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Searched refs:jitter (Results 1 – 25 of 46) sorted by relevance

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/linux-6.15/drivers/iio/common/inv_sensors/
H A Dinv_sensors_timestamp.c48 ts->min_period = INV_SENSORS_TIMESTAMP_MIN(chip->clock_period, chip->jitter); in inv_sensors_timestamp_init()
49 ts->max_period = INV_SENSORS_TIMESTAMP_MAX(chip->clock_period, chip->jitter); in inv_sensors_timestamp_init()
115 int64_t delta, jitter; in inv_align_timestamp_it() local
124 jitter = INV_SENSORS_TIMESTAMP_JITTER((int64_t)ts->period, ts->chip.jitter); in inv_align_timestamp_it()
125 if (delta > jitter) in inv_align_timestamp_it()
127 else if (delta < -jitter) in inv_align_timestamp_it()
/linux-6.15/Documentation/admin-guide/
H A Dkernel-per-CPU-kthreads.rst2 Reducing OS jitter due to per-cpu kthreads
26 - In order to locate kernel-generated OS jitter on CPU N:
43 To reduce its OS jitter, do any of the following:
62 To reduce its OS jitter, do the following:
73 To reduce its OS jitter, do one of the following:
202 housekeeping CPUs, which can tolerate OS jitter.
228 To reduce its OS jitter, do any of the following:
246 a. Avoid using oprofile, thus avoiding OS jitter from
259 commit prevents OS jitter due to vmstat_update() on
261 to entirely get rid of the OS jitter, but you can
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/linux-6.15/kernel/time/
H A Dntp.c201 txc->jitter = ntpdata->pps_jitter; in pps_fill_timex()
203 txc->jitter = ntpdata->pps_jitter / NSEC_PER_USEC; in pps_fill_timex()
233 txc->jitter = 0; in pps_fill_timex()
880 *jitter = ntpdata->pps_tf[0] - ntpdata->pps_tf[1]; in pps_phase_filter_get()
881 if (*jitter < 0) in pps_phase_filter_get()
882 *jitter = -*jitter; in pps_phase_filter_get()
993 long jitter; in hardpps_update_phase() local
997 correction = pps_phase_filter_get(ntpdata, &jitter); in hardpps_update_phase()
1004 if (jitter > (ntpdata->pps_jitter << PPS_POPCORN)) { in hardpps_update_phase()
1006 jitter, (ntpdata->pps_jitter << PPS_POPCORN)); in hardpps_update_phase()
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H A Dtime.c307 txc->jitter = tx32.jitter; in get_old_timex32()
336 tx32.jitter = txc->jitter; in put_old_timex32()
/linux-6.15/tools/testing/selftests/rcutorture/bin/
H A Djitterstart.sh21 echo jitterstart.sh: Missing count of jitter.sh scripts to start.
36 jitter.sh $jitter_i "${jittering_dir}/jittering" "$@" &
H A Dkvm.sh58 jitter="-1"
189 --jitter)
190 …checkarg --jitter "(# threads [ sleep [ spin ] ])" $# "$2" '^-\{,1\}[0-9]\+\( \+[0-9]\+\)\{,2\} *$…
191 jitter="$2"
264 jitter=0
478 split(jitter, ja);
596 -v jitter="$jitter" \
/linux-6.15/include/uapi/linux/
H A Dtimex.h81 __kernel_long_t jitter; /* pps jitter (us) (ro) */ member
120 long long jitter; /* pps jitter (us) (ro) */ member
/linux-6.15/net/sched/
H A Dsch_netem.c90 s64 jitter; member
482 if (q->latency || q->jitter || q->rate) in netem_enqueue()
558 delay = tabledist(q->latency, q->jitter, in netem_enqueue()
1029 q->jitter = PSCHED_TICKS2NS(qopt->jitter); in netem_change()
1062 q->jitter = nla_get_s64(tb[TCA_NETEM_JITTER64]); in netem_change()
1071 q->jitter = min_t(s64, abs(q->jitter), INT_MAX); in netem_change()
1180 qopt.jitter = min_t(psched_time_t, PSCHED_NS2TICKS(q->jitter), in netem_dump()
1192 if (nla_put(skb, TCA_NETEM_JITTER64, sizeof(q->jitter), &q->jitter)) in netem_dump()
/linux-6.15/Documentation/timers/
H A Dno_hz.rst8 efficiency and reducing OS jitter. Reducing OS jitter is important for
202 So you enable all the OS-jitter features described in this document,
204 your workload isn't affected that much by OS jitter, or is it because
206 by providing a simple OS-jitter test suite, which is available on branch
213 whether or not you have succeeded in removing OS jitter from your system.
214 If this trace shows that you have removed OS jitter as much as is
216 sensitive to OS jitter.
219 We do not currently have a good way to remove OS jitter from single-CPU
286 of OS jitter, including interrupts and system-utility tasks
290 * Some sources of OS jitter can currently be eliminated only by
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/linux-6.15/Documentation/sound/cards/
H A Dimg-spdif-in.rst43 This control is used to modify the locking/jitter rejection characteristics
44 of the block. Larger values increase the locking range, but reduce jitter
/linux-6.15/include/linux/iio/common/
H A Dinv_sensors_timestamp.h17 uint32_t jitter; member
/linux-6.15/include/linux/
H A Dtime32.h40 s32 jitter; member
/linux-6.15/Documentation/devicetree/bindings/clock/
H A Drenesas,versaclock7.yaml14 jitter attenuator ICs with fractional and integer dividers.
H A Dstarfive,jh7110-pll.yaml10 These PLLs are high speed, low jitter frequency synthesizers in the JH7110.
/linux-6.15/drivers/hte/
H A DKconfig10 less jitter. This framework provides a generic interface to such HTE
/linux-6.15/arch/mips/include/asm/octeon/
H A Dcvmx-spxx-defs.h427 uint64_t jitter:3; member
439 uint64_t jitter:3;
/linux-6.15/Documentation/devicetree/bindings/iio/frequency/
H A Dadi,adf4377.yaml14 The ADF4377 is a high performance, ultralow jitter, dual output integer-N
/linux-6.15/Documentation/scsi/
H A Dlpfc.rst33 jitter, or a device temporarily loses connectivity (due to its cable
/linux-6.15/kernel/rcu/
H A DKconfig257 Use this option to reduce OS jitter for aggressive HPC or
260 asymmetric multiprocessors. The price of this reduced jitter
284 Say Y here if you need reduced OS jitter, despite added overhead.
/linux-6.15/Documentation/iio/
H A Dad7606.rst135 up for the potential jitter induced by the delays in the interrupt handling.
/linux-6.15/tools/perf/Documentation/
H A Dperf-arm-spe.txt146 jitter=1 - use jitter to avoid resonance when sampling (PMSIRR.RND)
/linux-6.15/Documentation/devicetree/bindings/pci/
H A Dfsl,imx6q-pcie-common.yaml88 Note that the IMX6 LVDS clock outputs do not meet gen2 jitter
/linux-6.15/Documentation/driver-api/
H A Dpps.rst75 you should take into account the latencies and jitter introduced by
77 synchronized with PPS through USB. With USB 2.0, jitter may decrease
/linux-6.15/drivers/net/dsa/sja1105/
H A Dsja1105_static_config.h412 u64 jitter; member
/linux-6.15/drivers/perf/
H A Darm_spe_pmu.c216 GEN_PMU_FORMAT_ATTR(jitter);
332 reg |= FIELD_PREP(PMSIRR_EL1_RND, ATTR_CFG_GET_FLD(attr, jitter)); in arm_spe_event_to_pmsirr()

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