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2026-01-11 - 13:38
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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 20 highest latencies:
System rack6slot6 (updated Sun Jan 11, 2026 00:43:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2373799209880105400,104478cyclictest0-21swapper21:40:190
237379910693453397,53414cyclictest1397-21rm00:09:310
237379910685553424,53339cyclictest9-21ksoftirqd/020:20:460
237379910671953467,53252cyclictest0-21swapper23:08:040
237379910669753401,53232cyclictest5162-21kworker/0:223:28:200
237379910661253438,53174cyclictest0-21swapper23:40:330
237379910658853442,53146cyclictest0-21swapper23:39:430
237379910657253429,53143cyclictest0-21swapper22:32:240
237379910654153383,53067cyclictest0-21swapper20:35:200
237379910652053416,53039cyclictest0-21swapper21:08:290
237379910650253400,53102cyclictest0-21swapper22:55:000
237379910646553450,53015cyclictest0-21swapper19:40:440
237379910645753406,53051cyclictest0-21swapper21:46:400
237379910644953400,53049cyclictest0-21swapper19:58:090
237379910644153472,52969cyclictest0-21swapper21:53:120
237379910644053439,53001cyclictest0-21swapper19:35:530
237379910643553466,52969cyclictest0-21swapper23:18:170
237379910641353422,52991cyclictest0-21swapper21:21:430
237379910634653402,52879cyclictest134850irq/9-eth022:21:000
237379910632253449,52873cyclictest0-21swapper19:31:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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