap/
H A Dupdate-leap.sh13 # leap-seconds file manager/updater
21 LEAPSRC="ftp://time.nist.gov/pub/leap-seconds.list"
25 INTERVAL=10
33 # How to restart NTP - older NTP: service ntpd? try-restart | condrestart
38 TMPFILE="/tmp/leap-seconds.$$.tmp"
57 Verifies and if necessary, updates leap-second definition file
60 -s Specify the URL of the master copy to download
62 -4 Use only IPv4
63 -6 Use only IPv6
64 -p 4|6
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/freebsd/contrib/ntp/scripts/stats/
H A DREADME.stats17 reception of each valid update from a configured peer.
34 valid update of the local clock.
36 49236 11.897 -0.000004 -35.9384 0
40 -0.000004 time offset (s)
41 -35.9384 frequency offset (ppm)
42 0 phase-lock loop time constant
50 further information. A line in the file is produced at each valid update
59 127.127.4.1 receiver identifier (Spectracom 8170/Netclock-2)
69 Spectracom 8170/Netclock-2 WWVB receiver
103 using an external cesium oscillator PPS and 5-MHz outputs.
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/freebsd/sys/contrib/openzfs/tests/zfs-tests/tests/functional/mmp/
H A Dmmp_on_uberblocks.ksh1 #!/bin/ksh -p
2 # SPDX-License-Identifier: CDDL-1.0
42 EXPECTED=$(($(echo $DISKS | wc -w) * 10))
44 MIN_UB_WRITES=$((EXPECTED - FUDGE))
56 log_assert "Ensure MMP uberblocks update at the correct interval"
69 if [ $UBER_CHANGES -lt $MIN_UB_WRITES ]; then
73 if [ $UBER_CHANGES -gt $MAX_UB_WRITES ]; then
78 SEQ_BEFORE=$(zdb -luuuu ${DISK[0]} | awk '/mmp_seq/ {if ($NF>max) max=$NF}; END {print max}')
80 SEQ_AFTER=$(zdb -luuuu ${DISK[0]} | awk '/mmp_seq/ {if ($NF>max) max=$NF}; END {print max}')
81 if [ $((SEQ_AFTER - SEQ_BEFORE)) -lt $MIN_SEQ_VALUES ]; then
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/freebsd/sys/kern/
H A Dkern_ntptime.c1 /*-
4 * Copyright (c) David L. Mills 1993-2001 *
22 * Poul-Henning Kamp <phk@FreeBSD.org>.
57 * Single-precision macros for 64-bit machines
61 #define L_SUB(v, u) ((v) -= (u))
63 #define L_NEG(v) ((v) = -(v))
67 (v) = -(-(v) >> (n)); \
77 ((v) = -((int64_t)(-(a)) << 32)); \
81 #define L_GINT(v) ((v) < 0 ? -(-(v) >> 32) : (v) >> 32)
104 * architecture-specific module. The interpolation can use either a
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