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2026-04-22 - 04:20
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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 Apr 22, 2026 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
205620923760,29sleep00-21swapper/019:05:220
20574242280239,27sleep10-21swapper/119:09:241
217819821500,1sleep00-21swapper/022:51:190
21245732630,8sleep1261ksoftirqd/121:35:231
179699610,3rtkit-daemon1795-21rtkit-daemon19:40:161
179699610,3rtkit-daemon1795-21rtkit-daemon19:40:151
179699600,8rtkit-daemon0-21swapper/020:06:540
21091492590,4sleep10-21swapper/121:14:501
179699570,4rtkit-daemon1795-21rtkit-daemon23:31:551
179699570,4rtkit-daemon1795-21rtkit-daemon20:25:521
179699570,4rtkit-daemon1795-21rtkit-daemon20:18:501
179699560,5rtkit-daemon1795-21rtkit-daemon00:35:090
179699550,3rtkit-daemon1795-21rtkit-daemon23:40:171
179699530,4rtkit-daemon1795-21rtkit-daemon23:51:230
179699520,4rtkit-daemon1795-21rtkit-daemon23:07:561
179699520,4rtkit-daemon1795-21rtkit-daemon22:26:350
179699520,3rtkit-daemon0-21swapper/119:24:161
179699510,3rtkit-daemon0-21swapper/120:13:211
179699470,4rtkit-daemon1795-21rtkit-daemon20:42:351
179699470,4rtkit-daemon1795-21rtkit-daemon20:30:391
179699470,4rtkit-daemon1795-21rtkit-daemon20:20:341
22410242460,4sleep10-21swapper/100:25:151
21459522460,4sleep00-21swapper/022:05:440
179699450,3rtkit-daemon1795-21rtkit-daemon21:01:531
179699450,3rtkit-daemon0-21swapper/123:04:391
179699440,3rtkit-daemon0-21swapper/120:39:491
179699430,3rtkit-daemon0-21swapper/000:32:211
179699410,3rtkit-daemon0-21swapper/022:26:411
179699410,3rtkit-daemon0-21swapper/019:25:271
179699400,5rtkit-daemon2103805-21apt-get21:05:141
179699400,3rtkit-daemon1795-21rtkit-daemon22:51:561
179699400,3rtkit-daemon0-21swapper/122:11:231
179699400,3rtkit-daemon0-21swapper/022:39:411
179699390,4rtkit-daemon1795-21rtkit-daemon19:33:171
179699390,3rtkit-daemon0-21swapper/023:23:451
179699390,3rtkit-daemon0-21swapper/023:18:311
179699390,3rtkit-daemon0-21swapper/022:34:301
179699390,3rtkit-daemon0-21swapper/000:05:411
179699380,3rtkit-daemon0-21swapper/121:09:210
179699380,3rtkit-daemon0-21swapper/120:44:400
179699380,3rtkit-daemon0-21swapper/019:37:421
179699370,4rtkit-daemon1795-21rtkit-daemon22:36:480
179699370,3rtkit-daemon0-21swapper/022:47:571
179699370,3rtkit-daemon0-21swapper/021:52:051
179699370,3rtkit-daemon0-21swapper/020:07:591
179699370,3rtkit-daemon0-21swapper/000:38:251
179699360,4rtkit-daemon1795-21rtkit-daemon22:58:260
179699360,4rtkit-daemon1795-21rtkit-daemon22:46:020
179699360,4rtkit-daemon1795-21rtkit-daemon22:15:520
179699360,4rtkit-daemon1795-21rtkit-daemon19:55:490
179699360,3rtkit-daemon0-21swapper/121:57:280
179699360,3rtkit-daemon0-21swapper/022:03:561
179699350,4rtkit-daemon1795-21rtkit-daemon22:14:410
179699350,4rtkit-daemon1795-21rtkit-daemon21:33:550
179699350,4rtkit-daemon1795-21rtkit-daemon20:57:180
179699340,4rtkit-daemon619062-1kworker/u9:221:18:511
179699340,4rtkit-daemon1795-21rtkit-daemon00:19:470
179699340,3rtkit-daemon0-21swapper/120:48:360
179699340,3rtkit-daemon0-21swapper/120:17:330
22083862330,4sleep0161rcuc/023:35:010
2057605993311,12cyclictest26-21ksoftirqd/120:54:241
179699330,4rtkit-daemon1795-21rtkit-daemon22:56:311
179699330,4rtkit-daemon1795-21rtkit-daemon19:29:010
179699330,3rtkit-daemon0-21swapper/120:20:060
179699330,1rtkit-daemon1795-21rtkit-daemon23:54:141
179699330,1rtkit-daemon1795-21rtkit-daemon00:13:421
179699320,4rtkit-daemon1795-21rtkit-daemon23:00:280
179699320,1rtkit-daemon1795-21rtkit-daemon23:35:401
179699320,1rtkit-daemon1795-21rtkit-daemon00:02:001
179699310,3rtkit-daemon1795-21rtkit-daemon00:20:570
179699310,1rtkit-daemon1795-21rtkit-daemon23:56:001
179699310,1rtkit-daemon1795-21rtkit-daemon23:29:261
2057605993015,4cyclictest2151577-21sshd22:15:161
179699300,4rtkit-daemon1795-21rtkit-daemon19:21:440
179699300,1rtkit-daemon1795-21rtkit-daemon23:13:211
2057600992914,9cyclictest2240827-21apt-get00:25:140
2057600992910,3cyclictest13-21ksoftirqd/021:14:460
179699290,4rtkit-daemon1795-21rtkit-daemon23:57:440
179699290,4rtkit-daemon1795-21rtkit-daemon19:42:110
179699290,4rtkit-daemon1795-21rtkit-daemon19:42:100
179699290,1rtkit-daemon1795-21rtkit-daemon23:18:370
179699290,1rtkit-daemon1795-21rtkit-daemon21:21:571
21571802280,22sleep12105570-21diskmemload22:22:521
2057600992821,5cyclictest13-21ksoftirqd/021:20:000
2057600992820,6cyclictest2229758-21/usr/sbin/munin00:05:190
205760599271,8cyclictest2105570-21diskmemload23:49:391
205760599271,12cyclictest2105570-21diskmemload00:15:401
179699270,4rtkit-daemon1795-21rtkit-daemon23:10:200
205760599263,8cyclictest26-21ksoftirqd/119:57:301
205760599261,8cyclictest2105570-21diskmemload21:59:111
205760599261,6cyclictest2105570-21diskmemload21:31:081
205760599261,12cyclictest2105570-21diskmemload22:44:121
2057600992623,2cyclictest66950irq/132-enp2s021:44:170
205760099262,16cyclictest2232034-21apt-get00:10:130
2057600992611,9cyclictest2215408-21apt-get23:45:140
205760099260,6cyclictest0-21swapper/020:54:250
179699260,1rtkit-daemon1795-21rtkit-daemon22:04:210
179699260,1rtkit-daemon1795-21rtkit-daemon00:32:090
205760599257,9cyclictest0-21swapper/121:49:181
205760599254,3cyclictest141rcu_preempt21:40:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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