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2026-06-04 - 19:52
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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 rack5slot2.osadl.org (updated Thu Jun 04, 2026 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
220702185169,11sleep00-21swapper/007:06:380
221602184167,12sleep30-21swapper/307:07:493
221582184167,12sleep10-21swapper/107:07:471
220352168151,13sleep20-21swapper/207:06:122
223202480,0sleep20-21swapper/210:14:482
103602460,1sleep22251399cyclictest11:11:372
292332450,0sleep20-21swapper/209:45:412
206962440,0sleep20-21swapper/210:29:452
112422430,0sleep30-21swapper/312:32:043
159202130,0sleep215922-21latency_hist09:40:012
119672130,0sleep30-21swapper/309:53:433
2250399104,1cyclictest3-21ksoftirqd/010:10:010
30238290,0sleep10-21swapper/111:05:191
225199990,7cyclictest8040-21ssh10:55:113
225039981,3cyclictest3809-21perf11:25:010
19371280,0sleep10-21swapper/109:25:191
225039977,0cyclictest41ktimersoftd/012:30:090
225039976,0cyclictest3-21ksoftirqd/012:25:000
225039975,0cyclictest3-21ksoftirqd/012:10:000
225039975,0cyclictest3-21ksoftirqd/011:40:140
225039975,0cyclictest3-21ksoftirqd/010:25:010
225039975,0cyclictest3-21ksoftirqd/010:20:010
225039972,0cyclictest81rcu_preempt07:45:120
225039970,1cyclictest7623-21apt-get09:20:110
225039970,1cyclictest3-21ksoftirqd/011:05:010
225089962,2cyclictest0-21swapper/111:45:111
225039965,0cyclictest3-21ksoftirqd/012:05:000
225039965,0cyclictest3-21ksoftirqd/011:05:110
225039965,0cyclictest3-21ksoftirqd/010:45:130
225039965,0cyclictest3-21ksoftirqd/008:20:170
225039965,0cyclictest3-21ksoftirqd/008:15:010
225039964,0cyclictest3-21ksoftirqd/012:20:000
225039964,0cyclictest3-21ksoftirqd/011:50:170
225039964,0cyclictest3-21ksoftirqd/011:45:110
225039964,0cyclictest3-21ksoftirqd/011:15:100
225039964,0cyclictest3-21ksoftirqd/010:55:010
225039964,0cyclictest3-21ksoftirqd/010:45:010
225039964,0cyclictest3-21ksoftirqd/010:35:010
225039964,0cyclictest3-21ksoftirqd/009:50:140
225039964,0cyclictest3-21ksoftirqd/009:45:120
225039964,0cyclictest3-21ksoftirqd/009:35:210
225039964,0cyclictest3-21ksoftirqd/009:35:010
225039964,0cyclictest3-21ksoftirqd/009:20:010
225039964,0cyclictest3-21ksoftirqd/008:05:110
225039964,0cyclictest3-21ksoftirqd/007:40:010
225039964,0cyclictest3-21ksoftirqd/007:15:010
225039963,2cyclictest3-21ksoftirqd/011:35:120
225039963,1cyclictest3-21ksoftirqd/012:10:010
225039963,1cyclictest3-21ksoftirqd/008:30:000
225039963,0cyclictest3-21ksoftirqd/011:30:120
225039962,1cyclictest3-21ksoftirqd/010:10:140
225039961,1cyclictest3-21ksoftirqd/008:35:190
225039960,1cyclictest3-21ksoftirqd/011:57:330
225039960,1cyclictest3-21ksoftirqd/008:55:110
225039960,1cyclictest0-21swapper/012:25:100
225039960,1cyclictest0-21swapper/009:40:140
225199950,5cyclictest0-21swapper/311:31:133
225199950,5cyclictest0-21swapper/311:01:153
225199950,5cyclictest0-21swapper/310:14:323
225199950,5cyclictest0-21swapper/309:21:003
225199950,5cyclictest0-21swapper/308:05:113
225199950,4cyclictest1069-21apt-get07:30:123
225199950,0cyclictest0-21swapper/311:55:223
225139955,0cyclictest0-21swapper/209:40:222
225139950,5cyclictest0-21swapper/209:15:192
225139950,4cyclictest0-21swapper/210:35:022
225139950,1cyclictest19561-21hddtemp_smartct12:20:152
225089951,2cyclictest0-21swapper/108:30:101
225089951,2cyclictest0-21swapper/108:20:121
225089950,5cyclictest0-21swapper/111:28:481
225089950,0cyclictest0-21swapper/111:11:561
225039954,0cyclictest3-21ksoftirqd/011:25:120
225039954,0cyclictest3-21ksoftirqd/010:55:180
225039954,0cyclictest3-21ksoftirqd/008:30:100
225039953,2cyclictest3-21ksoftirqd/008:40:150
225039953,0cyclictest3-21ksoftirqd/009:10:200
225039953,0cyclictest3-21ksoftirqd/008:00:010
225039951,4cyclictest3-21ksoftirqd/010:25:100
225039951,2cyclictest3-21ksoftirqd/010:35:110
225039951,0cyclictest81rcu_preempt09:25:120
225039950,1cyclictest81rcu_preempt09:55:120
225039950,1cyclictest3-21ksoftirqd/008:15:130
225039950,1cyclictest3-21ksoftirqd/007:20:150
225039950,1cyclictest0-21swapper/011:10:110
225039950,0cyclictest81rcu_preempt12:35:130
225039950,0cyclictest81rcu_preempt10:00:140
19119250,1sleep30-21swapper/310:28:463
225199944,0cyclictest40-21ksoftirqd/309:30:013
225199944,0cyclictest14913-21kworker/3:012:12:163
225199944,0cyclictest14913-21kworker/3:009:01:563
225199944,0cyclictest14913-21kworker/3:008:17:093
225199944,0cyclictest14913-21kworker/3:007:43:353
225199944,0cyclictest0-21swapper/310:16:003
225199943,1cyclictest40-21ksoftirqd/312:15:113
225199942,2cyclictest28955-21ssh11:20:323
225199942,1cyclictest802-21snmpd10:04:143
225199942,1cyclictest29069-21df07:20:113
225199942,1cyclictest23375-21ssh12:05:513
225199941,3cyclictest0-21swapper/312:00:203
225199940,4cyclictest8703-21apt-get07:45:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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