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2026-04-23 - 01:34
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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 Wed Apr 22, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
165109910706653413,53587cyclictest0-21swapper10:42:210
165109910669653429,53267cyclictest0-21swapper09:07:130
165109910666853454,53090cyclictest9-21ksoftirqd/011:13:400
165109910660753414,53193cyclictest0-21swapper12:29:320
165109910654053422,53118cyclictest0-21swapper10:59:160
165109910651753477,53040cyclictest0-21swapper09:19:270
165109910651753449,53068cyclictest0-21swapper11:37:170
165109910650553472,53033cyclictest0-21swapper12:35:030
165109910645853391,53005cyclictest16499-21cyclictest10:23:550
165109910645553447,53008cyclictest0-21swapper09:32:510
165109910645053400,53050cyclictest0-21swapper08:58:510
165109910644953446,53003cyclictest0-21swapper09:53:370
165109910644453396,53048cyclictest0-21swapper11:42:080
165109910641753415,53002cyclictest0-21swapper07:44:500
165109910639953439,52865cyclictest2272-21munin-node07:38:180
165109910639153434,52957cyclictest0-21swapper08:45:570
165109910633153430,52839cyclictest16499-21cyclictest09:43:540
165109910631853428,52824cyclictest0-21swapper09:04:130
165109910628353411,52808cyclictest9-21ksoftirqd/008:24:110
165109910624853410,52746cyclictest0-21swapper07:33:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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