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2026-04-20 - 22:57
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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 20, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
96789910723153478,53662cyclictest9-21ksoftirqd/012:13:270
96789910692253435,53421cyclictest134850irq/9-eth010:00:290
96789910658353461,53122cyclictest0-21swapper08:09:170
96789910656253455,53107cyclictest0-21swapper12:27:410
96789910654753455,53092cyclictest0-21swapper09:33:310
96789910654153386,53090cyclictest0-21swapper11:06:380
96789910649453442,53052cyclictest0-21swapper07:48:210
96789910648953466,53023cyclictest0-21swapper08:41:260
96789910647753400,53077cyclictest0-21swapper11:36:070
96789910647653404,53072cyclictest0-21swapper10:07:310
96789910646153445,53016cyclictest0-21swapper11:02:470
96789910644453400,53044cyclictest0-21swapper12:07:360
96789910643953441,52998cyclictest0-21swapper09:56:280
96789910643853441,52997cyclictest0-21swapper10:31:180
96789910642153433,52988cyclictest0-21swapper11:18:210
96789910640853430,52978cyclictest0-21swapper10:37:100
96789910621953459,52760cyclictest0-21swapper07:35:270
96789910621753471,52746cyclictest0-21swapper09:06:230
96789910618853460,52728cyclictest0-21swapper07:22:440
96789910617653455,52721cyclictest0-21swapper08:31:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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