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2026-03-22 - 09:29
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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 Sun Mar 22, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11019910676353378,53291cyclictest0-21swapper21:28:000
11019910663453464,53108cyclictest9-21ksoftirqd/022:04:110
11019910658853444,53079cyclictest0-21swapper19:30:570
11019910650953474,53035cyclictest0-21swapper23:51:420
11019910645853408,53050cyclictest0-21swapper21:02:130
11019910645453450,53004cyclictest0-21swapper22:48:440
11019910644753401,53046cyclictest0-21swapper00:06:360
11019910627953401,52759cyclictest0-21swapper23:25:040
11019910624953479,52770cyclictest0-21swapper20:15:290
11019910622553473,52752cyclictest0-21swapper21:16:370
11019910622253414,52773cyclictest0-21swapper19:56:540
11019910619053474,52716cyclictest0-21swapper22:11:130
11019910614853397,52751cyclictest0-21swapper23:47:100
11019910614553435,52710cyclictest0-21swapper20:02:460
11019910613753430,52707cyclictest0-21swapper23:08:290
11019910613753391,52746cyclictest0-21swapper20:26:430
11019910613453435,52699cyclictest0-21swapper21:35:420
11019910564752957,52688cyclictest891-21ssh22:38:410
11019910502652917,52107cyclictest0-21swapper00:10:570
1101995359624,53452cyclictest0-21swapper20:45:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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