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2026-06-28 - 13:10
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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 Jun 28, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29489910696853465,53439cyclictest20707-1kworker/u3:022:31:060
29489910675353477,53276cyclictest0-21swapper20:57:290
29489910663253418,53125cyclictest5350irq/9-uhci_hcd:23:42:260
29489910662153463,53158cyclictest0-21swapper21:44:120
29489910655053387,53098cyclictest0-21swapper22:23:330
29489910652153478,53043cyclictest0-21swapper23:20:300
29489910650953473,53036cyclictest0-21swapper19:49:390
29489910650753472,53035cyclictest0-21swapper00:24:180
29489910650553470,53035cyclictest0-21swapper20:33:120
29489910650353472,53031cyclictest0-21swapper23:54:200
29489910648653458,53028cyclictest0-21swapper00:04:330
29489910646853455,53013cyclictest0-21swapper21:24:360
29489910645853450,53008cyclictest0-21swapper20:52:570
29489910644653401,53045cyclictest0-21swapper20:15:370
29489910641853428,52990cyclictest0-21swapper23:49:480
29489910641153427,52984cyclictest0-21swapper00:10:440
29489910640053419,52981cyclictest0-21swapper22:25:440
29489910624253388,52762cyclictest0-21swapper19:52:200
29489910623253479,52753cyclictest0-21swapper00:16:360
29489910622253474,52748cyclictest0-21swapper20:39:440
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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