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2026-06-17 - 09:38
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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 Wed Jun 17, 2026 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16719512270191,26sleep10-21swapper/119:06:531
16718572260219,27sleep00-21swapper/019:05:520
18063572790,4sleep10-21swapper/123:05:261
17812532720,5sleep00-21swapper/022:31:110
17510962700,1chrt1751098-21if_err_enp2s021:50:181
179699660,6rtkit-daemon1825020-21seq23:31:011
179699570,3rtkit-daemon0-21swapper/122:11:281
179699560,4rtkit-daemon0-21swapper/122:30:161
179699550,3rtkit-daemon0-21swapper/123:21:191
179699550,3rtkit-daemon0-21swapper/123:11:181
179699550,3rtkit-daemon0-21swapper/120:57:301
179699550,3rtkit-daemon0-21swapper/120:10:421
179699540,4rtkit-daemon1770132-21ssh22:15:451
179699540,3rtkit-daemon0-21swapper/122:49:001
179699540,3rtkit-daemon0-21swapper/120:20:301
179699540,3rtkit-daemon0-21swapper/119:18:041
179699530,3rtkit-daemon0-21swapper/123:17:451
179699530,3rtkit-daemon0-21swapper/121:45:391
179699530,3rtkit-daemon0-21swapper/120:19:201
179699520,3rtkit-daemon0-21swapper/123:26:491
179699520,3rtkit-daemon0-21swapper/123:00:521
179699520,3rtkit-daemon0-21swapper/122:58:031
179699520,3rtkit-daemon0-21swapper/120:42:401
179699520,3rtkit-daemon0-21swapper/120:05:481
179699520,3rtkit-daemon0-21swapper/100:00:081
179699510,4rtkit-daemon1795-21rtkit-daemon21:23:421
179699510,4rtkit-daemon1795-21rtkit-daemon21:19:221
179699510,3rtkit-daemon0-21swapper/121:01:301
179699510,3rtkit-daemon0-21swapper/120:47:291
179699510,2rtkit-daemon0-21swapper/119:46:231
179699500,3rtkit-daemon0-21swapper/122:41:101
179699500,3rtkit-daemon0-21swapper/119:52:291
179699490,3rtkit-daemon1795-21rtkit-daemon23:45:091
179699490,3rtkit-daemon1795-21rtkit-daemon00:31:221
179699480,4rtkit-daemon1795-21rtkit-daemon00:35:341
179699480,3rtkit-daemon1795-21rtkit-daemon22:05:521
179699480,3rtkit-daemon1795-21rtkit-daemon19:33:501
179699480,3rtkit-daemon0-21swapper/122:23:271
179699480,3rtkit-daemon0-21swapper/120:32:591
179699470,3rtkit-daemon0-21swapper/120:02:231
179699460,3rtkit-daemon1795-21rtkit-daemon21:07:181
179699460,3rtkit-daemon1795-21rtkit-daemon00:26:281
17061632460,1chrt1706161-21sshd20:31:100
16826102460,4sleep00-21swapper/019:30:260
179699450,1rtkit-daemon1795-21rtkit-daemon21:35:421
179699440,1rtkit-daemon1795-21rtkit-daemon19:36:531
179699420,13rtkit-daemon0-21swapper/019:40:311
179699410,3rtkit-daemon0-21swapper/123:55:410
179699410,3rtkit-daemon0-21swapper/000:25:040
16729062410,5chrt0-21swapper/019:10:090
179699400,3rtkit-daemon0-21swapper/122:28:380
179699400,3rtkit-daemon0-21swapper/121:53:420
179699400,14rtkit-daemon0-21swapper/022:02:571
179699400,12rtkit-daemon0-21swapper/021:29:081
179699380,12rtkit-daemon0-21swapper/000:05:421
179699350,3rtkit-daemon0-21swapper/122:01:050
179699340,3rtkit-daemon0-21swapper/123:20:060
179699340,3rtkit-daemon0-21swapper/122:29:331
179699340,3rtkit-daemon0-21swapper/121:49:050
179699330,3rtkit-daemon0-21swapper/123:06:200
179699330,3rtkit-daemon0-21swapper/122:47:420
179699330,3rtkit-daemon0-21swapper/122:12:080
179699330,3rtkit-daemon0-21swapper/120:38:590
179699320,4rtkit-daemon1795-21rtkit-daemon20:00:330
179699310,3rtkit-daemon0-21swapper/122:21:450
179699310,3rtkit-daemon0-21swapper/121:14:500
179699310,3rtkit-daemon0-21swapper/119:42:220
1672435993113,11cyclictest1689143-21apt-get19:50:120
167244499308,19cyclictest26-21ksoftirqd/123:55:021
179699290,3rtkit-daemon0-21swapper/119:49:170
179699290,3rtkit-daemon0-21swapper/100:09:260
1672435992912,7cyclictest13-21ksoftirqd/000:12:550
167244499280,6cyclictest0-21swapper/100:23:471
179699270,3rtkit-daemon0-21swapper/122:16:550
179699270,3rtkit-daemon0-21swapper/120:41:260
1672444992714,8cyclictest1812137-1kworker/u9:123:40:131
1672444992712,9cyclictest1825944-1kworker/u9:023:35:121
167244499270,6cyclictest0-21swapper/100:12:541
167243599271,8cyclictest1720227-21diskmemload23:35:110
167243599271,8cyclictest1720227-21diskmemload23:15:120
167243599271,7cyclictest1720227-21diskmemload21:35:250
1672435992713,8cyclictest1808939-21apt-get23:10:140
16991042260,4sleep00-21swapper/020:15:130
1672444992611,9cyclictest1733361-1kworker/u9:221:30:141
167243599268,11cyclictest1712608-21apt-get20:50:140
1672435992623,2cyclictest66950irq/132-enp2s023:03:020
1672435992623,2cyclictest66950irq/132-enp2s021:32:000
1672435992620,4cyclictest892-21thermald00:36:560
167243599261,14cyclictest13-21ksoftirqd/021:18:570
179699250,3rtkit-daemon0-21swapper/122:07:240
167243599254,3cyclictest141rcu_preempt22:55:300
1672435992522,2cyclictest66950irq/132-enp2s023:25:320
167243599252,17cyclictest1728679-21apt-get21:20:130
167243599251,7cyclictest1720227-21diskmemload23:52:050
1672435992515,8cyclictest1677191-21cron19:20:000
179699240,1rtkit-daemon1795-21rtkit-daemon00:30:020
167244499242,15cyclictest1672930-21apt-get19:10:131
1672444992421,2cyclictest1685500-1kworker/1:2H19:55:171
167244499240,7cyclictest1841307-21apt-key23:55:011
167243599248,3cyclictest141rcu_preempt22:37:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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