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2025-11-22 - 09:11
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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 rackdslot0.osadl.org (updated Sat Nov 22, 2025 00:46:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1114699230,5cyclictest0-21swapper/223:59:392
1113599230,5cyclictest0-21swapper/019:43:320
11141992214,4cyclictest0-21swapper/120:16:161
1114199220,18cyclictest0-21swapper/121:44:421
1114199220,18cyclictest0-21swapper/121:44:421
1114199220,18cyclictest0-21swapper/100:05:241
1113599220,18cyclictest0-21swapper/019:40:010
1114699210,3cyclictest0-21swapper/220:12:572
11141992113,4cyclictest0-21swapper/123:01:231
11141992113,4cyclictest0-21swapper/123:01:231
11146992017,2cyclictest18676-21grep23:10:222
11146992014,3cyclictest4523-21H212:26:332
1114199202,17cyclictest0-21swapper/100:10:151
11141992017,2cyclictest18994-21mailstats23:10:261
11141992017,2cyclictest10581-21sh23:55:001
1113599200,1cyclictest4534-21H212:26:330
1114699192,16cyclictest7515-21nfsd422:50:202
11146991916,2cyclictest743-21wc23:35:202
1114699190,1cyclictest0-21swapper/223:21:592
1114699190,18cyclictest0-21swapper/220:35:402
1114699190,16cyclictest4530-21H212:26:332
1114199194,4cyclictest0-21swapper/120:55:191
1114199193,15cyclictest16278-21expr22:10:131
1114199192,2cyclictest4693-21cat21:50:021
1114199192,2cyclictest31554-21switchtime22:35:221
1114199192,1cyclictest0-21swapper/100:16:121
1114199192,16cyclictest8002-21ls21:55:161
1114199192,16cyclictest26973-21expr20:35:161
1114199192,16cyclictest0-21swapper/119:31:551
11141991917,1cyclictest21-21ksoftirqd/123:30:521
11141991917,1cyclictest18985-21expr20:20:161
11141991917,1cyclictest0-21swapper/122:48:341
11141991917,1cyclictest0-21swapper/121:04:301
11141991917,1cyclictest0-21swapper/119:15:011
11141991916,2cyclictest4523-21H212:26:331
11141991916,2cyclictest21-21ksoftirqd/100:26:261
11141991915,3cyclictest0-21swapper/123:20:051
11141991915,3cyclictest0-21swapper/119:20:031
1114199190,18cyclictest0-21swapper/120:42:511
1114199190,18cyclictest0-21swapper/120:30:191
1114199190,16cyclictest4593-21H212:26:331
1114199190,16cyclictest4538-21H212:26:331
1114199190,16cyclictest4536-21H212:26:331
1114199190,16cyclictest4530-21H212:26:331
11135991914,2cyclictest4536-21H212:26:330
1114699182,1cyclictest4532-21H212:26:332
1114699182,15cyclictest0-21swapper/200:05:022
11146991816,1cyclictest23441-21netstat00:15:192
11146991816,1cyclictest0-21swapper/220:22:072
11146991815,2cyclictest4532-21H212:26:332
11146991815,2cyclictest22816-21processes22:20:182
11146991814,3cyclictest4532-21H212:26:332
11146991814,3cyclictest4530-21H212:26:332
11146991814,2cyclictest4528-21H212:26:332
11146991813,2cyclictest4532-21H212:26:332
1114699181,2cyclictest4530-21H212:26:332
1114699181,2cyclictest30083-21snapd20:46:502
1114699181,16cyclictest4535-21H212:26:332
1114699180,3cyclictest17061-21tr19:20:152
1114699180,2cyclictest4536-21H212:26:332
1114699180,2cyclictest4534-21H212:26:332
1114699180,2cyclictest4530-21H212:26:332
1114699180,2cyclictest4526-21H212:26:332
1114699180,2cyclictest4526-21H212:26:332
1114699180,2cyclictest29456-21nfsd400:25:162
1114699180,1cyclictest0-21swapper/200:23:262
1114699180,17cyclictest4536-21H212:26:332
1114699180,17cyclictest2991-21grep21:45:192
1114699180,16cyclictest11495-21grep21:05:142
1114699180,15cyclictest4536-21H212:26:332
1114199182,15cyclictest25615-21expr21:30:161
1114199182,15cyclictest1759-21cat00:35:141
1114199182,15cyclictest0-21swapper/122:05:141
11141991816,1cyclictest110142chrt22:55:511
11141991815,2cyclictest9169-21cat20:00:231
11141991815,2cyclictest4536-21H212:26:331
11141991814,3cyclictest4526-21H212:26:331
11141991814,3cyclictest0-21swapper/119:41:001
11141991813,4cyclictest893-21systemd-logind19:59:081
11141991813,4cyclictest893-21systemd-logind19:59:071
1114199181,1cyclictest0-21swapper/120:12:381
1114199181,16cyclictest3272-21ls23:40:191
1114199181,16cyclictest19775-21grep22:15:171
1114199181,15cyclictest0-21swapper/123:05:151
1114199180,3cyclictest4613-21find20:50:201
1114199180,2cyclictest18490-21cat21:15:221
1113599182,15cyclictest28895-21grep22:30:210
1113599181,8cyclictest0-21swapper/023:40:200
11135991814,3cyclictest4593-21H212:26:330
11135991814,3cyclictest4581-21H212:26:330
11135991814,3cyclictest4581-21H212:26:330
1113599181,16cyclictest25341-21smartctl20:30:190
1113599180,2cyclictest4534-21H212:26:330
1113599180,2cyclictest4526-21H212:26:330
1113599180,17cyclictest4536-21H212:26:330
1113599180,16cyclictest4538-21H212:26:330
1113599180,16cyclictest4534-21H212:26:330
1113599180,16cyclictest4532-21H212:26:330
1113599180,16cyclictest4523-21H212:26:330
1113599180,15cyclictest4536-21H212:26:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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