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2025-11-23 - 21:10
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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
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack1slot8.osadl.org (updated Sun Nov 23, 2025 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26222998482,7cyclictest5209-21entropy07:40:170
2622399809747,27cyclictest0-21swapper/107:40:171
2622399519436,50cyclictest0-21swapper/107:10:061
2622299457386,51cyclictest0-21swapper/007:10:050
26222999712,25cyclictest0-21swapper/007:56:590
26223999614,35cyclictest0-21swapper/108:37:591
216899960,4rtkit-daemon2167-21rtkit-daemon12:19:500
216899960,4rtkit-daemon2167-21rtkit-daemon11:15:431
216899930,4rtkit-daemon2167-21rtkit-daemon10:35:471
26223999213,35cyclictest0-21swapper/112:08:581
216899920,4rtkit-daemon17031-21ssh09:29:511
216899910,4rtkit-daemon2167-21rtkit-daemon12:25:550
216899900,4rtkit-daemon2167-21rtkit-daemon10:46:180
26223998916,35cyclictest0-21swapper/107:35:591
26223998912,37cyclictest0-21swapper/111:55:581
26223998912,34cyclictest0-21swapper/111:23:591
26223998818,31cyclictest0-21swapper/108:25:001
26223998812,35cyclictest0-21swapper/108:46:001
216899880,4rtkit-daemon2167-21rtkit-daemon10:46:131
26223998713,67cyclictest0-21swapper/109:44:591
26223998711,39cyclictest0-21swapper/107:23:591
216899870,4rtkit-daemon7335-21ssh10:05:471
26223998625,54cyclictest0-21swapper/111:02:591
26223998613,35cyclictest0-21swapper/108:34:001
216899850,4rtkit-daemon2167-21rtkit-daemon10:13:371
216899850,3rtkit-daemon2167-21rtkit-daemon12:20:150
26223998434,44cyclictest0-21swapper/111:45:001
26223998434,44cyclictest0-21swapper/111:45:001
2496628230,27sleep10-21swapper/107:05:161
216899800,4rtkit-daemon2167-21rtkit-daemon10:19:220
26223997913,58cyclictest0-21swapper/112:10:591
216899790,13rtkit-daemon2167-21rtkit-daemon09:12:411
26222997713,50cyclictest0-21swapper/008:08:000
216899770,4rtkit-daemon2167-21rtkit-daemon08:17:450
216899760,4rtkit-daemon2167-21rtkit-daemon09:26:160
216899760,4rtkit-daemon2167-21rtkit-daemon08:45:001
121962750,4chrt12198-21kernelversion11:10:191
26223997428,29cyclictest0-21swapper/111:33:591
216899740,3rtkit-daemon2167-21rtkit-daemon09:33:570
26222997323,43cyclictest0-21swapper/010:50:500
26222997323,34cyclictest0-21swapper/012:12:580
216899730,4rtkit-daemon2167-21rtkit-daemon07:25:190
216899720,29rtkit-daemon2167-21rtkit-daemon10:00:171
216899720,10rtkit-daemon0-21swapper/010:29:070
26223997112,40cyclictest0-21swapper/107:49:001
26222997125,29cyclictest0-21swapper/012:33:580
216899710,4rtkit-daemon2167-21rtkit-daemon10:40:181
216899710,4rtkit-daemon2167-21rtkit-daemon10:33:580
216899710,4rtkit-daemon2167-21rtkit-daemon09:19:160
2622399709,43cyclictest13995-21ssh09:24:591
2622399695,43cyclictest0-21swapper/110:00:001
26223996916,35cyclictest0-21swapper/112:20:591
2622299695,46cyclictest0-21swapper/009:15:010
26222996940,22cyclictest0-21swapper/011:30:270
26222996926,31cyclictest1427-21runrttasks09:20:210
216899690,27rtkit-daemon2167-21rtkit-daemon09:32:211
26223996813,38cyclictest0-21swapper/107:28:591
26222996817,34cyclictest0-21swapper/010:07:590
216899680,4rtkit-daemon2167-21rtkit-daemon09:41:120
216899680,4rtkit-daemon2167-21rtkit-daemon09:36:511
216899680,27rtkit-daemon2167-21rtkit-daemon11:47:241
26223996715,34cyclictest0-21swapper/110:59:591
26223996714,34cyclictest0-21swapper/109:07:591
26223996713,37cyclictest0-21swapper/107:30:591
26222996740,17cyclictest0-21swapper/011:45:170
