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2026-05-12 - 16:23
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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
Characteristics of the 100 highest latencies:
System rackcslot6.osadl.org (updated Tue May 12, 2026 12:46:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1831028993840,2cyclictest1897649-21systemd-userwor08:59:025
1831028993810,380cyclictest0-21swapper/511:55:025
1831028993810,380cyclictest0-21swapper/508:30:025
1831028993810,1cyclictest0-21swapper/512:30:025
1831028993800,379cyclictest0-21swapper/509:34:025
1831028993800,379cyclictest0-21swapper/507:36:025
1831028993800,1cyclictest0-21swapper/511:15:035
183102899379378,1cyclictest1827860-21kworker/5:207:24:025
183102899378377,1cyclictest1827860-21kworker/5:207:17:025
183102899378377,1cyclictest0-21swapper/510:08:025
183102899378377,1cyclictest0-21swapper/509:49:025
183102899378376,1cyclictest0-21swapper/511:49:025
183101599378377,1cyclictest1882965-21kworker/3:209:30:023
183101599378377,1cyclictest1882965-21kworker/3:209:05:023
183102899377376,1cyclictest1964187-21kworker/5:112:02:025
183102899377376,1cyclictest0-21swapper/511:31:025
183102899377376,1cyclictest0-21swapper/507:54:025
183101599377375,1cyclictest0-21swapper/308:11:033
183101599377375,1cyclictest0-21swapper/308:05:033
183102899376375,1cyclictest0-21swapper/508:48:025
183101599376375,1cyclictest0-21swapper/309:55:023
183101599376374,1cyclictest2000272-21kworker/3:212:20:023
183101599376374,1cyclictest0-21swapper/310:05:023
183101599376374,1cyclictest0-21swapper/309:25:023
183101599375374,1cyclictest1821846-21kworker/3:108:35:023
183101599375373,1cyclictest1955152-21kworker/3:110:55:023
183101599375373,1cyclictest1928090-21kworker/3:010:26:023
183101599375373,1cyclictest0-21swapper/312:15:023
183101599375373,1cyclictest0-21swapper/311:03:023
183101599374373,1cyclictest0-21swapper/312:01:023
183101599374373,1cyclictest0-21swapper/309:45:033
183101599374372,1cyclictest1882965-21kworker/3:209:35:023
183101599374372,1cyclictest1821846-21kworker/3:107:48:023
183101599374372,1cyclictest1821846-21kworker/3:107:20:023
183101599373372,1cyclictest0-21swapper/309:00:023
183101599373371,1cyclictest1821846-21kworker/3:107:12:023
183101599373371,1cyclictest0-21swapper/311:21:033
183101599373371,1cyclictest0-21swapper/307:35:033
183101599372371,1cyclictest1928090-21kworker/3:010:16:023
183101599372371,1cyclictest0-21swapper/312:36:023
183101599371370,1cyclictest1988250-21kworker/3:011:42:023
183101599371370,1cyclictest1882965-21kworker/3:208:54:023
183101599371370,1cyclictest1882965-21kworker/3:208:40:033
183101599371370,1cyclictest0-21swapper/310:54:033
183101599371370,1cyclictest0-21swapper/308:03:033
183101599371369,1cyclictest2000272-21kworker/3:212:11:023
183101599370369,1cyclictest2000272-21kworker/3:212:31:023
183101599370369,1cyclictest1988250-21kworker/3:011:47:023
183101599370369,1cyclictest1988250-21kworker/3:011:37:023
183101599370369,1cyclictest1988250-21kworker/3:011:34:023
183101599370369,1cyclictest1821846-21kworker/3:107:52:033
183101599370369,1cyclictest0-21swapper/308:49:023
183101599370369,1cyclictest0-21swapper/308:28:033
183101599370369,1cyclictest0-21swapper/308:28:023
183101599370369,1cyclictest0-21swapper/308:16:033
183101599370369,1cyclictest0-21swapper/307:41:033
183101599370369,1cyclictest0-21swapper/307:33:023
183101599370368,1cyclictest2000272-21kworker/3:212:29:023
183101599370368,1cyclictest2000272-21kworker/3:211:59:023
183101599370368,1cyclictest1821846-21kworker/3:107:57:033
183101599370368,1cyclictest0-21swapper/311:27:033
183101599370368,1cyclictest0-21swapper/310:01:023
183101599370368,1cyclictest0-21swapper/309:41:023
183101599369368,1cyclictest2000272-21kworker/3:212:07:023
183101599369368,1cyclictest1949146-21kworker/3:210:32:033
183101599369368,1cyclictest1882965-21kworker/3:209:19:023
183101599369368,1cyclictest0-21swapper/311:54:023
183101599369368,1cyclictest0-21swapper/309:21:023
183101599368367,1cyclictest1955152-21kworker/3:110:48:023
183101599366365,1cyclictest0-21swapper/310:43:023
183104199337336,1cyclictest0-21swapper/709:30:037
183104199337336,1cyclictest0-21swapper/709:05:027
183104199336334,1cyclictest1801977-21kworker/7:108:05:027
183104199335333,1cyclictest1801977-21kworker/7:108:11:027
183104199334333,1cyclictest1801977-21kworker/7:109:55:037
183104199334333,1cyclictest1801977-21kworker/7:109:25:037
183104199334332,1cyclictest0-21swapper/710:55:027
183104199333332,1cyclictest1801977-21kworker/7:112:01:037
183104199333332,1cyclictest1801977-21kworker/7:110:05:027
183104199333332,1cyclictest1801977-21kworker/7:109:45:027
183104199333332,1cyclictest0-21swapper/712:20:027
183104199333332,1cyclictest0-21swapper/710:26:027
183104199333332,1cyclictest0-21swapper/708:35:027
183104199333331,1cyclictest0-21swapper/707:48:027
183104199332331,1cyclictest1801977-21kworker/7:112:15:037
183104199332331,1cyclictest1801977-21kworker/7:111:03:027
183104199332331,1cyclictest0-21swapper/709:35:037
183104199332331,1cyclictest0-21swapper/707:20:037
183104199331330,1cyclictest1801977-21kworker/7:109:00:037
183104199331330,1cyclictest0-21swapper/710:16:027
183104199331329,1cyclictest1801977-21kworker/7:112:36:027
183104199330329,1cyclictest1801977-21kworker/7:111:21:027
183104199330329,1cyclictest1801977-21kworker/7:110:54:027
183104199330329,1cyclictest1801977-21kworker/7:107:35:027
183104199330329,1cyclictest0-21swapper/708:40:027
183104199330329,1cyclictest0-21swapper/707:12:037
183104199330328,1cyclictest1801977-21kworker/7:107:41:027
183104199329328,1cyclictest1801977-21kworker/7:108:03:027
183104199329328,1cyclictest0-21swapper/712:31:027
183104199329328,1cyclictest0-21swapper/712:14:037
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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