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2026-05-24 - 07:54
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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 Sun May 24, 2026 00:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25083662253212,27sleep10-21swapper/119:08:391
25084492252179,58sleep00-21swapper/019:09:320
25354312780,9chrt13-21ksoftirqd/020:15:190
179699660,7rtkit-daemon1795-21rtkit-daemon23:45:140
179699600,6rtkit-daemon2683543-21munin-run00:00:001
179699600,6rtkit-daemon2658387-21perl23:25:161
179699600,6rtkit-daemon2637200-21find22:55:241
179699560,3rtkit-daemon0-21swapper/120:36:171
26795782550,1sleep10-21swapper/123:54:151
179699550,3rtkit-daemon0-21swapper/122:18:311
179699550,3rtkit-daemon0-21swapper/120:49:321
179699550,3rtkit-daemon0-21swapper/119:27:261
25969722540,12sleep00-21swapper/022:02:250
179699540,3rtkit-daemon0-21swapper/123:35:171
179699540,3rtkit-daemon0-21swapper/123:32:461
179699540,3rtkit-daemon0-21swapper/122:45:381
179699540,3rtkit-daemon0-21swapper/122:41:571
179699530,3rtkit-daemon0-21swapper/123:11:301
179699530,3rtkit-daemon0-21swapper/122:03:471
179699530,3rtkit-daemon0-21swapper/121:57:561
179699530,3rtkit-daemon0-21swapper/120:40:391
179699530,3rtkit-daemon0-21swapper/119:57:491
179699530,3rtkit-daemon0-21swapper/119:53:571
179699530,3rtkit-daemon0-21swapper/119:49:021
179699530,3rtkit-daemon0-21swapper/100:23:011
179699530,23rtkit-daemon2508583-21cyclictest00:00:531
179699520,4rtkit-daemon1795-21rtkit-daemon21:40:031
179699520,4rtkit-daemon1795-21rtkit-daemon19:14:061
179699520,4rtkit-daemon1795-21rtkit-daemon00:17:431
179699520,4rtkit-daemon1795-21rtkit-daemon00:17:431
179699520,4rtkit-daemon0-21swapper/123:06:491
179699520,3rtkit-daemon0-21swapper/123:40:461
179699520,3rtkit-daemon0-21swapper/123:17:131
179699520,3rtkit-daemon0-21swapper/122:35:081
179699520,3rtkit-daemon0-21swapper/121:53:091
179699520,3rtkit-daemon0-21swapper/119:34:361
179699520,22rtkit-daemon2508583-21cyclictest22:34:411
179699520,1rtkit-daemon1795-21rtkit-daemon21:32:271
179699510,3rtkit-daemon0-21swapper/122:52:161
179699510,3rtkit-daemon0-21swapper/100:28:551
179699500,4rtkit-daemon1795-21rtkit-daemon21:45:241
179699500,3rtkit-daemon1795-21rtkit-daemon22:10:121
179699500,3rtkit-daemon0-21swapper/123:48:061
179699500,3rtkit-daemon0-21swapper/122:07:461
179699500,3rtkit-daemon0-21swapper/121:18:161
179699500,3rtkit-daemon0-21swapper/120:53:231
179699490,4rtkit-daemon1795-21rtkit-daemon21:28:561
179699490,4rtkit-daemon1795-21rtkit-daemon00:34:341
179699490,3rtkit-daemon0-21swapper/121:24:411
179699470,2rtkit-daemon1795-21rtkit-daemon22:28:480
179699470,20rtkit-daemon2508583-21cyclictest19:42:261
179699460,3rtkit-daemon1795-21rtkit-daemon20:30:391
179699460,20rtkit-daemon2508583-21cyclictest20:27:001
179699460,18rtkit-daemon2508583-21cyclictest21:11:411
179699450,4rtkit-daemon1795-21rtkit-daemon00:14:521
179699440,1rtkit-daemon1795-21rtkit-daemon22:24:251
179699430,1rtkit-daemon1795-21rtkit-daemon21:38:181
179699430,1rtkit-daemon1795-21rtkit-daemon21:38:181
179699430,1rtkit-daemon1795-21rtkit-daemon20:02:391
179699430,1rtkit-daemon1795-21rtkit-daemon19:16:001
179699420,1rtkit-daemon1795-21rtkit-daemon22:26:471
179699420,1rtkit-daemon1795-21rtkit-daemon20:23:551
179699420,1rtkit-daemon1795-21rtkit-daemon20:17:511
179699420,1rtkit-daemon1795-21rtkit-daemon20:10:041
179699410,3rtkit-daemon0-21swapper/022:30:280
179699410,1rtkit-daemon1795-21rtkit-daemon00:36:271
179699390,3rtkit-daemon0-21swapper/123:04:161
179699390,3rtkit-daemon0-21swapper/120:10:450
179699380,4rtkit-daemon0-21swapper/122:43:120
179699380,3rtkit-daemon0-21swapper/123:41:000
179699380,3rtkit-daemon0-21swapper/119:34:560
179699380,12rtkit-daemon0-21swapper/020:06:181
179699370,3rtkit-daemon0-21swapper/123:22:110
179699370,3rtkit-daemon0-21swapper/122:36:550
179699370,3rtkit-daemon0-21swapper/121:19:170
179699370,3rtkit-daemon0-21swapper/120:00:370
179699360,3rtkit-daemon0-21swapper/119:42:560
179699350,4rtkit-daemon1795-21rtkit-daemon21:10:011
2508585993428,4cyclictest2677849-1kworker/0:0H00:10:270
179699330,4rtkit-daemon1795-21rtkit-daemon19:23:021
179699320,3rtkit-daemon0-21swapper/121:25:360
179699320,3rtkit-daemon0-21swapper/119:54:170
179699310,3rtkit-daemon1795-21rtkit-daemon19:35:021
2508585993012,7cyclictest13-21ksoftirqd/023:13:460
250858599291,14cyclictest2556461-21diskmemload23:03:550
179699290,3rtkit-daemon0-21swapper/123:16:480
2508585992812,11cyclictest2630722-1kworker/u9:022:50:130
250858599273,7cyclictest141rcu_preempt21:55:120
250858599271,7cyclictest2572213-21apt-get21:30:110
250858599271,14cyclictest2556461-21diskmemload23:50:070
250858599270,6cyclictest0-21swapper/000:30:170
250858599270,6cyclictest0-21swapper/000:18:090
250858599270,6cyclictest0-21swapper/000:18:090
250858599269,6cyclictest13-21ksoftirqd/020:34:040
2508585992622,2cyclictest26823022sleep023:57:090
2508585992621,3cyclictest2589909-21taskset21:53:570
2508585992610,6cyclictest13-21ksoftirqd/020:09:570
250858599252,9cyclictest13-21ksoftirqd/022:15:300
250858599251,7cyclictest2556461-21diskmemload22:57:010
26023632240,2sleep02602459-21irqstats22:10:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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