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2026-04-30 - 18:14
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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 Thu Apr 30, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
178649910691853484,53337cyclictest18342-21ssh11:09:370
178649910666653420,53152cyclictest0-21swapper11:13:080
178649910666253463,53199cyclictest17863-21cyclictest12:11:450
178649910655953452,53107cyclictest0-21swapper11:36:050
178649910651853437,53081cyclictest0-21swapper10:48:410
178649910651253476,53036cyclictest0-21swapper10:34:470
178649910649553376,53096cyclictest17106-21ssh10:19:530
178649910648053419,53061cyclictest0-21swapper10:59:140
178649910647553456,53019cyclictest0-21swapper07:12:490
178649910646053408,53052cyclictest0-21swapper07:17:400
178649910645353404,53049cyclictest0-21swapper11:32:240
178649910644053446,52994cyclictest0-21swapper09:19:350
178649910642253430,52992cyclictest0-21swapper09:21:060
178649910630853413,52830cyclictest16096-21kworker/0:408:23:390
178649910629653477,52819cyclictest0-21swapper08:38:040
178649910626153387,52808cyclictest0-21swapper08:48:270
178649910625953390,52803cyclictest9-21ksoftirqd/012:37:430
178649910625753412,52750cyclictest0-21swapper07:58:320
178649910622653433,52793cyclictest0-21swapper07:48:090
178649910619953462,52737cyclictest0-21swapper08:27:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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