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2026-09-20 - 10:19
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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 100 highest latencies:
System rackeslot3.osadl.org (updated Sun Sep 20, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
268185899680,2cyclictest2719831-21diskmemload00:00:001
268185899650,64cyclictest0-21swapper/121:35:141
268185899640,62cyclictest0-21swapper/121:40:061
2681858996142,17cyclictest2821550-21kworker/1:023:20:171
2681858996141,19cyclictest650405-1kworker/1:2H20:45:001
2681858996141,18cyclictest2724767-21kworker/1:021:17:061
2681858996137,14cyclictest2784815-21kworker/1:022:38:301
2681858996043,16cyclictest2876423-21kworker/1:100:05:151
2681858996041,18cyclictest2716697-21kworker/1:321:25:011
2681858996041,17cyclictest650405-1kworker/1:2H20:25:101
2681858995956,2cyclictest0-21swapper/122:53:001
2681858995940,17cyclictest2702560-21kworker/1:020:30:141
2681858995856,1cyclictest0-21swapper/123:28:301
2681858995844,14cyclictest2856811-21kworker/1:300:15:181
2681858995843,14cyclictest650405-1kworker/1:2H23:00:061
2681858995843,14cyclictest2892416-21kworker/1:000:25:311
2681858995843,14cyclictest2856811-21kworker/1:300:20:141
2681858995843,14cyclictest2834242-21kworker/1:123:30:161
2681858995843,14cyclictest2737546-21kworker/1:221:30:161
2681858995842,15cyclictest650405-1kworker/1:2H23:47:331
2681858995842,15cyclictest2688422-21kworker/1:219:50:151
2681858995842,15cyclictest2681694-21kworker/1:119:20:151
2681858995834,22cyclictest650405-1kworker/1:2H20:55:001
268185899581,56cyclictest1-21systemd00:37:451
2681858995742,14cyclictest650405-1kworker/1:2H21:14:541
2681858995742,14cyclictest2897734-21kworker/1:300:30:171
2681858995742,14cyclictest2856811-21kworker/1:300:10:141
2681858995742,14cyclictest2821550-21kworker/1:023:05:321
2681858995742,14cyclictest2716697-21kworker/1:321:00:161
2681858995742,14cyclictest2698559-21kworker/1:320:05:161
2681858995742,14cyclictest2691487-21kworker/1:319:40:151
2681858995741,15cyclictest650405-1kworker/1:2H19:19:291
2681858995741,15cyclictest2770908-21kworker/1:122:20:151
2681858995740,16cyclictest2821550-21kworker/1:023:15:151
2681858995740,16cyclictest2708716-21kworker/1:221:05:171
2681858995740,16cyclictest2708716-21kworker/1:220:35:151
2681858995642,14cyclictest2697919-21kworker/1:020:00:061
2681858995641,14cyclictest2821550-21kworker/1:023:10:031
2681858995641,14cyclictest2810770-21kworker/1:122:55:151
2681858995641,14cyclictest2784815-21kworker/1:022:45:201
2681858995641,14cyclictest2784815-21kworker/1:022:43:541
2681858995641,14cyclictest2764247-21kworker/1:022:07:261
2681858995641,14cyclictest2764247-21kworker/1:022:00:001
2681858995639,16cyclictest2780295-21kworker/1:322:30:131
2681858995637,18cyclictest2862111-21kworker/1:023:50:141
2681858995541,14cyclictest2784815-21kworker/1:022:27:011
2681858995540,14cyclictest2856811-21kworker/1:300:00:031
2681858995540,14cyclictest2846589-21kworker/1:223:35:261
2681858995540,14cyclictest2764247-21kworker/1:022:10:211
2681858995540,14cyclictest2737546-21kworker/1:221:47:231
2681858995540,14cyclictest2693049-21kworker/1:019:45:261
2681858995538,16cyclictest2724767-21kworker/1:021:30:011
2681863995438,3cyclictest526925-1kworker/3:2H22:09:553
2681858995439,14cyclictest2737546-21kworker/1:221:55:231
2681858995439,14cyclictest2702560-21kworker/1:020:20:171
2681858995439,14cyclictest2702560-21kworker/1:020:15:001
2681858995439,14cyclictest2681694-21kworker/1:119:10:011
2681858995435,17cyclictest650405-1kworker/1:2H20:20:001
2681863995348,3cyclictest2733059-21kworker/3:121:52:233
2681863995340,3cyclictest526925-1kworker/3:2H20:25:123
2681858995338,14cyclictest2764247-21kworker/1:022:15:131
2681858995338,14cyclictest2688422-21kworker/1:219:35:001
2681858995337,15cyclictest2710259-21kworker/1:020:55:151
2681857995350,2cyclictest2831269-21kworker/0:323:26:300
2681857995349,2cyclictest2818974-21kworker/0:123:08:060
2681857995348,3cyclictest2856527-21kworker/0:023:53:000
2681863995247,3cyclictest526925-1kworker/3:2H19:31:563
2681858995237,14cyclictest2846589-21kworker/1:223:40:121
2681858995236,15cyclictest2688422-21kworker/1:219:55:161
2681857995248,2cyclictest2800471-21kworker/0:122:44:300
2681857995248,2cyclictest2772258-21kworker/0:022:37:400
2681857995247,3cyclictest2887923-21kworker/0:100:27:110
2681863995147,3cyclictest526925-1kworker/3:2H22:29:543
2681863995146,3cyclictest526925-1kworker/3:2H23:45:233
2681863995146,3cyclictest526925-1kworker/3:2H21:40:573
2681858995136,14cyclictest2737546-21kworker/1:221:50:131
2681858995136,14cyclictest2710259-21kworker/1:020:45:141
2681858995134,16cyclictest650405-1kworker/1:2H19:30:001
2681857995147,2cyclictest2679111-21kworker/0:019:14:310
2681857995146,3cyclictest2689947-21kworker/0:220:00:220
2681863995047,2cyclictest2844896-21kworker/3:223:43:553
2681863995045,3cyclictest2786208-21kworker/3:022:34:553
2681863995044,4cyclictest2764649-21kworker/3:222:23:573
2681858995035,14cyclictest2688422-21kworker/1:219:35:011
2681857995047,2cyclictest2869448-21kworker/0:200:07:290
2681857995047,2cyclictest2806409-21kworker/0:022:47:300
2681857995046,3cyclictest2772258-21kworker/0:022:25:420
2681857995046,2cyclictest2772258-21kworker/0:022:14:300
2681857995045,3cyclictest2827003-21kworker/0:223:11:020
2681863994946,2cyclictest2764649-21kworker/3:222:04:543
2681861994945,3cyclictest1310283-1kworker/2:2H23:30:262
2681861994944,3cyclictest1310283-1kworker/2:2H22:15:142
2681861994944,3cyclictest1310283-1kworker/2:2H21:25:152
2681857994946,2cyclictest2869448-21kworker/0:200:04:340
2681857994946,2cyclictest2689947-21kworker/0:219:35:440
2681857994946,2cyclictest2684029-21kworker/0:119:26:550
2681857994945,3cyclictest2869448-21kworker/0:223:57:010
2681857994944,3cyclictest2810920-21kworker/0:222:53:000
2681863994844,2cyclictest2786208-21kworker/3:023:09:003
2681863994844,2cyclictest2705700-21kworker/3:221:00:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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