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2025-10-21 - 16:21
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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 50 highest latencies:
System rackeslot3.osadl.org (updated Tue Oct 21, 2025 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
256319199661,63cyclictest2633443-21kworker/1:111:00:121
2563191996536,28cyclictest2558550-21kworker/1:007:10:181
2563191996461,2cyclictest0-21swapper/110:40:231
2563191996461,2cyclictest0-21swapper/110:15:061
2563191996461,2cyclictest0-21swapper/107:50:521
2563191996441,21cyclictest499029-1kworker/1:1H07:24:591
2563191996360,2cyclictest0-21swapper/110:56:511
2563191996360,2cyclictest0-21swapper/108:44:521
2563191996338,22cyclictest499029-1kworker/1:1H08:50:001
256319199630,62cyclictest0-21swapper/112:37:521
256319199630,62cyclictest0-21swapper/109:21:211
256319199630,61cyclictest2648732-21fschecks_time11:25:181
2563191996259,2cyclictest0-21swapper/109:44:271
256319199620,60cyclictest0-21swapper/108:59:531
2563191996157,2cyclictest0-21swapper/108:14:591
2563191996145,15cyclictest2558550-21kworker/1:008:15:171
256319199610,60cyclictest0-21swapper/109:36:191
2563191996058,1cyclictest0-21swapper/109:48:221
2563191996057,2cyclictest0-21swapper/112:19:181
2563191996043,15cyclictest499029-1kworker/1:1H08:05:131
2563191996041,17cyclictest2641569-21kworker/1:211:05:151
2563191995957,1cyclictest0-21swapper/110:09:531
2563191995957,1cyclictest0-21swapper/108:20:381
2563191995957,1cyclictest0-21swapper/107:41:031
2563191995943,15cyclictest2558550-21kworker/1:007:55:171
2563191995842,15cyclictest2633443-21kworker/1:110:50:151
2563191995841,17cyclictest2558550-21kworker/1:008:54:591
2563191995841,16cyclictest2558550-21kworker/1:009:05:151
2563191995755,1cyclictest0-21swapper/112:30:011
2563191995755,1cyclictest0-21swapper/110:22:161
2563191995754,2cyclictest0-21swapper/112:24:521
2563191995742,14cyclictest2654800-21kworker/1:112:00:171
2563191995742,14cyclictest2643192-21kworker/1:011:30:011
2563191995742,14cyclictest2628576-21kworker/1:210:25:291
2563191995741,15cyclictest2633443-21kworker/1:110:45:151
2563191995738,18cyclictest2558550-21kworker/1:008:30:181
2563191995641,14cyclictest2659933-21kworker/1:012:08:521
2563191995641,14cyclictest2654800-21kworker/1:111:45:011
2563191995641,14cyclictest2558550-21kworker/1:008:25:161
2563191995641,14cyclictest2558550-21kworker/1:008:04:551
2563191995641,14cyclictest2558550-21kworker/1:007:15:011
2563191995640,15cyclictest2628576-21kworker/1:210:30:141
2563191995541,14cyclictest2558550-21kworker/1:007:35:171
2563191995540,14cyclictest2651797-21kworker/1:211:40:171
2563191995540,14cyclictest2558550-21kworker/1:007:48:211
2563191995539,15cyclictest2628576-21kworker/1:210:35:141
2563196995449,3cyclictest221602-1kworker/2:2H11:20:322
2563196995449,3cyclictest221602-1kworker/2:2H07:41:032
2563191995439,14cyclictest2659933-21kworker/1:012:10:151
2563191995439,14cyclictest2654800-21kworker/1:111:50:441
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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