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2026-01-10 - 10:06
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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 Sat Jan 10, 2026 00:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
38373662279218,47sleep10-21swapper/119:08:561
38372982257182,59sleep00-21swapper/019:08:110
403293121430,4sleep10-21swapper/100:25:101
385861621320,4sleep13858565-21munin-run20:00:001
40002432830,3sleep10-21swapper/123:40:001
38966332820,10sleep013-21ksoftirqd/021:21:340
38966332820,10sleep013-21ksoftirqd/021:21:340
179699560,4rtkit-daemon1795-21rtkit-daemon00:32:100
179699550,4rtkit-daemon1795-21rtkit-daemon00:28:060
39168572540,2sleep10-21swapper/121:49:171
179699540,4rtkit-daemon1795-21rtkit-daemon22:42:131
179699530,3rtkit-daemon0-21swapper/120:59:441
179699520,4rtkit-daemon1795-21rtkit-daemon20:49:491
179699500,5rtkit-daemon3886769-21diskmemload23:52:230
179699500,3rtkit-daemon1795-21rtkit-daemon00:20:001
179699480,3rtkit-daemon1795-21rtkit-daemon21:14:341
179699480,19rtkit-daemon1795-21rtkit-daemon19:26:191
179699470,3rtkit-daemon1795-21rtkit-daemon00:06:181
179699460,3rtkit-daemon1795-21rtkit-daemon23:22:020
179699460,3rtkit-daemon1795-21rtkit-daemon20:11:000
179699440,4rtkit-daemon1795-21rtkit-daemon23:58:250
179699440,1rtkit-daemon1795-21rtkit-daemon21:37:231
179699430,4rtkit-daemon3901536-21ssh21:28:400
179699430,3rtkit-daemon0-21swapper/120:51:460
179699430,3rtkit-daemon0-21swapper/023:04:400
179699420,4rtkit-daemon1795-21rtkit-daemon23:06:170
179699420,3rtkit-daemon0-21swapper/123:48:320
179699420,3rtkit-daemon0-21swapper/122:09:590
179699420,3rtkit-daemon0-21swapper/023:33:470
179699420,1rtkit-daemon1795-21rtkit-daemon23:58:001
179699420,1rtkit-daemon1795-21rtkit-daemon23:26:571
38520282410,2sleep10-21swapper/119:40:261
179699410,3rtkit-daemon0-21swapper/122:41:430
179699410,3rtkit-daemon0-21swapper/021:32:030
179699400,3rtkit-daemon0-21swapper/121:18:440
179699400,1rtkit-daemon1795-21rtkit-daemon20:12:401
179699390,3rtkit-daemon1795-21rtkit-daemon00:21:450
179699390,3rtkit-daemon0-21swapper/123:37:060
179699390,3rtkit-daemon0-21swapper/122:11:190
179699380,5rtkit-daemon1795-21rtkit-daemon19:45:111
179699380,4rtkit-daemon1795-21rtkit-daemon20:23:250
179699380,3rtkit-daemon0-21swapper/122:23:270
179699380,3rtkit-daemon0-21swapper/121:51:191
179699380,3rtkit-daemon0-21swapper/121:41:380
179699380,3rtkit-daemon0-21swapper/121:41:380
179699370,3rtkit-daemon0-21swapper/121:57:111
179699370,3rtkit-daemon0-21swapper/121:52:580
179699360,3rtkit-daemon1795-21rtkit-daemon00:36:100
179699360,3rtkit-daemon0-21swapper/122:02:110
179699360,3rtkit-daemon0-21swapper/121:47:130
179699360,3rtkit-daemon0-21swapper/120:41:150
179699360,3rtkit-daemon0-21swapper/119:23:121
179699360,3rtkit-daemon0-21swapper/119:12:280
179699360,3rtkit-daemon0-21swapper/100:11:171
179699350,4rtkit-daemon1795-21rtkit-daemon19:32:181
179699350,3rtkit-daemon1795-21rtkit-daemon22:29:581
179699350,3rtkit-daemon1795-21rtkit-daemon22:09:451
179699350,3rtkit-daemon0-21swapper/123:43:020
179699350,3rtkit-daemon0-21swapper/122:45:331
179699350,3rtkit-daemon0-21swapper/122:28:170
179699350,3rtkit-daemon0-21swapper/121:57:460
179699340,6rtkit-daemon3983861-21pool-udisksd23:16:221
179699340,4rtkit-daemon1795-21rtkit-daemon21:20:391
179699340,4rtkit-daemon1795-21rtkit-daemon21:20:381
179699340,3rtkit-daemon0-21swapper/121:40:221
179699340,3rtkit-daemon0-21swapper/121:40:211
179699340,3rtkit-daemon0-21swapper/119:32:390
39943902330,14sleep126-21ksoftirqd/123:30:231
179699330,3rtkit-daemon1795-21rtkit-daemon22:11:121
179699320,3rtkit-daemon1795-21rtkit-daemon22:34:331
179699320,3rtkit-daemon0-21swapper/122:34:050
383768699301,15cyclictest3886769-21diskmemload00:11:490
179699300,4rtkit-daemon1795-21rtkit-daemon20:37:311
3837688992822,4cyclictest26-21ksoftirqd/122:50:021
3837688992813,9cyclictest3902487-21apt-get21:30:131
383768699287,8cyclictest13-21ksoftirqd/022:53:160
3837688992712,10cyclictest3978459-21apt-get23:10:121
383768899270,6cyclictest0-21swapper/123:40:141
3837686992724,2cyclictest66950irq/132-enp2s019:27:340
383768699271,14cyclictest3886769-21diskmemload22:15:340
383768699271,13cyclictest3886769-21diskmemload23:16:270
3837688992610,10cyclictest3869374-21apt-get20:25:121
383768899260,6cyclictest0-21swapper/100:01:411
383768699261,7cyclictest3886769-21diskmemload23:29:460
383768699261,12cyclictest3886769-21diskmemload22:59:320
383768699261,12cyclictest3886769-21diskmemload22:45:100
383768699261,11cyclictest3886769-21diskmemload22:36:450
179699260,18rtkit-daemon3936508-21/usr/sbin/munin22:15:161
383768899253,15cyclictest4007882-21apt-get23:50:111
383768899252,16cyclictest3986097-21apt-get23:20:131
383768899252,16cyclictest3871327-21apt-get20:30:151
383768899250,6cyclictest0-21swapper/119:12:291
383768699255,8cyclictest13-21ksoftirqd/020:57:380
383768699253,8cyclictest13-21ksoftirqd/019:57:580
383768699251,7cyclictest3886769-21diskmemload23:12:330
383768699251,6cyclictest3886769-21diskmemload21:12:340
3837686992511,6cyclictest13-21ksoftirqd/020:19:560
3837686992510,10cyclictest4025715-21apt-get00:15:070
383768899246,11cyclictest3840752-21apt-get19:15:121
383768899242,16cyclictest4029331-21apt-get00:20:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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