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2026-05-24 - 10:30
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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 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
250858599249,4cyclictest141rcu_preempt00:38:550
250858599249,3cyclictest141rcu_preempt23:32:090
250858599249,3cyclictest141rcu_preempt00:20:580
250858599248,4cyclictest141rcu_preempt22:22:140
250858599248,10cyclictest2527338-21apt-get19:55:140
250858599242,15cyclictest2658045-21apt-get23:25:110
250858599241,9cyclictest2556461-21diskmemload21:14:220
250858899232,15cyclictest2550794-21apt-get20:55:131
250858899230,7cyclictest66950irq/132-enp2s023:20:301
250858599237,6cyclictest13-21ksoftirqd/019:16:520
250858599237,3cyclictest2579785-21cpuspeed_turbos21:40:140
250858599234,3cyclictest141rcu_preempt20:30:000
250858599230,11cyclictest13-21ksoftirqd/021:22:450
179699230,1rtkit-daemon1795-21rtkit-daemon20:23:490
250858599227,3cyclictest141rcu_preempt00:25:460
250858599226,4cyclictest141rcu_preempt23:05:230
250858599223,8cyclictest2683825-21apt-get00:00:140
250858599222,14cyclictest2598410-21apt-get22:05:150
2508585992218,2cyclictest2517031-21cut19:30:000
2508585992216,4cyclictest2687395-21seq00:05:130
2508585992211,2cyclictest141rcu_preempt19:37:220
179699220,3rtkit-daemon0-21swapper/021:05:260
179699220,1rtkit-daemon1795-21rtkit-daemon21:45:310
179699220,1rtkit-daemon1795-21rtkit-daemon21:39:210
179699220,1rtkit-daemon1795-21rtkit-daemon21:39:210
179699220,1rtkit-daemon1795-21rtkit-daemon21:02:230
179699220,1rtkit-daemon1795-21rtkit-daemon19:13:060
250858899212,13cyclictest26-21ksoftirqd/100:05:121
2508585992112,2cyclictest141rcu_preempt20:44:200
250858599210,6cyclictest0-21swapper/023:37:190
250858599210,6cyclictest0-21swapper/022:47:420
2508585992014,4cyclictest2549341-21if_err_enp2s020:50:180
2508585992013,5cyclictest2552559-21turbostat21:00:000
250858599200,8cyclictest2547314-21gltestperf20:45:180
250858899192,12cyclictest2552765-21apt-get21:00:131
250858599193,9cyclictest2513259-21apt-get19:20:130
250858599192,12cyclictest2542959-21/usr/sbin/munin20:35:260
250858599190,5cyclictest2522857-21python319:45:030
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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