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2026-04-06 - 21:21
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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 Apr 06, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2604199210877105402,105473cyclictest0-21swapper09:57:410
260419910714653488,53560cyclictest15801-21ssh09:15:290
260419910708953396,53573cyclictest7632-21ssh09:51:190
260419910687853427,53451cyclictest0-21swapper10:52:070
260419910680753388,53419cyclictest1907-21snmpd08:37:380
260419910676753380,53324cyclictest3950irq/9-acpi10:47:050
260419910671253473,53239cyclictest0-21swapper11:26:260
260419910669353470,53133cyclictest9-21ksoftirqd/011:05:300
260419910662453427,53197cyclictest0-21swapper11:30:180
260419910653653476,53060cyclictest0-21swapper08:41:490
260419910652553466,53059cyclictest0-21swapper08:06:090
260419910652353476,53047cyclictest0-21swapper12:09:490
260419910650753477,53030cyclictest0-21swapper11:51:140
260419910650653471,53035cyclictest0-21swapper07:55:060
260419910650053427,53073cyclictest0-21swapper07:34:400
260419910649853396,53102cyclictest0-21swapper07:54:050
260419910643053475,52955cyclictest0-21swapper07:22:160
260419910642153472,52949cyclictest0-21swapper08:57:340
260419910641053424,52986cyclictest0-21swapper10:36:520
260419910638253490,52827cyclictest134850irq/9-eth012:32:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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