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2026-05-19 - 03:21
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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 Tue May 19, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
872399209889105344,104542cyclictest21465-21ssh22:35:510
87239910758053455,54003cyclictest18559-21ssh23:19:540
87239910749753425,53974cyclictest2065-21crond20:16:010
87239910733353459,53778cyclictest26027-21diskmemload22:41:530
87239910699653472,53458cyclictest134850irq/9-eth021:55:400
87239910689453461,53343cyclictest30533-21kworker/0:200:12:490
87239910670753454,53162cyclictest0-21swapper20:52:210
87239910668053440,53150cyclictest15914-21kworker/0:300:05:470
87239910666453447,53153cyclictest8716-21cyclictest20:25:340
87239910662453432,53192cyclictest0-21swapper20:47:400
87239910657353387,53119cyclictest0-21swapper21:29:220
87239910655253445,53107cyclictest0-21swapper22:23:080
87239910651353426,53087cyclictest0-21swapper21:03:040
87239910650553473,53032cyclictest0-21swapper23:29:170
87239910645753447,53010cyclictest0-21swapper20:44:590
87239910645753406,53051cyclictest0-21swapper23:09:210
87239910645353474,52979cyclictest0-21swapper00:28:140
87239910644753401,53046cyclictest0-21swapper21:51:280
87239910644253439,53003cyclictest0-21swapper23:41:000
87239910644153446,52995cyclictest0-21swapper19:44:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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