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2026-04-30 - 18:49
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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 50 highest latencies:
System rackcslot6.osadl.org (updated Thu Apr 30, 2026 12:46:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
169246899381379,1cyclictest1775378-21kworker/7:009:46:027
1692468993810,380cyclictest0-21swapper/708:22:027
1692468993810,380cyclictest0-21swapper/708:11:027
1692468993810,380cyclictest0-21swapper/708:00:027
169246899380379,1cyclictest1797688-21kworker/7:311:48:037
169246899380379,1cyclictest1797688-21kworker/7:311:37:027
169246899380379,1cyclictest1797688-21kworker/7:310:11:027
169246899380379,1cyclictest1775378-21kworker/7:010:00:027
169246899380379,1cyclictest1775378-21kworker/7:009:32:027
169246899380379,1cyclictest1691547-21kworker/7:007:56:027
169246899380379,1cyclictest1691547-21kworker/7:007:36:027
169246899380379,1cyclictest1691547-21kworker/7:007:33:027
169246899380379,1cyclictest1691547-21kworker/7:007:26:037
169246899380378,1cyclictest1747201-21kworker/7:109:08:027
1692468993800,379cyclictest0-21swapper/712:16:037
1692468993800,379cyclictest0-21swapper/708:41:027
1692468993800,379cyclictest0-21swapper/707:44:027
1692468993800,379cyclictest0-21swapper/707:44:027
1692468993800,1cyclictest0-21swapper/708:38:027
169246899379378,1cyclictest1853542-21kworker/7:112:03:037
169246899379378,1cyclictest1797688-21kworker/7:310:39:027
169246899379378,1cyclictest1797688-21kworker/7:310:27:027
169246899379378,1cyclictest1797688-21kworker/7:310:16:027
169246899379378,1cyclictest1797688-21kworker/7:310:09:037
169246899379378,1cyclictest1775378-21kworker/7:009:52:027
169246899379378,1cyclictest1738037-21kworker/7:208:34:027
169246899379378,1cyclictest1691547-21kworker/7:008:17:027
169246899379378,1cyclictest1691547-21kworker/7:007:18:027
169246899379378,1cyclictest0-21swapper/709:28:027
169246899379377,1cyclictest1747201-21kworker/7:109:18:027
169246899378377,1cyclictest1797688-21kworker/7:311:57:037
169246899378377,1cyclictest1797688-21kworker/7:311:26:037
169246899378377,1cyclictest1797688-21kworker/7:310:32:027
169246899378377,1cyclictest1747201-21kworker/7:109:13:037
169246899378377,1cyclictest1747201-21kworker/7:109:13:027
169246899378377,1cyclictest1747201-21kworker/7:108:52:027
169246899378377,1cyclictest0-21swapper/709:21:027
169246899377376,1cyclictest1797688-21kworker/7:311:14:037
169246899377376,1cyclictest1691547-21kworker/7:007:51:027
169246899377376,1cyclictest0-21swapper/711:31:027
169246899377376,1cyclictest0-21swapper/709:44:027
169246899377376,1cyclictest0-21swapper/709:36:027
169244699349347,1cyclictest0-21swapper/407:15:034
169244699346345,1cyclictest0-21swapper/411:45:034
169244699343342,1cyclictest1950440-21kworker/4:007:20:034
169244699343342,1cyclictest0-21swapper/408:55:034
169244699341340,1cyclictest0-21swapper/410:06:024
169244699339338,1cyclictest0-21swapper/411:50:024
169244699338336,1cyclictest0-21swapper/411:20:024
169244699336335,1cyclictest0-21swapper/411:00:034
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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