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2026-03-28 - 08:08
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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 all highest latencies:
System rackcslot4.osadl.org (updated Sat Mar 28, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
192962260188,28sleep10-21swapper/119:09:211
174532254209,30sleep00-21swapper/019:05:020
179699580,5rtkit-daemon186678-21ssh23:56:230
179699560,3rtkit-daemon1795-21rtkit-daemon21:15:330
179699560,3rtkit-daemon0-21swapper/023:52:180
179699560,3rtkit-daemon0-21swapper/023:12:220
179699540,3rtkit-daemon0-21swapper/022:00:020
179699540,3rtkit-daemon0-21swapper/021:43:120
179699540,3rtkit-daemon0-21swapper/019:42:480
179699540,3rtkit-daemon0-21swapper/000:38:230
179699530,4rtkit-daemon194172-21ssh00:07:160
179699530,3rtkit-daemon1795-21rtkit-daemon23:31:450
179699530,3rtkit-daemon1795-21rtkit-daemon22:51:420
179699530,3rtkit-daemon0-21swapper/019:27:130
179699520,4rtkit-daemon1795-21rtkit-daemon23:19:000
179699520,3rtkit-daemon0-21swapper/019:51:140
179699520,3rtkit-daemon0-21swapper/000:18:450
179699510,3rtkit-daemon0-21swapper/022:23:400
179699510,23rtkit-daemon19521-21cyclictest00:30:130
179699510,21rtkit-daemon19521-21cyclictest22:42:360
179699500,4rtkit-daemon1795-21rtkit-daemon23:37:090
179699500,4rtkit-daemon1795-21rtkit-daemon22:48:540
179699500,3rtkit-daemon1795-21rtkit-daemon22:56:540
179699500,3rtkit-daemon1795-21rtkit-daemon20:14:130
179699500,3rtkit-daemon1795-21rtkit-daemon00:03:551
179699500,3rtkit-daemon0-21swapper/022:09:350
179699490,4rtkit-daemon1795-21rtkit-daemon23:25:520
179699490,3rtkit-daemon1795-21rtkit-daemon21:02:050
179699490,3rtkit-daemon0-21swapper/000:25:390
179699480,6rtkit-daemon192100-21apt-get00:05:131
179699480,4rtkit-daemon1795-21rtkit-daemon20:40:430
179699480,4rtkit-daemon1795-21rtkit-daemon20:38:550
179699480,4rtkit-daemon1795-21rtkit-daemon19:32:040
179699480,3rtkit-daemon1795-21rtkit-daemon20:30:170
179699480,3rtkit-daemon0-21swapper/121:44:331
179699480,3rtkit-daemon0-21swapper/020:19:080
179699480,19rtkit-daemon1795-21rtkit-daemon23:00:140
179699470,3rtkit-daemon1795-21rtkit-daemon23:44:420
179699470,1rtkit-daemon1795-21rtkit-daemon21:47:410
179699460,3rtkit-daemon1795-21rtkit-daemon21:08:350
179699460,3rtkit-daemon1795-21rtkit-daemon20:03:180
179699460,1rtkit-daemon1795-21rtkit-daemon21:28:290
179699460,17rtkit-daemon1795-21rtkit-daemon23:08:530
179699450,4rtkit-daemon1795-21rtkit-daemon20:27:280
179699450,3rtkit-daemon1795-21rtkit-daemon21:23:150
179699450,3rtkit-daemon0-21swapper/020:21:590
179699450,18rtkit-daemon1795-21rtkit-daemon19:24:510
179699450,17rtkit-daemon1795-21rtkit-daemon19:37:410
179699440,19rtkit-daemon19521-21cyclictest19:16:300
179699440,15rtkit-daemon1795-21rtkit-daemon22:38:400
179699420,3rtkit-daemon0-21swapper/121:46:131
179699420,3rtkit-daemon0-21swapper/120:06:491
179699420,3rtkit-daemon0-21swapper/019:11:470
179699420,15rtkit-daemon99513-21sh21:52:330
179699410,3rtkit-daemon0-21swapper/000:11:290
179699410,15rtkit-daemon0-21swapper/100:03:320
179699410,14rtkit-daemon0-21swapper/123:45:150
179699410,11rtkit-daemon0-21swapper/120:51:200
179699400,4rtkit-daemon128464-21ssh22:34:550
179699400,4rtkit-daemon128464-21ssh22:34:550
179699400,3rtkit-daemon0-21swapper/000:17:041
179699390,3rtkit-daemon0-21swapper/019:43:081
1952899380,36cyclictest0-21swapper/100:10:151
179699380,3rtkit-daemon0-21swapper/019:45:220
179699380,3rtkit-daemon0-21swapper/019:16:091
