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2026-03-14 - 17:42
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 792 highest latencies:
System rack7slot8.osadl.org (updated Sat Mar 14, 2026 13:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
726321045212,466sleep06822-21kworker/0:107:05:260
81409914168,39cyclictest1305-21snmpd12:10:340
81409914055,47cyclictest1408-21nginx12:00:420
81409914051,34cyclictest19410-21df12:05:140
81409913561,37cyclictest24726-21ntp_states08:10:410
81409913360,53cyclictest1408-21nginx10:55:360
81409913174,39cyclictest24260-21pluginstate10:15:420
81409913074,38cyclictest27510-21runrttasks08:21:120
81409912970,40cyclictest1408-21nginx11:25:400
81409912954,22cyclictest19635-21fw_forwarded_lo07:50:450
81409912856,34cyclictest16694-21diskstats07:40:230
81409912854,35cyclictest18871-21gpgv07:50:040
81409912660,47cyclictest32646-21wget10:50:140
81409912656,33cyclictest25640-21df12:30:140
81409912563,42cyclictest15299-21mailstats09:40:450
81409912553,34cyclictest14091-21sshd09:35:490
81409912552,34cyclictest13903-21irqstats07:30:320
81409912484,30cyclictest754-21systemd-journal12:21:230
81409912456,32cyclictest16008-21apt-get07:37:100
81409912455,48cyclictest1305-21snmpd08:30:450
81409912455,48cyclictest12162-21find09:30:160
81409912451,21cyclictest19305-21/usr/sbin/munin09:56:090
81409912370,41cyclictest10603-21apt-get07:20:010
81409912363,21cyclictest21813-21grep10:05:450
81409912350,36cyclictest22648-21wget10:10:120
81409912350,36cyclictest11289-21df07:20:270
81409912260,41cyclictest754-21systemd-journal11:20:010
81409912250,36cyclictest16182-21df09:45:190
81409912250,34cyclictest2858-21sshd11:00:220
81409912250,32cyclictest1276-21runrttasks09:15:160
81409912180,31cyclictest17229-21/usr/sbin/munin09:50:230
81409912161,39cyclictest32443-21latency_hist10:50:040
81409912051,33cyclictest1305-21snmpd09:24:450
81409912050,36cyclictest28312-21fw_conntrack08:25:250
81409912050,34cyclictest1305-21snmpd11:05:090
81409912048,53cyclictest1876-21apt08:50:100
81409912048,31cyclictest1010-21ntp_states08:45:420
81409911975,35cyclictest12499-21munin-plugin-st11:40:020
81409911974,34cyclictest1408-21nginx08:40:480
81409911965,40cyclictest787-21haveged07:10:390
81409911949,51cyclictest27944-21ntpq10:30:350
81409911949,51cyclictest20644-21wget07:55:130
81409911946,41cyclictest14852-21runrttasks11:48:540
81409911858,41cyclictest7648-21aten_r7power_cu11:20:130
81409911747,51cyclictest13379-21chrt11:41:540
81409911669,37cyclictest3952-21chrt08:57:320
81409911659,39cyclictest25716-21who10:20:500
81409911648,37cyclictest16726-21ntp_states11:55:380
81409911645,51cyclictest6901-21aten_r7power_en09:10:110
81409911572,32cyclictest29912-21runrttasks10:39:470
81409911547,32cyclictest5514-21ntp_states11:10:390
81409911545,19cyclictest22021-21irqstats12:15:400
81409911544,31cyclictest21961-21wget08:00:140
81409911474,32cyclictest27279-21/usr/sbin/munin12:35:440
81409911462,40cyclictest12575-21runrttasks07:25:230
81409911454,20cyclictest26582-21fw_forwarded_lo10:25:270
81409911451,46cyclictest24575-21seq12:25:330
81409911449,48cyclictest1305-21snmpd08:19:290
81409911369,33cyclictest1305-21snmpd11:30:180
81409911353,19cyclictest5624-21/usr/sbin/munin09:05:110
81409911270,30cyclictest30195-21wget10:40:150
81409911159,40cyclictest10250irq/56-4a10000009:25:120
81409911155,42cyclictest10250irq/56-4a10000008:35:490
81409911049,43cyclictest1276-21runrttasks09:04:400
81409911047,21cyclictest15288-21df11:50:160
81409910847,22cyclictest20323-21diskstats10:00:220
81409910757,40cyclictest23699-21users08:05:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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