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2026-03-20 - 12:55
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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 Fri Mar 20, 2026 00:46:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
345104799381379,1cyclictest3677429-21kworker/4:023:28:024
345104799381379,1cyclictest3518030-21kworker/4:121:15:024
345103499381379,1cyclictest3628372-21kworker/2:200:02:022
345103499381379,1cyclictest3523745-21kworker/2:322:06:022
345103499381379,1cyclictest3523745-21kworker/2:321:43:022
345103499381379,1cyclictest3523745-21kworker/2:321:14:032
345104799380379,1cyclictest3677429-21kworker/4:023:58:024
345104799380379,1cyclictest3518030-21kworker/4:123:03:024
345104799380379,1cyclictest3518030-21kworker/4:122:42:024
345104799380379,1cyclictest3518030-21kworker/4:122:24:024
345104799380378,1cyclictest3753959-21kworker/4:000:38:034
345104799380378,1cyclictest3627144-21kworker/4:220:20:024
345104799380378,1cyclictest3518030-21kworker/4:121:20:024
3451034993800,379cyclictest0-21swapper/223:32:022
3451034993800,379cyclictest0-21swapper/222:56:032
3451034993800,1cyclictest0-21swapper/222:10:022
345105499379378,1cyclictest3481926-21kworker/5:021:04:025
345104099379378,1cyclictest3571392-21kworker/3:123:06:023
345103499379378,1cyclictest3628372-21kworker/2:223:53:022
345103499379378,1cyclictest3628372-21kworker/2:223:16:022
345103499379378,1cyclictest3523745-21kworker/2:321:37:022
345103499379378,1cyclictest0-21swapper/220:50:022
345103499379377,1cyclictest3628372-21kworker/2:222:53:022
345104799378376,1cyclictest3627144-21kworker/4:220:46:024
345104799378376,1cyclictest3627144-21kworker/4:220:46:024
345103499378377,1cyclictest3628372-21kworker/2:222:44:022
345103499378377,1cyclictest3591254-21kworker/2:122:38:032
345103499378376,1cyclictest3760135-21kworker/2:219:30:032
345104799377376,1cyclictest3627144-21kworker/4:220:06:024
345104799377376,1cyclictest3518030-21kworker/4:121:58:024
345104799377375,1cyclictest3627144-21kworker/4:219:32:024
345104799377375,1cyclictest0-21swapper/419:56:024
345103499377376,1cyclictest3591254-21kworker/2:122:20:022
345103499377376,1cyclictest0-21swapper/220:40:022
345103499377376,1cyclictest0-21swapper/219:50:022
345104799376375,1cyclictest3627144-21kworker/4:220:31:024
345104799376374,1cyclictest0-21swapper/419:18:024
345103499376374,1cyclictest3760135-21kworker/2:219:36:032
345104799375374,1cyclictest3627144-21kworker/4:220:36:024
345104799375374,1cyclictest3627144-21kworker/4:219:14:024
345104099375372,2cyclictest3515018-21kworker/3:221:47:023
345103499375374,1cyclictest3760135-21kworker/2:220:26:022
345103499375374,1cyclictest3760135-21kworker/2:219:26:022
345103499375373,1cyclictest3760135-21kworker/2:220:18:022
345104799374373,1cyclictest3627144-21kworker/4:220:58:024
345104799374372,1cyclictest3627144-21kworker/4:219:24:034
345104799374372,1cyclictest3627144-21kworker/4:219:24:024
345104099374372,1cyclictest3571392-21kworker/3:123:33:033
345103499374373,1cyclictest3760135-21kworker/2:221:01:022
345104799373372,1cyclictest3627144-21kworker/4:219:27:034
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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