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2026-01-11 - 12:14
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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 rackcslot4.osadl.org (updated Sun Jan 11, 2026 00:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29577972265183,28sleep00-21swapper/019:05:520
29578342259176,19sleep10-21swapper/119:06:171
31142002720,4chrt0-21swapper/123:35:141
31540692670,3chrt0-21swapper/100:30:121
179699640,4rtkit-daemon1795-21rtkit-daemon22:50:230
179699590,4rtkit-daemon1795-21rtkit-daemon21:48:421
179699570,3rtkit-daemon0-21swapper/022:47:101
179699560,4rtkit-daemon1795-21rtkit-daemon22:15:541
179699520,3rtkit-daemon1795-21rtkit-daemon23:59:401
29835502510,1chrt2982460-21/usr/sbin/munin20:10:261
179699490,4rtkit-daemon1795-21rtkit-daemon23:37:120
179699490,4rtkit-daemon1795-21rtkit-daemon20:29:451
179699490,3rtkit-daemon1795-21rtkit-daemon19:27:141
179699480,3rtkit-daemon1795-21rtkit-daemon22:49:570
30008682470,4sleep10-21swapper/120:55:211
179699460,3rtkit-daemon1795-21rtkit-daemon22:55:060
179699460,3rtkit-daemon1795-21rtkit-daemon19:52:410
179699450,21rtkit-daemon2958279-21cyclictest00:23:311
179699440,2rtkit-daemon1795-21rtkit-daemon00:39:540
31605972430,5sleep10-21swapper/100:39:071
31420042430,4sleep10-21swapper/100:14:151
179699410,5rtkit-daemon1795-21rtkit-daemon23:40:151
179699380,7rtkit-daemon3041751-21grep21:55:250
179699380,3rtkit-daemon0-21swapper/121:10:111
179699370,3rtkit-daemon0-21swapper/123:28:521
179699360,5rtkit-daemon3081604-21if_enp2s022:50:171
179699360,5rtkit-daemon1795-21rtkit-daemon19:50:031
179699360,4rtkit-daemon1795-21rtkit-daemon22:14:501
179699360,3rtkit-daemon0-21swapper/121:44:291
179699360,3rtkit-daemon0-21swapper/120:44:431
179699350,5rtkit-daemon3093450-21ssh23:05:311
179699350,3rtkit-daemon0-21swapper/123:21:161
179699350,3rtkit-daemon0-21swapper/122:33:421
2958290993411,2cyclictest141rcu_preempt21:00:011
179699340,3rtkit-daemon0-21swapper/122:31:250
179699340,3rtkit-daemon0-21swapper/122:20:250
179699340,3rtkit-daemon0-21swapper/121:45:110
179699340,3rtkit-daemon0-21swapper/119:48:521
179699340,3rtkit-daemon0-21swapper/119:36:331
179699340,3rtkit-daemon0-21swapper/022:55:171
179699330,5rtkit-daemon3006251-21diskmemload22:01:090
179699330,4rtkit-daemon1795-21rtkit-daemon22:11:520
179699330,3rtkit-daemon1795-21rtkit-daemon21:19:451
179699330,3rtkit-daemon0-21swapper/123:30:461
179699330,3rtkit-daemon0-21swapper/119:16:181
179699330,3rtkit-daemon0-21swapper/020:02:161
179699330,3rtkit-daemon0-21swapper/019:56:371
295829099323,4cyclictest26-21ksoftirqd/123:20:011
179699320,4rtkit-daemon1795-21rtkit-daemon23:15:330
179699320,4rtkit-daemon1795-21rtkit-daemon22:40:130
179699320,3rtkit-daemon0-21swapper/123:46:050
179699320,3rtkit-daemon0-21swapper/122:25:030
179699320,3rtkit-daemon0-21swapper/119:30:090
179699320,3rtkit-daemon0-21swapper/119:17:000
2958290993116,7cyclictest3095623-21apt-get23:10:121
179699310,6rtkit-daemon2960367-21munin-node21:36:330
179699310,4rtkit-daemon1795-21rtkit-daemon23:14:070
179699310,4rtkit-daemon1795-21rtkit-daemon21:51:280
179699310,4rtkit-daemon1795-21rtkit-daemon21:31:240
179699310,4rtkit-daemon1795-21rtkit-daemon21:10:550
179699310,3rtkit-daemon1795-21rtkit-daemon23:54:031
179699310,3rtkit-daemon0-21swapper/123:41:550
179699310,3rtkit-daemon0-21swapper/123:31:000
179699310,3rtkit-daemon0-21swapper/120:59:050
179699310,3rtkit-daemon0-21swapper/100:30:130
179699310,3rtkit-daemon0-21swapper/022:08:371
2958290993027,2cyclictest66950irq/132-enp2s021:36:471
179699300,5rtkit-daemon761-21avahi-daemon20:38:350
179699300,5rtkit-daemon2960367-21munin-node20:02:300
179699300,3rtkit-daemon1795-21rtkit-daemon21:54:051
179699300,3rtkit-daemon1795-21rtkit-daemon00:08:311
179699300,3rtkit-daemon0-21swapper/120:20:020
179699300,3rtkit-daemon0-21swapper/119:37:570
295829099293,3cyclictest141rcu_preempt21:30:011
2958290992926,2cyclictest66950irq/132-enp2s019:34:361
179699290,3rtkit-daemon0-21swapper/123:55:420
179699290,3rtkit-daemon0-21swapper/123:51:360
179699290,3rtkit-daemon0-21swapper/122:17:220
179699290,3rtkit-daemon0-21swapper/121:03:160
179699290,3rtkit-daemon0-21swapper/120:43:490
179699290,3rtkit-daemon0-21swapper/120:27:340
179699290,3rtkit-daemon0-21swapper/119:49:140
179699290,3rtkit-daemon0-21swapper/119:43:450
179699290,3rtkit-daemon0-21swapper/119:21:070
179699290,3rtkit-daemon0-21swapper/100:26:410
179699290,3rtkit-daemon0-21swapper/100:21:000
179699290,3rtkit-daemon0-21swapper/100:05:200
295829099285,5cyclictest26-21ksoftirqd/100:00:131
2958290992825,2cyclictest66950irq/132-enp2s022:44:521
2958290992824,3cyclictest66950irq/132-enp2s019:40:251
2958290992814,2cyclictest141rcu_preempt21:05:131
179699280,3rtkit-daemon1795-21rtkit-daemon00:04:030
179699280,3rtkit-daemon0-21swapper/122:35:140
179699280,3rtkit-daemon0-21swapper/121:21:260
179699280,3rtkit-daemon0-21swapper/120:54:200
179699280,3rtkit-daemon0-21swapper/120:31:100
179699280,3rtkit-daemon0-21swapper/120:17:290
179699280,3rtkit-daemon0-21swapper/100:12:310
295829099279,5cyclictest26-21ksoftirqd/100:18:291
295829099275,4cyclictest26-21ksoftirqd/122:38:481
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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