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2026-03-30 - 21:51
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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 Mon Mar 30, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
248112293262,21sleep10-21swapper/107:08:071
248112293262,21sleep10-21swapper/107:08:061
248172284257,18sleep20-21swapper/207:08:122
248172284257,18sleep20-21swapper/207:08:122
249252273241,21sleep00-21swapper/007:09:350
249252273241,21sleep00-21swapper/007:09:350
246842270240,20sleep30-21swapper/307:06:293
246842270240,20sleep30-21swapper/307:06:293
123242610,0sleep00-21swapper/009:46:190
325132600,0sleep10-21swapper/109:20:161
130372600,0sleep10-21swapper/111:44:121
49172570,0sleep00-21swapper/012:37:360
86732550,0sleep20-21swapper/210:23:242
247612550,0sleep00-21swapper/011:11:350
166022540,0sleep00-21swapper/011:06:430
142682530,0sleep20-21swapper/210:45:312
103652170,0sleep30-21swapper/311:22:393
92722150,0sleep10-21swapper/112:20:191
316382150,0sleep00-21swapper/009:39:000
228792140,0sleep00-21swapper/010:50:450
219132140,0sleep00-21swapper/009:52:030
144512140,0sleep30-21swapper/309:29:033
90792130,0sleep00-21swapper/012:20:180
25084991310,2cyclictest34-21ksoftirqd/312:20:003
211252130,0sleep10-21swapper/110:30:201
200872130,0sleep225067-21cyclictest09:12:482
119672120,2sleep228-21ksoftirqd/212:02:462
2508499119,2cyclictest34-21ksoftirqd/310:55:013
25084991110,1cyclictest34-21ksoftirqd/311:00:013
25084991110,1cyclictest34-21ksoftirqd/308:00:013
2508499109,1cyclictest34-21ksoftirqd/309:30:013
2508499109,1cyclictest34-21ksoftirqd/307:30:003
2508499108,1cyclictest331rcuc/310:00:013
250849998,1cyclictest34-21ksoftirqd/311:20:013
250849998,1cyclictest34-21ksoftirqd/310:10:013
250849998,1cyclictest34-21ksoftirqd/307:40:013
250849997,2cyclictest34-21ksoftirqd/310:30:013
250849997,1cyclictest34-21ksoftirqd/309:50:013
250849996,2cyclictest34-21ksoftirqd/312:15:003
250849996,2cyclictest34-21ksoftirqd/308:20:003
250849995,1cyclictest34-21ksoftirqd/310:40:023
250849993,2cyclictest34-21ksoftirqd/309:50:013
4932280,0sleep10-21swapper/110:20:311
26008280,0sleep00-21swapper/009:16:020
250849987,1cyclictest34-21ksoftirqd/312:04:593
250849987,1cyclictest34-21ksoftirqd/310:05:013
250849987,1cyclictest34-21ksoftirqd/309:25:003
250849987,1cyclictest34-21ksoftirqd/309:20:003
250849987,1cyclictest34-21ksoftirqd/308:05:013
250849987,1cyclictest34-21ksoftirqd/307:15:023
250849987,1cyclictest34-21ksoftirqd/307:15:013
250849987,1cyclictest331rcuc/309:35:003
250849986,1cyclictest34-21ksoftirqd/308:40:013
250819986,1cyclictest3584-21ssh12:36:322
250799982,4cyclictest15917-21dump-pmu-power08:00:001
250749981,1cyclictest141rcu_preempt12:05:130
24735280,0sleep30-21swapper/311:31:003
1755280,1sleep10-21swapper/110:00:011
5004270,0sleep10-21swapper/112:18:151
32552270,0sleep00-21swapper/011:16:120
250849976,1cyclictest34-21ksoftirqd/311:50:003
250849976,1cyclictest34-21ksoftirqd/310:50:013
250849976,1cyclictest34-21ksoftirqd/308:25:003
250849976,1cyclictest34-21ksoftirqd/307:20:023
250849975,2cyclictest34-21ksoftirqd/311:25:113
250849974,3cyclictest34-21ksoftirqd/310:20:003
250849974,2cyclictest8806-21cron09:45:013
250849974,1cyclictest34-21ksoftirqd/310:20:123
250849974,1cyclictest34-21ksoftirqd/308:50:143
250849973,2cyclictest275-21systemd-journal07:50:013
250849972,4cyclictest658-21snmpd11:50:103
250849972,4cyclictest331rcuc/308:10:133
250849971,4cyclictest34-21ksoftirqd/312:39:423
250849970,5cyclictest34-21ksoftirqd/310:30:303
250849970,5cyclictest34-21ksoftirqd/308:25:183
250849970,5cyclictest34-21ksoftirqd/307:50:203
250849970,4cyclictest31959-21grep11:55:163
250849970,1cyclictest0-21swapper/310:35:133
250819976,1cyclictest28-21ksoftirqd/210:00:002
250819976,1cyclictest28-21ksoftirqd/209:20:012
250819974,2cyclictest275-21systemd-journal08:55:212
250819973,3cyclictest658-21snmpd11:38:392
250819973,3cyclictest275-21systemd-journal11:47:162
250819971,5cyclictest560-21gdbus11:00:002
250799974,2cyclictest275-21systemd-journal11:55:311
250799973,3cyclictest658-21snmpd10:54:551
250799973,1cyclictest0-21swapper/111:05:131
250799971,3cyclictest2479-21munin-run10:20:011
250799970,6cyclictest2929-21ssh10:39:471
250799970,1cyclictest0-21swapper/109:32:391
250749974,2cyclictest5199-21cut10:40:170
250749973,3cyclictest658-21snmpd11:51:460
250749973,3cyclictest275-21systemd-journal11:45:480
250749973,3cyclictest275-21systemd-journal10:01:220
250749972,3cyclictest275-21systemd-journal08:15:080
250849963,2cyclictest9901-21ssh11:02:573
250849963,2cyclictest663-21runrttasks07:43:203
250849963,2cyclictest34-21ksoftirqd/308:45:123
250849963,1cyclictest141rcu_preempt12:21:043
250849963,1cyclictest141rcu_preempt07:30:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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