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2026-04-18 - 22:42
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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 Sat Apr 18, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31330852259217,28sleep00-21swapper/007:09:450
31313462255180,59sleep10-21swapper/107:05:021
179699610,4rtkit-daemon1795-21rtkit-daemon07:15:410
179699530,4rtkit-daemon1795-21rtkit-daemon12:25:190
179699520,4rtkit-daemon1795-21rtkit-daemon09:16:040
179699520,4rtkit-daemon1795-21rtkit-daemon08:45:210
31494212510,1chrt3149420-21/usr/sbin/munin07:45:200
179699510,4rtkit-daemon1795-21rtkit-daemon11:37:520
179699510,4rtkit-daemon1795-21rtkit-daemon10:34:170
179699510,4rtkit-daemon1795-21rtkit-daemon10:29:480
179699500,4rtkit-daemon1795-21rtkit-daemon09:03:501
179699500,3rtkit-daemon1795-21rtkit-daemon08:56:411
179699480,4rtkit-daemon1795-21rtkit-daemon07:35:490
179699480,3rtkit-daemon1795-21rtkit-daemon09:14:370
179699450,4rtkit-daemon0-21swapper/111:45:291
32468612440,4sleep10-21swapper/110:38:341
31671322440,1sleep13167130-21ls08:30:211
179699400,3rtkit-daemon0-21swapper/108:37:111
179699400,3rtkit-daemon0-21swapper/011:25:100
32507292380,2sleep03250735-21ssh10:44:180
179699380,3rtkit-daemon0-21swapper/111:40:031
179699380,3rtkit-daemon0-21swapper/111:40:031
179699370,5rtkit-daemon3163213-21memory08:20:171
179699370,5rtkit-daemon1795-21rtkit-daemon08:20:100
179699370,4rtkit-daemon1795-21rtkit-daemon10:00:000
179699370,3rtkit-daemon0-21swapper/010:56:250
179699370,3rtkit-daemon0-21swapper/010:04:280
179699360,3rtkit-daemon0-21swapper/111:10:281
179699360,3rtkit-daemon0-21swapper/007:29:230
179699350,5rtkit-daemon3284898-21ssh11:32:401
179699350,3rtkit-daemon1795-21rtkit-daemon08:04:260
179699350,3rtkit-daemon0-21swapper/012:36:061
179699350,3rtkit-daemon0-21swapper/011:03:320
179699350,3rtkit-daemon0-21swapper/010:05:091
179699350,3rtkit-daemon0-21swapper/007:24:080
179699340,4rtkit-daemon1795-21rtkit-daemon12:13:150
179699340,4rtkit-daemon1795-21rtkit-daemon09:27:430
179699340,3rtkit-daemon0-21swapper/011:23:171
179699330,5rtkit-daemon3304695-21ntp_states12:00:201
179699330,5rtkit-daemon3224634-21ssh10:07:300
179699330,4rtkit-daemon1795-21rtkit-daemon10:20:410
179699330,3rtkit-daemon0-21swapper/009:31:371
179699330,3rtkit-daemon0-21swapper/008:41:371
179699330,3rtkit-daemon0-21swapper/007:51:531
179699330,3rtkit-daemon0-21swapper/007:11:441
179699320,4rtkit-daemon1795-21rtkit-daemon08:12:470
179699320,4rtkit-daemon1795-21rtkit-daemon07:11:310
179699320,3rtkit-daemon1795-21rtkit-daemon09:29:471
179699320,3rtkit-daemon0-21swapper/012:26:071
179699320,3rtkit-daemon0-21swapper/010:56:371
179699320,3rtkit-daemon0-21swapper/010:53:361
179699320,3rtkit-daemon0-21swapper/009:16:181
179699310,4rtkit-daemon1795-21rtkit-daemon09:48:270
179699310,3rtkit-daemon1795-21rtkit-daemon10:47:340
179699310,3rtkit-daemon1795-21rtkit-daemon08:29:400
179699310,3rtkit-daemon0-21swapper/012:05:201
179699310,3rtkit-daemon0-21swapper/010:32:511
179699310,3rtkit-daemon0-21swapper/008:01:061
179699310,3rtkit-daemon0-21swapper/007:48:261
179699310,3rtkit-daemon0-21swapper/007:44:501
3133230993027,2cyclictest66950irq/132-enp2s009:48:531
3133230993027,2cyclictest66950irq/132-enp2s008:06:381
179699300,4rtkit-daemon1795-21rtkit-daemon11:20:420
179699300,3rtkit-daemon1795-21rtkit-daemon11:32:480
179699300,3rtkit-daemon1795-21rtkit-daemon11:15:500
179699300,3rtkit-daemon0-21swapper/111:40:170
179699300,3rtkit-daemon0-21swapper/111:40:160
179699300,3rtkit-daemon0-21swapper/011:27:011
179699300,3rtkit-daemon0-21swapper/011:00:031
179699300,3rtkit-daemon0-21swapper/010:24:091
3133230992920,7cyclictest3161023-21grep08:15:181
179699290,3rtkit-daemon0-21swapper/012:12:531
179699290,3rtkit-daemon0-21swapper/010:19:551
179699290,3rtkit-daemon0-21swapper/007:31:361
179699290,3rtkit-daemon0-21swapper/007:24:221
32029902281,14sleep03202996-21diskmemload09:36:330
3133225992812,10cyclictest3327579-1kworker/u9:212:35:140
179699280,3rtkit-daemon0-21swapper/010:45:211
179699280,3rtkit-daemon0-21swapper/007:17:481
313323099271,8cyclictest3153668-21awk07:55:221
3133225992723,3cyclictest66950irq/132-enp2s010:35:480
3133225992712,2cyclictest141rcu_preempt09:53:000
179699270,3rtkit-daemon0-21swapper/111:50:270
179699270,3rtkit-daemon0-21swapper/011:18:421
179699270,22rtkit-daemon3133220-21cyclictest09:13:591
179699270,21rtkit-daemon3133220-21cyclictest08:56:490
313322599266,5cyclictest13-21ksoftirqd/011:12:460
313323099256,13cyclictest3144538-21apt-get07:35:141
313323099253,15cyclictest3201178-21apt-get09:35:151
3133230992522,2cyclictest66950irq/132-enp2s010:26:361
3133230992521,3cyclictest66950irq/132-enp2s009:56:221
3133230992513,8cyclictest3174852-21apt-get08:50:121
3133230992512,7cyclictest66950irq/132-enp2s010:00:131
3133230992511,9cyclictest3242704-21kworker/u8:210:40:131
313322599253,15cyclictest3204586-21apt-get09:40:120
313322599251,1cyclictest141rcu_preempt11:10:010
3133225992510,5cyclictest0-21swapper/012:04:510
33188842240,1chrt3318886-21/usr/sbin/munin12:20:231
313323099240,5cyclictest0-21swapper/111:38:441
3133225992421,2cyclictest66950irq/132-enp2s012:05:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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