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2025-11-01 - 16:52
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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 20 highest latencies:
System rack6slot5.osadl.org (updated Sat Nov 01, 2025 12:43:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2126399109225503,5414cyclictest32511-21kworker/0:212:10:310
2126399107505420,5319cyclictest32762-21kworker/0:210:11:380
212639999795327,4647cyclictest10387-21kworker/0:108:42:280
212639998075142,4654cyclictest27112-21kworker/0:211:05:030
212639997425104,4627cyclictest7765-21kworker/0:011:42:190
212639996845192,4489cyclictest10387-21kworker/0:107:13:510
212639994664778,4684cyclictest32511-21kworker/0:211:58:220
212639994444863,4570cyclictest19730-21kworker/0:010:44:400
212639993644810,4543cyclictest19730-21kworker/0:010:48:500
212639992944864,4379cyclictest26533-21kworker/0:009:57:380
212639992604778,4471cyclictest19218-21kworker/0:109:42:280
212639992074654,4542cyclictest9910-21kworker/0:009:26:340
212639989844550,4430cyclictest32762-21kworker/0:210:07:230
212639989794638,4330cyclictest10387-21kworker/0:108:46:200
212639989354614,4309cyclictest12739-21kworker/0:209:38:120
212639989304566,4313cyclictest10387-21kworker/0:107:25:130
212639988094553,4245cyclictest10387-21kworker/0:107:50:170
212639988084454,4343cyclictest32762-21kworker/0:210:15:370
212639987644529,4224cyclictest19218-21kworker/0:109:46:230
212639987294519,4205cyclictest10387-21kworker/0:108:14:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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