| /Linux-v4.19/tools/testing/selftests/rcutorture/bin/ |
| D | kvm.sh | 52 jitter="-1"
130 --jitter)
131 …checkarg --jitter "(# threads [ sleep [ spin ] ])" $# "$2" '^-\{,1\}[0-9]\+\( \+[0-9]\+\)\{,2\} *$…
132 jitter="$2"
186 jitter=0
328 -v jitter="$jitter" \
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| /Linux-v4.19/kernel/time/ |
| D | ntp.c | 196 txc->jitter = pps_jitter; in pps_fill_timex()
198 txc->jitter /= NSEC_PER_USEC; in pps_fill_timex()
228 txc->jitter = 0; in pps_fill_timex()
818 static inline long pps_phase_filter_get(long *jitter) in pps_phase_filter_get() argument
820 *jitter = pps_tf[0] - pps_tf[1]; in pps_phase_filter_get()
821 if (*jitter < 0) in pps_phase_filter_get()
822 *jitter = -*jitter; in pps_phase_filter_get()
932 long jitter; in hardpps_update_phase() local
936 correction = pps_phase_filter_get(&jitter); in hardpps_update_phase()
942 if (jitter > (pps_jitter << PPS_POPCORN)) { in hardpps_update_phase()
[all …]
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| /Linux-v4.19/Documentation/ |
| D | kernel-per-CPU-kthreads.txt | 2 Reducing OS jitter due to per-cpu kthreads
6 options to control their OS jitter. Note that non-per-CPU kthreads are
7 not listed here. To reduce OS jitter from non-per-CPU kthreads, bind
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:
87 To reduce its OS jitter, each softirq vector must be handled
202 housekeeping CPUs, which can tolerate OS jitter.
228 To reduce its OS jitter, do any of the following:
[all …]
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| D | 00-INDEX | 220 - List of all per-CPU kthreads and how they introduce jitter.
|
| /Linux-v4.19/drivers/staging/greybus/tools/ |
| D | README.loopback | 180 requests per-sec: min=390, max=547, average=469.299988, jitter=157
181 ap-throughput B/s: min=90480 max=126904 average=108762.101562 jitter=36424
182 ap-latency usec: min=1826 max=2560 average=2146.000000 jitter=734
183 apbridge-latency usec: min=1620 max=1982 average=1882.099976 jitter=362
184 gpbridge-latency usec: min=56 max=57 average=57.099998 jitter=1
194 requests per-sec: min=397, max=538, average=461.700012, jitter=141
195 ap-throughput B/s: min=92104 max=124816 average=106998.898438 jitter=32712
196 ap-latency usec: min=1856 max=2514 average=2185.699951 jitter=658
197 apbridge-latency usec: min=1460 max=2296 average=1828.599976 jitter=836
198 gpbridge-latency usec: min=56 max=57 average=57.099998 jitter=1
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| /Linux-v4.19/Documentation/timers/ |
| D | NO_HZ.txt | 6 efficiency and reducing OS jitter. Reducing OS jitter is important for
204 So you enable all the OS-jitter features described in this document,
206 your workload isn't affected that much by OS jitter, or is it because
208 by providing a simple OS-jitter test suite, which is available on branch
215 whether or not you have succeeded in removing OS jitter from your system.
216 If this trace shows that you have removed OS jitter as much as is
218 sensitive to OS jitter.
