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2026-01-07 - 11:39
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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 Wed Jan 07, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1063034997234,36cyclictest1106144-21kworker/1:021:30:151
106303499690,66cyclictest0-21swapper/123:35:411
106303499681,65cyclictest0-21swapper/100:30:221
106303499671,64cyclictest0-21swapper/100:00:241
106303499660,64cyclictest0-21swapper/121:06:561
106303499660,2cyclictest0-21swapper/123:05:411
1063034996461,2cyclictest0-21swapper/122:47:051
1063034996461,2cyclictest0-21swapper/122:42:041
1063034996433,29cyclictest1071952-21kworker/1:019:40:151
106303499640,62cyclictest0-21swapper/121:22:201
1063034996360,2cyclictest0-21swapper/121:40:421
106303499630,61cyclictest0-21swapper/123:00:451
1063034996058,1cyclictest0-21swapper/122:50:301
1063034996041,17cyclictest1146798-21kworker/1:023:40:151
106303499600,2cyclictest0-21swapper/121:29:151
1063034995957,1cyclictest0-21swapper/120:21:461
1063034995942,16cyclictest1156684-21kworker/1:000:20:001
1063034995942,16cyclictest1123647-21kworker/1:222:20:151
1063034995940,18cyclictest1106144-21kworker/1:022:00:151
1063034995938,19cyclictest1126466-21kworker/1:022:27:081
1063034995843,14cyclictest538195-1kworker/1:0H23:20:141
1063034995843,14cyclictest1156684-21kworker/1:000:05:151
1063034995843,14cyclictest1149901-21kworker/1:223:50:111
1063034995843,14cyclictest1140968-21kworker/1:323:30:151
1063034995843,14cyclictest1140968-21kworker/1:323:25:471
1063034995843,14cyclictest1083119-21kworker/1:320:30:001
1063034995843,14cyclictest1075988-21kworker/1:119:52:101
1063034995842,15cyclictest1083119-21kworker/1:320:10:171
1063034995841,16cyclictest538195-1kworker/1:0H00:40:001
1063034995838,18cyclictest538195-1kworker/1:0H23:57:221
1063034995838,18cyclictest1095071-21kworker/1:221:00:141
1063034995742,14cyclictest1156684-21kworker/1:000:25:001
1063034995742,14cyclictest1134195-21kworker/1:022:55:241
1063034995742,14cyclictest1083119-21kworker/1:320:40:131
1063034995742,14cyclictest1075988-21kworker/1:120:05:151
1063034995742,14cyclictest1075988-21kworker/1:120:00:141
1063034995739,17cyclictest1121841-21kworker/1:122:15:131
1063034995738,17cyclictest1090176-21kworker/1:120:35:141
1063034995654,1cyclictest0-21swapper/121:49:521
1063034995641,14cyclictest1156684-21kworker/1:000:18:451
1063034995641,14cyclictest1126466-21kworker/1:022:30:001
1063034995641,14cyclictest1103037-21kworker/1:021:11:471
1063034995641,14cyclictest1099816-21kworker/1:121:15:171
1063034995641,14cyclictest1083119-21kworker/1:320:25:011
1063034995641,14cyclictest1061450-21kworker/1:219:20:151
1063034995640,15cyclictest538195-1kworker/1:0H19:45:221
1063034995640,15cyclictest1068895-21kworker/1:319:25:171
1063034995640,15cyclictest1068895-21kworker/1:319:25:161
1063034995639,16cyclictest1095071-21kworker/1:220:55:151
1063034995638,17cyclictest1138837-21kworker/1:223:10:131
1063034995636,19cyclictest538195-1kworker/1:0H22:40:001
1063034995540,14cyclictest1149901-21kworker/1:223:47:201
1063034995540,14cyclictest1068895-21kworker/1:319:31:311
1063034995540,14cyclictest1068895-21kworker/1:319:31:311
1063034995539,15cyclictest1093532-21kworker/1:120:50:131
1063034995536,18cyclictest1156684-21kworker/1:000:10:141
1063034995536,18cyclictest1156684-21kworker/1:000:10:131
1063042995449,3cyclictest4145281-1kworker/3:1H20:06:373
1063042995449,3cyclictest1146855-21kworker/3:223:54:553
1063034995439,14cyclictest538195-1kworker/1:0H19:55:141
1063034995439,14cyclictest1106144-21kworker/1:022:05:001
1063034995439,14cyclictest1106144-21kworker/1:021:55:151
1063034995438,15cyclictest1071952-21kworker/1:019:35:131
1063034995437,16cyclictest1140968-21kworker/1:323:15:141
1063034995437,16cyclictest1106144-21kworker/1:021:50:141
1063034995437,16cyclictest1093532-21kworker/1:120:45:131
1063034995436,17cyclictest1083119-21kworker/1:320:15:151
1063032995450,2cyclictest3267985-1kworker/0:1H23:30:450
1063042995348,3cyclictest4145281-1kworker/3:1H21:07:203
1063042995348,3cyclictest1095076-21kworker/3:221:14:553
1063034995350,2cyclictest26350irq/16-i801_smb19:16:331
1063034995338,14cyclictest1106144-21kworker/1:021:35:131
1063032995348,3cyclictest3267985-1kworker/0:1H00:34:450
1063042995247,3cyclictest1095076-21kworker/3:222:04:553
1063034995237,14cyclictest1106144-21kworker/1:022:10:441
1063042995147,2cyclictest1095076-21kworker/3:222:17:003
1063042995147,2cyclictest1087153-21kworker/3:120:44:093
1063042995146,3cyclictest4145281-1kworker/3:1H22:34:553
1063042995146,3cyclictest1095076-21kworker/3:221:52:043
1063039995147,3cyclictest703680-1kworker/2:0H20:50:572
1063039995147,2cyclictest1093538-21kworker/2:121:29:442
1063039995146,3cyclictest703680-1kworker/2:0H00:40:002
1063039995146,3cyclictest1114109-21kworker/2:222:34:442
1063039995144,4cyclictest703680-1kworker/2:0H20:56:472
1063034995135,15cyclictest1061450-21kworker/1:219:11:461
1063032995148,2cyclictest1091975-21kworker/0:020:39:450
1063032995145,3cyclictest3267985-1kworker/0:1H21:45:130
1063042995047,2cyclictest1126534-21kworker/3:123:00:153
1063039995047,2cyclictest1134186-21kworker/2:222:54:592
1063039995045,3cyclictest703680-1kworker/2:0H21:30:232
1063032995047,2cyclictest1145011-21kworker/0:223:44:110
1063042994945,3cyclictest1146855-21kworker/3:223:35:513
1063042994945,3cyclictest1062902-21kworker/3:119:56:343
1063042994944,3cyclictest4145281-1kworker/3:1H21:39:553
1063039994946,2cyclictest1162274-21kworker/2:000:24:102
1063039994946,2cyclictest1093538-21kworker/2:121:35:052
1063032994946,2cyclictest1107678-21kworker/0:221:34:110
1063032994945,3cyclictest1132648-21kworker/0:222:50:300
1063032994945,2cyclictest1107678-21kworker/0:221:36:540
1063042994845,2cyclictest1095076-21kworker/3:222:09:553
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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