1952899374,5cyclictest26-21ksoftirqd/100:00:001
179699370,4rtkit-daemon102996-21ssh21:57:550
179699370,14rtkit-daemon0-21swapper/123:24:250
179699360,3rtkit-daemon0-21swapper/022:29:260
179699360,3rtkit-daemon0-21swapper/021:38:520
179699350,4rtkit-daemon1795-21rtkit-daemon22:15:180
179699340,4rtkit-daemon1795-21rtkit-daemon22:12:510
179699340,3rtkit-daemon0-21swapper/022:21:541
19528993330,2cyclictest68213-1kworker/1:2H21:10:131
1952899331,6cyclictest26-21ksoftirqd/100:39:591
1952899330,3cyclictest26-21ksoftirqd/122:30:001
179699330,3rtkit-daemon0-21swapper/022:42:431
179699320,3rtkit-daemon0-21swapper/019:30:151
1952899317,2cyclictest141rcu_preempt22:40:001
1952899315,7cyclictest26-21ksoftirqd/120:10:121
179699310,3rtkit-daemon0-21swapper/022:31:501
179699310,3rtkit-daemon0-21swapper/022:31:501
179699310,3rtkit-daemon0-21swapper/021:35:181
1952899306,7cyclictest26-21ksoftirqd/122:50:011
19528993016,4cyclictest26-21ksoftirqd/123:10:011
1952899300,3cyclictest75766-21cat21:20:001
1952899282,3cyclictest141rcu_preempt21:25:001
1952899282,2cyclictest141rcu_preempt21:30:011
19528992814,4cyclictest26-21ksoftirqd/120:40:011
1952899281,3cyclictest26-21ksoftirqd/123:35:001
19528992812,5cyclictest26-21ksoftirqd/123:50:241
179699280,4rtkit-daemon1795-21rtkit-daemon00:30:561
179699280,3rtkit-daemon0-21swapper/121:11:220
179699280,3rtkit-daemon0-21swapper/019:29:041
1952899278,6cyclictest26-21ksoftirqd/121:30:131
1952899277,9cyclictest26-21ksoftirqd/123:29:141
1952899277,2cyclictest141rcu_preempt22:10:171
1952899276,8cyclictest65779-21apt-get21:05:021
1952899276,2cyclictest141rcu_preempt20:20:001
1952899275,12cyclictest26-21ksoftirqd/123:10:141
19528992713,4cyclictest26-21ksoftirqd/123:50:001
19528992712,4cyclictest26-21ksoftirqd/123:18:341
19528992711,2cyclictest141rcu_preempt19:10:031
1952899270,11cyclictest68151-21diskmemload22:15:181
1952899268,4cyclictest26-21ksoftirqd/123:36:231
1952899266,6cyclictest26-21ksoftirqd/122:50:151
19528992613,4cyclictest26-21ksoftirqd/121:55:171
1952899260,6cyclictest0-21swapper/122:57:241
1952899260,3cyclictest149426-21ssh23:05:001
1952899258,6cyclictest26-21ksoftirqd/122:00:211
1952899257,6cyclictest26-21ksoftirqd/123:43:181
1952899256,8cyclictest66001-21latency_hist21:05:011
19528992510,4cyclictest141rcu_preempt00:25:141
1952899250,6cyclictest0-21swapper/119:50:001
1952699258,3cyclictest141rcu_preempt19:55:140
1952699253,6cyclictest13-21ksoftirqd/000:20:140
179699250,3rtkit-daemon0-21swapper/120:09:460
1952899249,3cyclictest593662unixbench_multi20:45:261
1952899247,4cyclictest26-21ksoftirqd/120:55:261
1952899245,6cyclictest26-21ksoftirqd/122:09:501
1952899245,6cyclictest26-21ksoftirqd/120:20:131
1952899243,2cyclictest141rcu_preempt20:55:001
19528992411,4cyclictest26-21ksoftirqd/121:53:401
1952899240,6cyclictest0-21swapper/119:39:151
1952699248,2cyclictest141rcu_preempt21:31:060
1952899232,1cyclictest141rcu_preempt19:55:011
1952899232,14cyclictest24526-21apt-get19:20:151
19528992310,8cyclictest66950irq/132-enp2s023:20:121
19528992310,3cyclictest26-21ksoftirqd/100:20:101
1952899230,6cyclictest0-21swapper/120:43:341
1952899230,6cyclictest0-21swapper/120:26:281
1952899223,10cyclictest40167-21apt-get20:00:111
1952899222,6cyclictest26-21ksoftirqd/120:00:001
1952899211,2cyclictest141rcu_preempt20:30:111
1952699212,13cyclictest58171-21apt-get20:45:160
1952699200,9cyclictest13-21ksoftirqd/020:55:210
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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