26222996726,35cyclictest31098-21sh09:51:360
216899670,4rtkit-daemon2167-21rtkit-daemon09:47:360
216899670,4rtkit-daemon2167-21rtkit-daemon09:03:211
216899670,27rtkit-daemon2167-21rtkit-daemon07:06:140
26223996617,30cyclictest0-21swapper/108:05:591
26223996615,33cyclictest0-21swapper/112:15:591
26222996643,16cyclictest0-21swapper/011:00:200
26222996631,28cyclictest8701-21ssh11:05:120
26222996625,15cyclictest30007-21munin-run08:50:000
26222996616,35cyclictest0-21swapper/008:01:590
216899660,4rtkit-daemon2167-21rtkit-daemon08:03:401
26223996515,35cyclictest0-21swapper/112:00:581
26222996526,32cyclictest17251-21sadc11:20:000
26222996522,26cyclictest1258-21latency_hist09:00:000
26222996522,14cyclictest11490-21telnet12:05:130
26222996515,38cyclictest0-21swapper/007:21:590
26222996514,36cyclictest0-21swapper/011:10:590
26223996427,26cyclictest0-21swapper/107:59:591
26223996416,33cyclictest0-21swapper/111:52:581
26223996414,35cyclictest0-21swapper/110:27:591
26223996413,36cyclictest0-21swapper/110:22:001
26222996440,18cyclictest0-21swapper/008:45:010
26222996435,23cyclictest0-21swapper/009:57:590
26222996431,25cyclictest0-21swapper/010:55:270
26222996426,33cyclictest27056-21ssh10:40:220
26222996425,32cyclictest15761-21basename08:10:130
26222996424,35cyclictest3153-21telnet10:00:130
26222996424,33cyclictest9676-21grep12:00:280
26222996423,34cyclictest9500-21cut10:10:210
26223996318,28cyclictest0-21swapper/108:11:001
26223996316,32cyclictest0-21swapper/108:54:591
26223996314,35cyclictest0-21swapper/111:09:591
26223996311,38cyclictest0-21swapper/108:17:591
26222996326,29cyclictest26395-21crond08:40:000
26222996323,35cyclictest4944-21diskmemload11:35:490
26222996314,34cyclictest0-21swapper/008:31:000
26222996310,32cyclictest0-21swapper/009:35:140
26223996216,31cyclictest0-21swapper/108:25:591
26223996214,32cyclictest0-21swapper/108:56:591
26223996213,32cyclictest0-21swapper/110:50:591
26222996240,16cyclictest0-21swapper/012:35:190
26222996229,26cyclictest0-21swapper/011:20:140
26222996226,21cyclictest5076-21latency_hist09:10:010
26222996221,34cyclictest16834-21rm10:23:100
261462620,4sleep126147-21ssh12:30:161
26223996113,33cyclictest0-21swapper/111:26:001
26223996110,35cyclictest0-21swapper/107:17:591
26222996138,17cyclictest0-21swapper/007:55:000
26222996125,30cyclictest8342-21crond07:50:000
26222996125,29cyclictest24243-21ssh10:35:260
26222996124,31cyclictest21983-21ssh11:26:400
26223996015,32cyclictest0-21swapper/107:53:591
26223996011,34cyclictest0-21swapper/109:17:001
26222996022,32cyclictest29136-21kworker/0:111:41:290
26222996022,32cyclictest29136-21kworker/0:111:41:290
26222996019,17cyclictest28484-21munin-node07:15:160
265192594,11sleep10-21swapper/109:45:141
26222995923,30cyclictest4811-21ssh11:53:200
26222995919,20cyclictest1228-21munin-node07:30:230
2622299586,34cyclictest0-21swapper/008:30:010
26222995827,24cyclictest5756-21ssh11:55:130
26222995824,28cyclictest1327-21munin-node07:35:110
26222995815,28cyclictest0-21swapper/009:01:590
2622399578,35cyclictest0-21swapper/112:27:581
26223995713,31cyclictest0-21swapper/111:36:001
2622299575,46cyclictest0-21swapper/008:50:250
2622399569,34cyclictest0-21swapper/110:31:591
2622399565,35cyclictest0-21swapper/110:19:591
26222995514,29cyclictest0-21swapper/008:24:000
216899550,4rtkit-daemon2167-21rtkit-daemon09:54:421
216899540,3rtkit-daemon30398-21ssh12:36:351
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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