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2026-09-05 - 17:29
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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 Sat Sep 05, 2026 12:45:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
277122224157,53sleep30-21swapper/307:06:233
277162214150,22sleep20-21swapper/207:06:252
279672206150,22sleep10-21swapper/107:09:431
276772197157,26sleep00-21swapper/007:05:540
324432670,0sleep30-21swapper/310:55:193
28099991511,4cyclictest0-21swapper/111:08:031
28099991410,0cyclictest21-21ksoftirqd/109:38:271
2809999128,4cyclictest56-21kworker/1:112:04:001
2809999128,4cyclictest21-21ksoftirqd/112:26:221
2809999128,4cyclictest21-21ksoftirqd/108:53:391
2809999128,4cyclictest21-21ksoftirqd/108:08:551
2809999120,0cyclictest0-21swapper/111:41:361
2809999120,0cyclictest0-21swapper/111:41:351
28084991211,1cyclictest9-21ksoftirqd/009:10:010
28084991210,1cyclictest9-21ksoftirqd/012:40:000
2811799119,1cyclictest35-21ksoftirqd/310:40:143
2811799119,1cyclictest35-21ksoftirqd/310:40:013
28117991110,1cyclictest35-21ksoftirqd/311:34:593
2811099110,10cyclictest61650irq/122-eno110:16:262
2809999110,11cyclictest203-21jbd2/sda2-808:20:061
2809999110,11cyclictest0-21swapper/111:52:471
2809999110,11cyclictest0-21swapper/111:30:231
2809999110,11cyclictest0-21swapper/110:00:501
2809999110,10cyclictest0-21swapper/110:30:151
2809999110,0cyclictest0-21swapper/109:16:021
2808499119,1cyclictest9-21ksoftirqd/011:10:000
28084991110,1cyclictest9-21ksoftirqd/012:35:000
28084991110,1cyclictest9-21ksoftirqd/010:25:120
2811799109,1cyclictest35-21ksoftirqd/310:25:013
2811799109,1cyclictest35-21ksoftirqd/309:29:593
2811799109,1cyclictest35-21ksoftirqd/309:00:013
2811799108,1cyclictest35-21ksoftirqd/309:45:003
2811099100,9cyclictest0-21swapper/211:16:522
2811099100,6cyclictest19675-21apt-get11:25:112
2811099100,1cyclictest0-21swapper/208:55:152
2809999108,1cyclictest111rcu_preempt07:55:161
2809999100,10cyclictest0-21swapper/107:24:071
2808499109,1cyclictest9-21ksoftirqd/011:54:590
2808499109,1cyclictest9-21ksoftirqd/011:00:000
2808499108,1cyclictest9-21ksoftirqd/012:10:000
2808499108,1cyclictest9-21ksoftirqd/009:55:010
2808499108,1cyclictest9-21ksoftirqd/008:59:590
281179990,8cyclictest4850-21apt-get08:35:123
281109998,1cyclictest0-21swapper/210:41:492
281109996,2cyclictest11301-21snmpd09:35:462
281109992,6cyclictest14208-21kworker/u8:210:13:282
281109990,6cyclictest24181-21apt-get10:45:122
281109990,5cyclictest0-21swapper/211:50:122
281109990,5cyclictest0-21swapper/209:56:492
281109990,5cyclictest0-21swapper/209:10:052
281109990,5cyclictest0-21swapper/209:10:042
280999998,1cyclictest21-21ksoftirqd/111:35:231
280999998,1cyclictest21-21ksoftirqd/111:25:191
280999998,1cyclictest21-21ksoftirqd/109:55:221
280999998,1cyclictest21-21ksoftirqd/109:25:121
280999998,1cyclictest21-21ksoftirqd/108:15:011
280999997,1cyclictest111rcu_preempt09:30:141
280999990,9cyclictest0-21swapper/110:45:361
280999990,9cyclictest0-21swapper/107:37:401
280999990,9cyclictest0-21swapper/107:12:541
280999990,8cyclictest21-21ksoftirqd/110:15:201
280999990,8cyclictest21-21ksoftirqd/109:47:381
280999990,8cyclictest111rcu_preempt10:40:201
280999990,8cyclictest0-21swapper/109:50:171
280999990,8cyclictest0-21swapper/108:35:171
280999990,5cyclictest0-21swapper/108:42:281
280999990,5cyclictest0-21swapper/107:46:291
280849998,1cyclictest9-21ksoftirqd/010:10:000
280849998,1cyclictest9-21ksoftirqd/009:50:000
280849997,1cyclictest9-21ksoftirqd/009:55:170
280849997,1cyclictest9-21ksoftirqd/008:40:000
280849997,1cyclictest9-21ksoftirqd/008:00:000
280849997,1cyclictest9-21ksoftirqd/007:30:150
280849992,6cyclictest3402-21latency_hist07:25:010
281179987,1cyclictest35-21ksoftirqd/312:20:003
281179987,1cyclictest35-21ksoftirqd/311:45:013
281179987,1cyclictest35-21ksoftirqd/309:15:013
281179987,1cyclictest35-21ksoftirqd/309:15:003
281179987,1cyclictest35-21ksoftirqd/307:44:593
281179986,1cyclictest5154-21ntpq09:30:203
281179986,1cyclictest14698-21ntpq10:30:203
281179986,1cyclictest11301-21snmpd09:20:423
281179980,2cyclictest0-21swapper/310:25:103
281109986,1cyclictest61650irq/122-eno111:43:412
281109986,1cyclictest61650irq/122-eno111:43:412
281109986,1cyclictest61650irq/122-eno111:35:132
281109986,1cyclictest61650irq/122-eno111:31:342
281109986,1cyclictest61650irq/122-eno111:00:162
281109986,1cyclictest61650irq/122-eno107:35:152
281109986,1cyclictest11301-21snmpd08:47:302
281109984,2cyclictest240-21systemd-journal10:55:002
281109980,3cyclictest0-21swapper/208:15:102
281109980,3cyclictest0-21swapper/208:15:092
280999988,0cyclictest211ksoftirqd/109:00:201
280999988,0cyclictest211ksoftirqd/108:30:161
280999988,0cyclictest21-21ksoftirqd/112:36:141
280999988,0cyclictest21-21ksoftirqd/112:16:151
280999988,0cyclictest21-21ksoftirqd/111:49:231
280999988,0cyclictest21-21ksoftirqd/111:21:431
280999988,0cyclictest21-21ksoftirqd/111:10:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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