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2026-03-16 - 05:46
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 100 highest latencies:
System rack1slot1.osadl.org (updated Mon Mar 16, 2026 00:45:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
303332214150,22sleep00-21swapper/019:06:240
305612200160,26sleep20-21swapper/219:09:252
302622198160,24sleep30-21swapper/319:05:303
304312196157,26sleep10-21swapper/119:07:421
30689991413,1cyclictest9-21ksoftirqd/022:40:010
3070199129,1cyclictest35-21ksoftirqd/319:20:003
30696991211,1cyclictest28-21ksoftirqd/220:20:012
3068999123,4cyclictest27106-21latency_hist21:55:010
3068999120,12cyclictest0-21swapper/019:35:120
3069699110,10cyclictest61650irq/122-eno123:57:282
3068999119,1cyclictest9-21ksoftirqd/000:03:580
3068999113,4cyclictest21940-21perf00:35:000
3068999103,6cyclictest21389-21ssh23:10:140
3068999101,4cyclictest27296-21latency_hist23:59:590
307019990,4cyclictest16656-21apt-get20:55:023
307019990,1cyclictest0-21swapper/322:25:103
306969994,3cyclictest0-21swapper/200:15:142
306969990,6cyclictest0-21swapper/222:45:592
306899998,1cyclictest9-21ksoftirqd/022:04:590
306899992,4cyclictest8422-21sed19:30:000
306899990,6cyclictest14460-21apt-get00:25:100
8808280,0sleep10-21swapper/122:54:551
648280,1sleep10-21swapper/122:00:251
307019987,1cyclictest707-21snmpd19:24:013
307019987,1cyclictest554-21dbus-daemon00:40:003
307019987,1cyclictest35-21ksoftirqd/319:55:423
307019986,1cyclictest707-21snmpd22:10:233
307019986,1cyclictest1747-21ntpd23:15:583
307019980,3cyclictest0-21swapper/321:16:263
306969986,1cyclictest707-21snmpd22:55:482
306969986,1cyclictest707-21snmpd00:09:062
306969986,1cyclictest61650irq/122-eno123:10:272
306969986,1cyclictest61650irq/122-eno121:30:262
306969986,1cyclictest61650irq/122-eno119:35:142
306969986,1cyclictest61650irq/122-eno100:20:162
306969986,1cyclictest61650irq/122-eno100:00:172
306969984,2cyclictest240-21systemd-journal22:25:002
306929981,3cyclictest0-21swapper/119:35:151
306899987,1cyclictest9-21ksoftirqd/023:00:000
306899987,1cyclictest9-21ksoftirqd/021:15:010
306899987,1cyclictest9-21ksoftirqd/000:10:000
306899987,1cyclictest0-21swapper/019:55:010
306899986,1cyclictest9-21ksoftirqd/021:59:590
306899986,1cyclictest9-21ksoftirqd/020:30:000
306899986,1cyclictest707-21snmpd21:39:490
306899986,1cyclictest707-21snmpd21:02:410
306899983,4cyclictest0-21swapper/020:20:130
306899981,6cyclictest4319-21telnet23:30:100
306899981,4cyclictest23938-21diskmemload22:15:010
306899981,4cyclictest23938-21diskmemload21:40:020
306899981,4cyclictest23938-21diskmemload21:40:020
306899980,7cyclictest8036-21ssh22:52:530
306899980,7cyclictest3365-21diskstats00:10:130
306899980,7cyclictest12397-21cat23:40:130
306899980,4cyclictest240-21systemd-journal20:20:010
306899980,4cyclictest0-21swapper/022:30:110
306899980,1cyclictest14690-21ntp_states19:40:160
307019976,1cyclictest707-21snmpd00:14:003
307019976,1cyclictest35-21ksoftirqd/323:05:003
307019975,1cyclictest707-21snmpd22:39:213
307019975,1cyclictest707-21snmpd20:41:573
307019975,1cyclictest707-21snmpd20:41:573
307019975,1cyclictest707-21snmpd20:31:553
307019975,1cyclictest707-21snmpd20:07:373
307019975,1cyclictest17131-21ntpq23:45:203
307019974,1cyclictest35-21ksoftirqd/320:54:553
307019974,1cyclictest240-21systemd-journal23:40:003
307019974,1cyclictest240-21systemd-journal23:40:003
307019974,1cyclictest240-21systemd-journal22:20:003
307019972,2cyclictest23938-21diskmemload22:42:243
307019971,4cyclictest23938-21diskmemload21:20:203
307019971,2cyclictest0-21swapper/323:31:473
307019971,1cyclictest19621-21diskmemload21:45:043
307019970,5cyclictest569-21nscd22:21:163
306969976,1cyclictest707-21snmpd20:48:152
306969976,1cyclictest61650irq/122-eno123:40:152
306969976,1cyclictest61650irq/122-eno122:30:182
306969976,1cyclictest61650irq/122-eno122:00:542
306969976,1cyclictest61650irq/122-eno121:55:142
306969976,1cyclictest61650irq/122-eno121:26:262
306969976,1cyclictest61650irq/122-eno121:20:352
306969976,1cyclictest61650irq/122-eno121:16:572
306969976,1cyclictest61650irq/122-eno119:25:112
306969976,1cyclictest61650irq/122-eno119:19:592
306969976,1cyclictest61650irq/122-eno100:36:462
306969976,1cyclictest61650irq/122-eno100:30:142
306969976,1cyclictest30677-21cyclictest23:03:572
306969976,0cyclictest61650irq/122-eno122:25:102
306969975,1cyclictest707-21snmpd22:09:362
306969975,1cyclictest707-21snmpd20:02:042
306969975,1cyclictest61650irq/122-eno123:24:192
306969975,1cyclictest61650irq/122-eno123:20:012
306969975,1cyclictest61650irq/122-eno122:50:122
306969975,1cyclictest61650irq/122-eno122:35:102
306969975,1cyclictest12842-21cat21:35:162
306969975,1cyclictest11261-21hddtemp_smartct22:15:152
306969973,2cyclictest240-21systemd-journal23:30:002
306969971,4cyclictest707-21snmpd22:13:062
306969971,3cyclictest18241-21apt-get19:50:122
306969971,1cyclictest4946-21ssh00:11:102
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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