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2026-07-21 - 15:59
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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
Characteristics of the 10 highest latencies:
System rack6slot6 (updated Tue Jul 21, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
237919910758253459,54026cyclictest1907-21snmpd08:58:410
237919910683953412,53336cyclictest0-21swapper08:42:260
237919910679653452,53253cyclictest0-21swapper09:08:240
237919910671553392,53257cyclictest0-21swapper10:49:330
237919910671353423,53195cyclictest2099-21runrttasks08:17:290
237919910667753447,53134cyclictest24029-21ssh09:31:100
237919910663853416,53157cyclictest9-21ksoftirqd/010:58:550
237919910662453410,53150cyclictest9-21ksoftirqd/009:52:560
237919910660053415,53094cyclictest9-21ksoftirqd/012:12:270
237919910658153478,53103cyclictest0-21swapper09:20:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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