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2026-03-12 - 03:16
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackaslot8.osadl.org (updated Thu Mar 12, 2026 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
229872328297,21sleep10-21swapper/119:08:421
228852291264,17sleep20-21swapper/219:07:222
229082272242,20sleep00-21swapper/019:07:410
229642263232,20sleep30-21swapper/319:08:233
188962570,0sleep30-21swapper/322:11:393
50762550,0sleep30-21swapper/322:42:343
259522540,0sleep10-21swapper/120:25:131
108162210,0sleep20-21swapper/222:06:442
122332190,0sleep10-21swapper/122:07:511
176482180,0sleep30-21swapper/323:48:533
259412160,0sleep20-21swapper/223:53:552
296692140,0sleep20-21swapper/223:16:272
284952140,0sleep30-21swapper/321:38:453
46952120,0sleep10-21swapper/122:03:231
23206991211,1cyclictest34-21ksoftirqd/300:00:003
23201991211,1cyclictest28-21ksoftirqd/200:00:002
2320199103,5cyclictest28-21ksoftirqd/221:44:382
2320199102,5cyclictest28-21ksoftirqd/219:25:012
2320199100,2cyclictest28-21ksoftirqd/223:30:012
2320199100,2cyclictest28-21ksoftirqd/223:30:012
30004290,1sleep130005-21ssh00:15:211
232069997,1cyclictest34-21ksoftirqd/322:30:013
232019998,1cyclictest28-21ksoftirqd/221:50:022
232019993,4cyclictest28-21ksoftirqd/223:05:302
232019993,4cyclictest28-21ksoftirqd/221:29:432
232019993,4cyclictest28-21ksoftirqd/221:29:432
232019992,5cyclictest28-21ksoftirqd/221:46:282
232019992,4cyclictest28-21ksoftirqd/222:16:252
22943290,0sleep20-21swapper/222:53:372
32762280,0sleep30-21swapper/321:40:373
28532280,0sleep10-21swapper/120:30:141
25572280,0sleep10-21swapper/120:25:011
232019987,1cyclictest28-21ksoftirqd/219:35:022
232019983,4cyclictest28-21ksoftirqd/200:08:002
232019982,5cyclictest28-21ksoftirqd/222:13:422
232019982,4cyclictest28-21ksoftirqd/223:56:142
232019982,4cyclictest28-21ksoftirqd/223:42:212
232019982,4cyclictest28-21ksoftirqd/223:35:032
232019982,4cyclictest28-21ksoftirqd/223:20:052
232019982,4cyclictest28-21ksoftirqd/222:55:182
232019982,4cyclictest28-21ksoftirqd/222:30:592
232019982,4cyclictest28-21ksoftirqd/222:23:312
232019982,4cyclictest28-21ksoftirqd/221:35:372
232019982,4cyclictest28-21ksoftirqd/221:32:272
232019982,4cyclictest28-21ksoftirqd/221:24:042
232019982,4cyclictest28-21ksoftirqd/200:20:482
232019982,3cyclictest28-21ksoftirqd/221:19:572
232019981,5cyclictest28-21ksoftirqd/223:34:312
232019981,5cyclictest28-21ksoftirqd/220:36:302
232019981,4cyclictest28-21ksoftirqd/221:13:232
232019981,4cyclictest28-21ksoftirqd/200:32:472
232019981,4cyclictest28-21ksoftirqd/200:17:182
232019981,4cyclictest0-21swapper/221:55:352
232019981,2cyclictest28-21ksoftirqd/222:36:282
231989987,1cyclictest22-21ksoftirqd/121:20:001
231939986,1cyclictest24848-21rm23:53:060
17717280,0sleep00-21swapper/000:28:130
15922280,0sleep30-21swapper/300:07:093
4237270,0sleep00-21swapper/023:01:250
232069974,2cyclictest34-21ksoftirqd/323:55:003
232069974,2cyclictest34-21ksoftirqd/322:00:013
232069973,3cyclictest658-21snmpd23:12:223
232069973,3cyclictest560-21gdbus22:35:063
232069973,3cyclictest560-21gdbus22:17:003
232069973,3cyclictest504-21dbus-daemon23:36:213
232069973,3cyclictest275-21systemd-journal22:02:243
232069973,3cyclictest25151-11brltty22:28:393
232069971,1cyclictest141rcu_preempt20:05:113
232069970,3cyclictest4732-21unixbench_multi23:40:203
232069970,3cyclictest1607550ssh21:10:593
232069970,1cyclictest141rcu_preempt23:55:103
232019976,1cyclictest28-21ksoftirqd/223:10:022
232019974,2cyclictest23446-21apt-get20:20:112
232019973,3cyclictest1-21systemd19:35:022
232019972,3cyclictest28-21ksoftirqd/220:50:132
232019972,3cyclictest0-21swapper/200:35:052
232019971,4cyclictest28-21ksoftirqd/223:47:252
232019971,4cyclictest28-21ksoftirqd/222:45:072
232019971,4cyclictest28-21ksoftirqd/222:40:232
232019971,4cyclictest28-21ksoftirqd/222:25:352
232019971,4cyclictest28-21ksoftirqd/222:00:092
232019971,4cyclictest28-21ksoftirqd/221:02:082
232019971,4cyclictest28-21ksoftirqd/219:44:392
232019971,3cyclictest0-21swapper/200:12:112
232019971,2cyclictest28-21ksoftirqd/220:10:142
232019971,1cyclictest28-21ksoftirqd/200:25:142
232019970,4cyclictest28-21ksoftirqd/223:02:082
231989973,3cyclictest275-21systemd-journal19:21:471
231989973,3cyclictest26229-21ntpq22:55:151
231989972,2cyclictest26815-21dump-pmu-power23:35:001
231939974,2cyclictest658-21snmpd22:02:530
231939973,3cyclictest7847-21apt-get19:45:130
231939973,3cyclictest658-21snmpd22:49:270
231939973,3cyclictest560-21gdbus23:25:000
231939973,3cyclictest275-21systemd-journal21:24:020
231939972,3cyclictest504-21dbus-daemon22:40:000
232069966,0cyclictest0-21swapper/321:00:183
232069966,0cyclictest0-21swapper/300:39:273
232069963,2cyclictest7360-21ssh00:21:323
232069963,2cyclictest658-21snmpd23:05:223
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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