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2025-11-17 - 09:38
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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 Mon Nov 17, 2025 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
97339910729253387,53784cyclictest1744-21hald22:52:430
97339910703253410,53528cyclictest0-21swapper23:33:340
97339910691553393,53522cyclictest0-21swapper22:11:010
97339910657253465,53107cyclictest0-21swapper19:57:420
97339910656353460,53103cyclictest0-21swapper20:32:320
97339910651253473,53039cyclictest0-21swapper20:22:390
97339910650053411,53089cyclictest0-21swapper22:34:270
97339910648653465,53021cyclictest0-21swapper23:41:270
97339910646653455,53011cyclictest0-21swapper20:09:560
97339910645953372,53022cyclictest3950irq/9-acpi22:56:240
97339910644853397,53051cyclictest0-21swapper00:30:510
97339910644453437,53007cyclictest0-21swapper23:53:500
97339910643853397,53041cyclictest0-21swapper21:48:240
97339910643053432,52998cyclictest0-21swapper19:47:390
97339910642753461,52966cyclictest0-21swapper19:41:070
97339910638653404,52982cyclictest0-21swapper21:01:000
97339910634253477,52804cyclictest0-21swapper20:42:450
97339910625653380,52811cyclictest9-21ksoftirqd/021:56:360
97339910621153473,52738cyclictest0-21swapper21:16:450
97339910621153467,52744cyclictest0-21swapper19:52:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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