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2026-03-10 - 21:40
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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 Tue Mar 10, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18928182265190,59sleep00-21swapper/007:08:210
18927432261190,27sleep10-21swapper/107:07:341
20450462700,3sleep10-21swapper/111:32:231
179699590,3rtkit-daemon0-21swapper/010:24:111
179699530,4rtkit-daemon1795-21rtkit-daemon12:39:341
179699530,4rtkit-daemon1795-21rtkit-daemon11:55:581
179699510,3rtkit-daemon1795-21rtkit-daemon08:20:051
20487132500,4sleep00-21swapper/011:37:280
179699450,22rtkit-daemon608-21rpcbind07:30:381
179699430,3rtkit-daemon1795-21rtkit-daemon11:09:550
179699420,3rtkit-daemon1795-21rtkit-daemon11:11:050
20588182410,2sleep12058819-21sh11:50:581
20412882410,3sleep0161rcuc/011:26:450
179699410,4rtkit-daemon141rcu_preempt08:13:300
179699400,8rtkit-daemon2000028-21ssh10:30:171
179699380,3rtkit-daemon0-21swapper/109:30:561
179699370,5rtkit-daemon1980009-21ssh10:01:470
179699370,4rtkit-daemon2069260-21sed12:05:261
179699370,3rtkit-daemon1795-21rtkit-daemon10:10:150
179699370,3rtkit-daemon0-21swapper/111:06:321
179699360,3rtkit-daemon1795-21rtkit-daemon10:58:101
179699360,3rtkit-daemon0-21swapper/109:46:361
179699350,4rtkit-daemon1795-21rtkit-daemon11:42:241
179699350,4rtkit-daemon1795-21rtkit-daemon11:15:281
179699350,4rtkit-daemon1795-21rtkit-daemon10:40:511
179699350,4rtkit-daemon1795-21rtkit-daemon10:40:501
179699350,4rtkit-daemon1795-21rtkit-daemon10:35:370
179699350,3rtkit-daemon0-21swapper/112:04:181
179699350,3rtkit-daemon0-21swapper/111:00:041
179699350,3rtkit-daemon0-21swapper/109:32:140
179699350,3rtkit-daemon0-21swapper/108:31:541
179699350,3rtkit-daemon0-21swapper/108:10:341
1893088993429,1cyclictest0-21swapper/110:17:051
179699340,4rtkit-daemon1992619-21ssh10:20:130
179699340,4rtkit-daemon1941426-21diskmemload09:46:100
179699340,4rtkit-daemon1795-21rtkit-daemon10:02:451
179699340,3rtkit-daemon1795-21rtkit-daemon09:55:431
179699340,3rtkit-daemon0-21swapper/109:50:560
179699340,3rtkit-daemon0-21swapper/107:57:210
179699330,5rtkit-daemon2053360-21runrttasks11:44:360
179699330,3rtkit-daemon1795-21rtkit-daemon11:20:301
179699330,3rtkit-daemon0-21swapper/109:39:581
179699330,3rtkit-daemon0-21swapper/009:42:291
179699330,3rtkit-daemon0-21swapper/007:18:131
179699320,4rtkit-daemon2030585-21ssh11:11:451
179699320,3rtkit-daemon1795-21rtkit-daemon11:25:051
179699320,3rtkit-daemon0-21swapper/108:09:220
179699320,3rtkit-daemon0-21swapper/007:35:481
179699310,4rtkit-daemon1795-21rtkit-daemon08:07:101
179699310,4rtkit-daemon0-21swapper/107:11:090
179699310,4rtkit-daemon0-21swapper/107:11:080
179699310,3rtkit-daemon1795-21rtkit-daemon09:26:340
179699310,3rtkit-daemon1795-21rtkit-daemon07:56:521
179699310,3rtkit-daemon0-21swapper/112:31:170
179699310,3rtkit-daemon0-21swapper/112:01:430
179699310,3rtkit-daemon0-21swapper/111:46:250
179699310,3rtkit-daemon0-21swapper/108:32:220
179699310,3rtkit-daemon0-21swapper/108:15:290
179699310,3rtkit-daemon0-21swapper/107:19:090
179699310,3rtkit-daemon0-21swapper/009:14:381
179699310,3rtkit-daemon0-21swapper/008:46:041
1893088993024,4cyclictest26-21ksoftirqd/112:30:011
179699300,4rtkit-daemon1795-21rtkit-daemon12:38:390
179699300,4rtkit-daemon1795-21rtkit-daemon12:21:170
179699300,3rtkit-daemon1795-21rtkit-daemon07:29:581
179699300,3rtkit-daemon0-21swapper/112:10:410
179699300,3rtkit-daemon0-21swapper/111:31:040
179699300,3rtkit-daemon0-21swapper/110:16:390
179699300,3rtkit-daemon0-21swapper/109:59:460
179699300,3rtkit-daemon0-21swapper/108:49:580
179699300,3rtkit-daemon0-21swapper/108:28:020
179699300,3rtkit-daemon0-21swapper/107:28:030
179699300,3rtkit-daemon0-21swapper/010:06:301
179699300,3rtkit-daemon0-21swapper/007:50:531
179699300,3rtkit-daemon0-21swapper/007:10:481
179699300,3rtkit-daemon0-21swapper/007:10:471
179699290,3rtkit-daemon1795-21rtkit-daemon10:25:290
179699290,3rtkit-daemon0-21swapper/112:15:290
179699290,3rtkit-daemon0-21swapper/109:24:190
179699290,3rtkit-daemon0-21swapper/109:00:570
179699290,3rtkit-daemon0-21swapper/107:32:040
189308899289,4cyclictest26-21ksoftirqd/110:45:431
189308899286,5cyclictest0-21swapper/110:12:371
179699280,3rtkit-daemon0-21swapper/112:06:000
179699280,3rtkit-daemon0-21swapper/111:55:300
179699280,3rtkit-daemon0-21swapper/111:52:270
179699280,3rtkit-daemon0-21swapper/111:21:450
179699280,3rtkit-daemon0-21swapper/111:17:480
179699280,3rtkit-daemon0-21swapper/109:41:350
179699280,3rtkit-daemon0-21swapper/109:09:180
179699280,3rtkit-daemon0-21swapper/108:43:060
179699280,3rtkit-daemon0-21swapper/108:39:200
179699280,3rtkit-daemon0-21swapper/107:48:400
179699280,3rtkit-daemon0-21swapper/009:27:221
1893088992723,3cyclictest66950irq/132-enp2s012:20:031
1893088992714,7cyclictest66950irq/132-enp2s011:35:131
1893088992710,2cyclictest141rcu_preempt09:16:161
189308399260,6cyclictest0-21swapper/010:33:130
189308899251,22cyclictest1936002-21grep08:55:171
189308399255,8cyclictest284-20systemd-journal09:00:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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