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2026-05-13 - 03:49
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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 May 13, 2026 00:46:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
193602499357355,1cyclictest0-21swapper/020:25:020
193604999347345,1cyclictest0-21swapper/321:25:023
193604999346345,1cyclictest2220792-21kworker/3:100:11:013
193604999345344,1cyclictest2113304-21kworker/3:222:59:023
193604999345344,1cyclictest2094248-21kworker/3:222:19:023
193604999345344,1cyclictest0-21swapper/323:57:023
193604999344343,1cyclictest2113304-21kworker/3:222:53:023
193604999344343,1cyclictest0-21swapper/321:19:023
193604999344342,2cyclictest2113304-21kworker/3:223:31:023
193604999344341,2cyclictest2220792-21kworker/3:100:31:023
193604999343342,1cyclictest0-21swapper/321:10:023
193604999343341,1cyclictest0-21swapper/321:55:023
193603199343342,1cyclictest2020655-21kworker/1:222:49:021
193604999342341,1cyclictest2113304-21kworker/3:222:39:023
193604999342341,1cyclictest2085847-21kworker/3:022:23:023
193604999342341,1cyclictest0-21swapper/323:05:023
193604999342341,1cyclictest0-21swapper/322:14:023
193604999342341,1cyclictest0-21swapper/321:42:023
193604999342341,1cyclictest0-21swapper/300:08:023
193604999341340,1cyclictest2205611-21kworker/3:000:00:023
193604999341340,1cyclictest0-21swapper/320:18:023
193604999341339,1cyclictest2113304-21kworker/3:223:21:023
193604999341339,1cyclictest0-21swapper/321:21:023
193604999340339,1cyclictest0-21swapper/323:50:023
193604999340339,1cyclictest0-21swapper/323:50:013
193604999340338,1cyclictest0-21swapper/322:40:023
193603199340339,1cyclictest2020655-21kworker/1:222:31:021
193604999339338,1cyclictest1978992-21kworker/3:120:41:023
193604999339338,1cyclictest0-21swapper/323:42:023
193604999339337,1cyclictest2113304-21kworker/3:223:04:023
193604999339337,1cyclictest0-21swapper/322:48:023
193604999339337,1cyclictest0-21swapper/321:39:023
193604999339337,1cyclictest0-21swapper/319:25:023
193603199339337,1cyclictest0-21swapper/122:05:021
193603199339334,1cyclictest0-21swapper/122:18:021
193604999338337,1cyclictest2113304-21kworker/3:223:15:023
193604999338337,1cyclictest0-21swapper/323:10:023
193604999338336,1cyclictest0-21swapper/323:46:023
193604999338336,1cyclictest0-21swapper/322:00:023
193603199338337,1cyclictest2020655-21kworker/1:200:02:021
193604999337336,1cyclictest0-21swapper/323:26:023
193603199337336,1cyclictest2254139-21kworker/1:000:35:021
193603199337336,1cyclictest2020655-21kworker/1:222:41:021
193603199337336,1cyclictest2020655-21kworker/1:222:13:021
193603199337336,1cyclictest1969973-21kworker/1:021:23:021
193603199337335,1cyclictest2020655-21kworker/1:221:31:021
193604999336335,1cyclictest0-21swapper/322:34:013
193604999336335,1cyclictest0-21swapper/322:26:023
193604999336335,1cyclictest0-21swapper/322:26:013
193604999336335,1cyclictest0-21swapper/321:30:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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