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2025-12-27 - 00:45
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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 Fri Dec 26, 2025 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17281902273195,28sleep10-21swapper/107:05:501
17282982255187,53sleep00-21swapper/007:06:590
179699590,6rtkit-daemon0-21swapper/109:32:521
179699590,4rtkit-daemon1795-21rtkit-daemon11:26:270
179699580,4rtkit-daemon1795-21rtkit-daemon07:24:250
179699560,4rtkit-daemon1795-21rtkit-daemon10:34:420
18466282550,10sleep126-21ksoftirqd/110:37:441
179699550,4rtkit-daemon1795-21rtkit-daemon09:02:400
179699550,3rtkit-daemon1795-21rtkit-daemon09:19:450
179699540,4rtkit-daemon1795-21rtkit-daemon10:40:470
179699530,6rtkit-daemon1795-21rtkit-daemon12:39:231
179699530,4rtkit-daemon1795-21rtkit-daemon07:47:310
179699520,4rtkit-daemon1795-21rtkit-daemon08:48:030
179699510,4rtkit-daemon1795-21rtkit-daemon11:52:111
179699510,3rtkit-daemon1795-21rtkit-daemon10:18:120
18511842490,4sleep10-21swapper/110:44:231
179699490,4rtkit-daemon1795-21rtkit-daemon12:22:531
179699490,4rtkit-daemon1795-21rtkit-daemon07:51:240
179699480,4rtkit-daemon1795-21rtkit-daemon12:29:571
179699470,3rtkit-daemon0-21swapper/007:10:120
179699460,3rtkit-daemon1795-21rtkit-daemon12:06:010
179699460,3rtkit-daemon1795-21rtkit-daemon07:29:180
17582602450,5sleep01758259-21gltestperf08:20:180
179699430,3rtkit-daemon0-21swapper/111:11:550
179699430,3rtkit-daemon0-21swapper/109:30:400
179699420,3rtkit-daemon0-21swapper/010:25:260
179699420,3rtkit-daemon0-21swapper/008:58:010
179699410,3rtkit-daemon0-21swapper/109:36:090
179699410,3rtkit-daemon0-21swapper/108:15:330
179699410,3rtkit-daemon0-21swapper/012:15:380
179699400,3rtkit-daemon0-21swapper/112:34:250
179699400,3rtkit-daemon0-21swapper/112:21:450
179699400,3rtkit-daemon0-21swapper/111:04:100
179699400,3rtkit-daemon0-21swapper/110:55:300
179699400,3rtkit-daemon0-21swapper/109:50:470
179699390,4rtkit-daemon1823928-21ssh10:09:120
179699390,3rtkit-daemon1795-21rtkit-daemon08:51:550
179699390,3rtkit-daemon0-21swapper/011:36:470
179699390,3rtkit-daemon0-21swapper/011:32:300
172867599390,26cyclictest1761561-21python308:30:021
179699380,3rtkit-daemon1795-21rtkit-daemon11:16:200
179699380,3rtkit-daemon1795-21rtkit-daemon07:30:500
179699380,3rtkit-daemon0-21swapper/108:11:040
179699380,3rtkit-daemon0-21swapper/007:41:540
179699370,4rtkit-daemon1795-21rtkit-daemon10:51:331
179699370,3rtkit-daemon0-21swapper/109:55:270
179699370,3rtkit-daemon0-21swapper/108:27:160
179699360,3rtkit-daemon0-21swapper/110:51:570
179699350,3rtkit-daemon0-21swapper/108:34:500
179699350,3rtkit-daemon0-21swapper/007:47:021
179699350,3rtkit-daemon0-21swapper/007:24:331
179699340,4rtkit-daemon1795-21rtkit-daemon09:40:391
179699340,3rtkit-daemon1795-21rtkit-daemon11:41:321
179699340,3rtkit-daemon0-21swapper/008:52:241
179699330,4rtkit-daemon1795-21rtkit-daemon07:59:101
179699330,3rtkit-daemon1795-21rtkit-daemon12:00:251
179699330,3rtkit-daemon0-21swapper/008:44:251
179699330,3rtkit-daemon0-21swapper/007:28:201
179699330,1rtkit-daemon1795-21rtkit-daemon09:28:020
179699330,1rtkit-daemon1795-21rtkit-daemon09:05:250
179699320,1rtkit-daemon1795-21rtkit-daemon10:11:310
179699320,1rtkit-daemon1795-21rtkit-daemon09:13:170
179699320,1rtkit-daemon1795-21rtkit-daemon08:44:520
179699310,3rtkit-daemon1795-21rtkit-daemon08:32:291
179699310,1rtkit-daemon1795-21rtkit-daemon10:45:060
179699310,1rtkit-daemon1795-21rtkit-daemon10:04:020
179699310,1rtkit-daemon1795-21rtkit-daemon07:38:340
179699300,4rtkit-daemon1795-21rtkit-daemon11:38:001
179699300,4rtkit-daemon1795-21rtkit-daemon10:04:591
1728675993025,3cyclictest1825125-21expr10:10:151
179699290,4rtkit-daemon1795-21rtkit-daemon09:09:171
179699290,1rtkit-daemon1795-21rtkit-daemon10:35:530
172867599291,23cyclictest1757832-21apt-get08:20:141
179699280,4rtkit-daemon1795-21rtkit-daemon07:53:511
179699280,3rtkit-daemon1795-21rtkit-daemon11:40:210
1728675992811,15cyclictest261ksoftirqd/109:35:241
172866799288,10cyclictest0-21swapper/011:56:260
172866799287,10cyclictest0-21swapper/010:21:480
172866799284,9cyclictest13-21ksoftirqd/012:36:250
179699270,1rtkit-daemon1795-21rtkit-daemon11:11:421
1728675992723,3cyclictest66950irq/132-enp2s010:19:461
172867599270,9cyclictest0-21swapper/112:19:441
172866799277,3cyclictest141rcu_preempt11:45:110
172866799276,7cyclictest1748611-21systemctl07:55:230
1728667992719,6cyclictest1765289-21grep08:35:250
1728667992714,7cyclictest1731362-21apt-get07:15:140
1728667992714,10cyclictest1909657-21apt-get12:00:100
172866799270,5cyclictest1838410-1kworker/u9:012:10:120
1728675992622,2cyclictest66950irq/132-enp2s010:47:451
1728675992615,9cyclictest1866000-21sh11:02:161
1728675992614,7cyclictest1739703-40apt-check07:35:231
1728675992612,12cyclictest26-21ksoftirqd/110:55:221
172867599261,10cyclictest0-21swapper/111:20:521
172867599260,11cyclictest1886750-21grep11:30:121
172866799268,8cyclictest0-21swapper/009:42:130
172866799267,9cyclictest0-21swapper/011:08:090
18090332250,5sleep10-21swapper/109:49:561
172867599259,12cyclictest1933680-21apt-get12:30:151
172866799250,10cyclictest1930195-21ps12:25:250
172867599249,9cyclictest1832590-21apt-get10:20:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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