221 We do not currently have a good way to remove OS jitter from single-CPU
287 of OS jitter, including interrupts and system-utility tasks
291 o Some sources of OS jitter can currently be eliminated only by
[all …]
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| /Linux-v4.19/net/sched/ |
| D | sch_netem.c | 86 s64 jitter; member
464 if (q->latency || q->jitter || q->rate) in netem_enqueue()
526 delay = tabledist(q->latency, q->jitter, in netem_enqueue()
958 q->jitter = PSCHED_TICKS2NS(qopt->jitter); in netem_change()
991 q->jitter = nla_get_s64(tb[TCA_NETEM_JITTER64]); in netem_change()
1103 qopt.jitter = min_t(psched_tdiff_t, PSCHED_NS2TICKS(q->jitter), in netem_dump()
1115 if (nla_put(skb, TCA_NETEM_JITTER64, sizeof(q->jitter), &q->jitter)) in netem_dump()
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| /Linux-v4.19/Documentation/sound/cards/ |
| D | img-spdif-in.rst | 43 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-v4.19/kernel/ |
| D | compat.c | 54 txc->jitter = tx32.jitter; in compat_get_timex()
83 tx32.jitter = txc->jitter; in compat_put_timex()
|
| /Linux-v4.19/include/uapi/linux/ |
| D | timex.h | 80 __kernel_long_t jitter; /* pps jitter (us) (ro) */ member
|
| D | pkt_sched.h | 569 __u32 jitter; /* random jitter in latency (us) */ member
|
| /Linux-v4.19/arch/mips/include/asm/octeon/ |
| D | cvmx-spxx-defs.h | 485 uint64_t jitter:3; member
497 uint64_t jitter:3;
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| /Linux-v4.19/Documentation/devicetree/bindings/net/ |
| D | micrel-ksz90x1.txt | 63 clock because the clock jitter in slave mode is to high (errata#2).
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| /Linux-v4.19/Documentation/devicetree/bindings/pci/ |
| D | fsl,imx6q-pcie.txt | 28 do not meet gen2 jitter requirements and thus for gen2 capability a gen2
|
| /Linux-v4.19/Documentation/scsi/ |
| D | lpfc.txt | 35 jitter, or a device temporarily loses connectivity (due to its cable
|
| /Linux-v4.19/Documentation/pps/ |
| D | pps.txt | 73 you should take into account the latencies and jitter introduced by
75 synchronized with PPS through USB. With USB 2.0, jitter may decrease
|
| /Linux-v4.19/kernel/rcu/ |
| D | Kconfig | 223 Use this option to reduce OS jitter for aggressive HPC or
238 Say Y here if you want to help to debug reduced OS jitter.
|
| /Linux-v4.19/drivers/perf/ |
| D | arm_spe_pmu.c | 220 GEN_PMU_FORMAT_ATTR(jitter);
317 reg |= ATTR_CFG_GET_FLD(attr, jitter) << SYS_PMSIRR_EL1_RND_SHIFT; in arm_spe_event_to_pmsirr()
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| /Linux-v4.19/arch/mips/cavium-octeon/executive/ |
| D | cvmx-spi.c | 279 spxx_trn4_ctl.s.jitter = 1; in cvmx_spi_reset_cb()
|
| /Linux-v4.19/drivers/isdn/hardware/mISDN/ |
| D | hfc_multi.h | 47 int jitter; member
|
| D | hfcmulti.c | 2517 hc->chan[hc->dnum[0]].jitter | V_RX_INIT); in handle_timer_irq()
2519 hc->chan[hc->dnum[0]].jitter | V_RX_INIT); in handle_timer_irq()
4797 hc->chan[hc->dnum[0]].jitter = (port[Port_cnt]>>12) & 0x3; in init_e1_port_hw()
4802 __func__, hc->chan[hc->dnum[0]].jitter, in init_e1_port_hw()
4805 hc->chan[hc->dnum[0]].jitter = 2; /* default */ in init_e1_port_hw()
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| /Linux-v4.19/include/linux/ |
| D | compat.h | 152 compat_long_t jitter; member
|
| /Linux-v4.19/arch/alpha/kernel/ |
| D | osf_sys.c | 1242 long jitter; /* pps jitter (us) (ro) */ member
|
| /Linux-v4.19/drivers/input/tablet/ |
| D | aiptek.c | 1290 static DEVICE_ATTR(jitter,
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| /Linux-v4.19/Documentation/input/joydev/ |
| D | joystick.rst | 101 joystick is in the center position. They should not jitter by themselves to
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