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2026-01-11 - 16:56
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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 100 highest latencies:
System rackcslot6.osadl.org (updated Sun Jan 11, 2026 12:46:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
355222499381380,1cyclictest0-21swapper/412:39:024
355222499378376,1cyclictest0-21swapper/408:30:024
355222499377375,1cyclictest3712473-21kworker/4:012:05:024
355222499376375,1cyclictest3585882-21kworker/4:011:05:024
355222499374373,1cyclictest0-21swapper/409:47:024
355222499374372,1cyclictest3585882-21kworker/4:010:25:024
355222499373371,1cyclictest0-21swapper/409:37:024
355222499372371,1cyclictest3712473-21kworker/4:011:47:024
355222499372371,1cyclictest3585882-21kworker/4:009:29:024
355222499372371,1cyclictest0-21swapper/410:04:024
355222499372371,1cyclictest0-21swapper/410:04:024
355222499372371,1cyclictest0-21swapper/409:09:024
355222499372370,1cyclictest3561242-21kworker/4:107:39:024
355222499372370,1cyclictest0-21swapper/409:17:014
355222499371370,1cyclictest3585882-21kworker/4:010:17:024
355222499371370,1cyclictest3585882-21kworker/4:008:57:024
355222499371370,1cyclictest0-21swapper/409:01:024
355222499371370,1cyclictest0-21swapper/407:13:024
355222499371369,1cyclictest3585882-21kworker/4:010:13:024
355222499371369,1cyclictest3561242-21kworker/4:107:45:024
355222499371369,1cyclictest0-21swapper/412:25:024
355222499370369,1cyclictest3712473-21kworker/4:012:13:024
355222499370369,1cyclictest3585882-21kworker/4:010:37:024
355222499370369,1cyclictest0-21swapper/408:17:024
355222499370369,1cyclictest0-21swapper/408:07:024
355222499370368,1cyclictest3703246-21kworker/4:111:29:024
355222499370368,1cyclictest3585882-21kworker/4:010:45:024
355222499370368,1cyclictest3561242-21kworker/4:107:40:024
355222499370367,2cyclictest3585882-21kworker/4:010:31:024
355222499369368,1cyclictest3712473-21kworker/4:012:20:024
355222499369368,1cyclictest3712473-21kworker/4:011:51:024
355222499369367,1cyclictest0-21swapper/412:16:024
355222499368367,1cyclictest3585882-21kworker/4:009:21:024
355222499368366,1cyclictest3585882-21kworker/4:011:16:024
355222499368366,1cyclictest3585882-21kworker/4:010:57:024
355222499365364,1cyclictest3561242-21kworker/4:107:25:024
355222499365364,1cyclictest0-21swapper/411:55:024
355219399364360,2cyclictest0-21swapper/012:39:020
355222499362361,1cyclictest3585882-21kworker/4:010:09:024
355222499362361,1cyclictest3561242-21kworker/4:107:30:024
355222499362361,1cyclictest0-21swapper/408:50:024
355222499361359,1cyclictest0-21swapper/408:13:024
355222499361358,2cyclictest3585882-21kworker/4:008:39:024
355222499360359,1cyclictest3585882-21kworker/4:010:41:024
355222499360359,1cyclictest3585882-21kworker/4:009:44:024
355222499359358,1cyclictest3561242-21kworker/4:107:53:024
355222499359358,1cyclictest0-21swapper/412:03:024
355222499359358,1cyclictest0-21swapper/408:29:024
355222499359357,1cyclictest3824664-21kworker/4:007:16:024
355222499359357,1cyclictest0-21swapper/411:11:024
355222499359357,1cyclictest0-21swapper/411:03:024
355219399359357,1cyclictest3521974-21kworker/0:209:35:020
355222499358357,1cyclictest3703246-21kworker/4:111:32:024
355222499358357,1cyclictest3703246-21kworker/4:111:32:024
355222499358357,1cyclictest3585882-21kworker/4:009:12:024
355222499358356,2cyclictest3585882-21kworker/4:010:24:024
355222499358356,1cyclictest3585882-21kworker/4:008:46:024
355219399358356,1cyclictest3521974-21kworker/0:208:30:020
355219399357355,1cyclictest0-21swapper/012:05:020
355219399356355,1cyclictest0-21swapper/011:05:010
355223199354351,2cyclictest0-21swapper/512:31:025
355219399354353,1cyclictest3521974-21kworker/0:209:47:020
355219399354353,1cyclictest0-21swapper/010:25:020
355219399354352,1cyclictest0-21swapper/009:29:020
355223199353352,1cyclictest3646276-21kworker/5:211:33:025
355223199353352,1cyclictest3646276-21kworker/5:211:33:025
355219399352351,1cyclictest3521974-21kworker/0:210:04:020
355219399352351,1cyclictest3521974-21kworker/0:210:04:020
355219399352351,1cyclictest0-21swapper/011:47:020
355219399352351,1cyclictest0-21swapper/008:57:020
355219399352350,1cyclictest3521974-21kworker/0:209:17:020
355219399352350,1cyclictest3521974-21kworker/0:209:09:020
355219399352350,1cyclictest3521974-21kworker/0:207:13:020
355219399352350,1cyclictest0-21swapper/010:17:020
355219399351350,1cyclictest3521974-21kworker/0:209:01:010
355219399351350,1cyclictest0-21swapper/010:37:020
355219399351350,1cyclictest0-21swapper/007:37:020
355219399351349,1cyclictest3521974-21kworker/0:208:07:020
355219399351349,1cyclictest0-21swapper/011:29:010
355219399351349,1cyclictest0-21swapper/010:13:020
355219399351349,1cyclictest0-21swapper/007:45:020
355219399350349,1cyclictest0-21swapper/012:20:020
355219399350349,1cyclictest0-21swapper/012:13:020
355219399350349,1cyclictest0-21swapper/011:51:020
355219399350348,1cyclictest3737272-21kworker/0:112:25:010
355219399350348,1cyclictest3521974-21kworker/0:208:17:020
355219399349348,1cyclictest0-21swapper/010:45:020
355219399349348,1cyclictest0-21swapper/009:21:020
355219399349348,1cyclictest0-21swapper/007:40:020
355223199348347,1cyclictest3646276-21kworker/5:211:25:025
355219399348347,1cyclictest0-21swapper/010:31:020
355219399348346,1cyclictest3521974-21kworker/0:212:16:020
355223199347346,1cyclictest3601160-21kworker/5:008:41:025
355223199347345,1cyclictest97550irq/166-enp0s3109:05:025
355219399347346,1cyclictest3521974-21kworker/0:210:57:020
355219399347346,1cyclictest0-21swapper/011:16:020
355223199346345,1cyclictest3601160-21kworker/5:010:03:025
355223199346345,1cyclictest3601160-21kworker/5:010:03:025
355223199346344,1cyclictest97550irq/166-enp0s3108:01:025
355223199345344,1cyclictest3768624-21kworker/5:107:41:025
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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