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2026-04-08 - 21:43
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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, lowest P state: performance
Characteristics of the 50 highest latencies:
System rackcslot6.osadl.org (updated Wed Apr 08, 2026 12:46:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
208315299347346,1cyclictest2237189-21kworker/7:111:35:027
208315299347345,1cyclictest0-21swapper/711:01:027
208315299346345,1cyclictest2364879-21kworker/7:107:50:027
208315299346345,1cyclictest2086129-21kworker/7:208:27:037
208315299346344,1cyclictest0-21swapper/708:34:037
208314699346343,1cyclictest0-21swapper/611:28:026
208315299345344,1cyclictest2135072-21kworker/7:009:00:027
208315299345344,1cyclictest0-21swapper/709:30:027
208315299345344,1cyclictest0-21swapper/707:30:037
208315299345343,1cyclictest0-21swapper/712:37:027
208315299344343,1cyclictest2237189-21kworker/7:112:05:027
208315299344343,1cyclictest0-21swapper/710:45:027
208315299344343,1cyclictest0-21swapper/710:00:037
208315299344342,1cyclictest0-21swapper/710:42:027
208315299343342,1cyclictest0-21swapper/709:10:027
208315299342341,1cyclictest2364879-21kworker/7:107:17:037
208315299342341,1cyclictest2086129-21kworker/7:208:12:037
208315299342340,1cyclictest2237189-21kworker/7:111:59:027
208315299342340,1cyclictest2156129-21kworker/7:209:57:037
208315299342340,1cyclictest0-21swapper/711:26:027
208315299341340,1cyclictest0-21swapper/709:08:037
208315299341339,1cyclictest2364879-21kworker/7:107:48:027
208315299341339,1cyclictest2198257-21kworker/7:110:39:027
208315299341339,1cyclictest2156129-21kworker/7:210:09:037
208315299341339,1cyclictest0-21swapper/711:09:027
208315299341339,1cyclictest0-21swapper/708:41:027
208315299341339,1cyclictest0-21swapper/707:22:037
208315299340339,1cyclictest2135072-21kworker/7:008:57:027
208315299340339,1cyclictest0-21swapper/710:32:027
208315299340339,1cyclictest0-21swapper/710:28:037
208315299340339,1cyclictest0-21swapper/710:23:027
208315299340339,1cyclictest0-21swapper/710:17:037
208315299340339,1cyclictest0-21swapper/709:53:037
208315299340339,1cyclictest0-21swapper/709:53:027
208315299340339,1cyclictest0-21swapper/708:16:037
208315299340338,1cyclictest0-21swapper/710:11:027
208315299340338,1cyclictest0-21swapper/708:06:037
208315299339338,1cyclictest2237189-21kworker/7:112:24:027
208315299339338,1cyclictest2237189-21kworker/7:112:03:027
208315299339338,1cyclictest2237189-21kworker/7:111:47:037
208315299339338,1cyclictest2237189-21kworker/7:111:43:027
208315299339338,1cyclictest2213294-21kworker/7:010:51:027
208315299339338,1cyclictest2156129-21kworker/7:209:41:027
208315299339338,1cyclictest2135072-21kworker/7:008:46:027
208315299339338,1cyclictest0-21swapper/708:53:027
208315299339338,1cyclictest0-21swapper/708:38:027
208315299339338,1cyclictest0-21swapper/707:43:037
208315299339338,1cyclictest0-21swapper/707:28:037
208315299338337,1cyclictest2237189-21kworker/7:112:26:027
208315299338337,1cyclictest2237189-21kworker/7:111:53:037
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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