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2026-04-19 - 13:50
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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 Apr 19, 2026 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4086623997244,26cyclictest4107284-21kworker/1:020:50:001
4086623997236,34cyclictest4107284-21kworker/1:020:35:161
4086623997044,25cyclictest4187054-21kworker/1:322:35:151
4086623997038,30cyclictest48658-21kworker/1:023:45:121
4086623997038,30cyclictest48658-21kworker/1:023:45:121
4086623996960,6cyclictest33872-21fschecks_time23:15:131
4086623996938,30cyclictest41005-21kworker/1:223:25:141
4086623996936,31cyclictest84180-21kworker/1:100:25:021
4086623996843,24cyclictest2449467-1kworker/1:1H20:25:141
4086623996841,25cyclictest70164-21kworker/1:300:05:131
4086623996743,22cyclictest2449467-1kworker/1:1H22:50:061
408662399671,2cyclictest0-21swapper/122:30:591
4086623996636,28cyclictest36630-21kworker/1:023:20:141
4086623996542,22cyclictest4083634-21kworker/1:119:15:151
4086623996539,25cyclictest15099-21kworker/1:222:55:151
4086623996536,28cyclictest4124529-21kworker/1:121:25:131
408662399650,63cyclictest0-21swapper/121:35:141
4086623996437,26cyclictest84180-21kworker/1:100:20:131
4086623996430,32cyclictest4140602-21kworker/1:221:30:141
4086623996343,19cyclictest4100530-21kworker/1:319:57:351
4086623996340,22cyclictest41005-21kworker/1:223:35:161
4086623996334,28cyclictest4083634-21kworker/1:119:10:141
4086623996332,29cyclictest4158230-21kworker/1:321:55:001
4086623996234,26cyclictest48658-21kworker/1:023:55:171
408662399621,1cyclictest4116575-21cron20:45:001
4086623996147,12cyclictest26350irq/16-i801_smb21:24:551
4086623996144,16cyclictest4107284-21kworker/1:020:20:581
4086623996045,14cyclictest4107284-21kworker/1:020:50:011
4086623996033,15cyclictest2449467-1kworker/1:1H20:15:141
4086623996030,18cyclictest48658-21kworker/1:023:45:001
4086623995956,2cyclictest0-21swapper/123:10:061
4086623995944,14cyclictest4166162-21kworker/1:222:10:361
4086623995944,14cyclictest4166162-21kworker/1:222:10:361
4086623995944,14cyclictest4166162-21kworker/1:222:05:151
4086623995943,15cyclictest70164-21kworker/1:300:10:141
4086623995855,2cyclictest0-21swapper/119:49:561
4086623995845,2cyclictest26350irq/16-i801_smb21:19:551
4086623995843,14cyclictest48658-21kworker/1:023:33:251
4086623995843,14cyclictest48658-21kworker/1:023:33:251
4086623995843,14cyclictest4162341-21kworker/1:021:55:341
4086623995843,14cyclictest4145228-21kworker/1:021:42:591
4086623995843,14cyclictest4094920-21kworker/1:219:36:581
4086623995842,15cyclictest4121177-21kworker/1:221:10:221
4086623995842,15cyclictest4104205-21kworker/1:220:09:591
4086623995842,15cyclictest4091590-21kworker/1:019:24:581
4086623995842,15cyclictest2449467-1kworker/1:1H22:41:581
4086623995840,17cyclictest4094920-21kworker/1:219:40:141
4086623995831,16cyclictest1335-21kworker/1:222:45:141
4086623995742,14cyclictest4100530-21kworker/1:320:10:131
4086623995740,16cyclictest101681-21kworker/1:000:40:011
4086623995641,14cyclictest4166162-21kworker/1:222:15:151
4086623995641,14cyclictest4121177-21kworker/1:221:07:481
4086623995640,15cyclictest48658-21kworker/1:000:00:141
4086623995640,15cyclictest4187054-21kworker/1:322:25:221
4086623995640,15cyclictest4104196-21kworker/1:120:01:581
4086623995640,15cyclictest2449467-1kworker/1:1H19:54:271
4086623995640,15cyclictest19419-21kworker/1:123:03:001
4086623995639,16cyclictest97356-21kworker/1:100:35:001
4086623995639,16cyclictest4107284-21kworker/1:020:30:321
4086623995639,15cyclictest4091590-21kworker/1:019:25:141
4086631995550,3cyclictest1677842-1kworker/3:0H21:45:133
4086623995539,15cyclictest48658-21kworker/1:023:50:151
4086623995539,15cyclictest4180484-21kworker/1:022:20:341
4086623995539,15cyclictest4145228-21kworker/1:021:48:001
4086623995539,15cyclictest4119636-21kworker/1:120:59:581
4086623995539,15cyclictest4094920-21kworker/1:219:32:301
408662399550,53cyclictest0-21swapper/123:08:291
408662399550,2cyclictest0-21swapper/100:18:231
4086631995447,4cyclictest1677842-1kworker/3:0H00:38:253
4086623995438,15cyclictest4155176-21kworker/1:122:00:021
4086621995450,3cyclictest4090310-21kworker/0:019:30:060
4086631995348,3cyclictest70176-21kworker/3:000:03:273
4086626995348,4cyclictest3819399-1kworker/2:0H22:50:152
4086621995348,3cyclictest882394-1kworker/0:0H22:29:590
4086631995248,2cyclictest2024469-21kworker/3:219:36:023
4086631995247,3cyclictest4102728-21kworker/3:222:14:293
4086631995247,3cyclictest4102728-21kworker/3:222:14:293
4086621995248,2cyclictest4192281-21kworker/0:122:50:340
4086621995245,4cyclictest882394-1kworker/0:0H21:53:000
4086631995147,3cyclictest4102728-21kworker/3:222:03:033
4086631995146,3cyclictest1677842-1kworker/3:0H23:09:553
4086626995147,3cyclictest3819399-1kworker/2:0H23:45:352
4086626995147,3cyclictest3819399-1kworker/2:0H23:45:352
4086626995147,2cyclictest28804-21kworker/2:123:20:592
4086623995135,15cyclictest4121177-21kworker/1:221:01:581
4086621995148,2cyclictest4102646-21kworker/0:020:28:030
4086621995146,3cyclictest882394-1kworker/0:0H23:33:250
4086621995146,3cyclictest882394-1kworker/0:0H23:33:250
4086621995146,3cyclictest882394-1kworker/0:0H22:05:260
4086631995047,2cyclictest33214-21kworker/3:223:56:593
4086631995046,2cyclictest4177105-21kworker/3:022:19:553
4086631995045,3cyclictest1677842-1kworker/3:0H21:38:293
4086621995046,3cyclictest55467-21kworker/0:023:45:590
4086621995046,3cyclictest55467-21kworker/0:023:45:590
4086621995045,3cyclictest4145231-21kworker/0:021:56:310
4086621995044,3cyclictest882394-1kworker/0:0H23:15:010
4086621995036,3cyclictest882394-1kworker/0:0H21:35:000
4086631994946,2cyclictest1677842-1kworker/3:0H19:14:543
4086631994943,3cyclictest1677842-1kworker/3:0H20:15:123
4086621994946,2cyclictest67818-21kworker/0:200:00:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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