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2026-08-05 - 15:34
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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 Wed Aug 05, 2026 00:46:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
310636199392390,2cyclictest372257-21kworker/5:221:11:025
310636199391390,1cyclictest0-21swapper/522:45:025
310636199391390,1cyclictest0-21swapper/522:45:025
310636199390388,1cyclictest372257-21kworker/5:221:25:025
310636199390388,1cyclictest0-21swapper/521:31:025
3106361993900,389cyclictest0-21swapper/520:40:025
310636199389386,2cyclictest3219457-21kworker/5:122:11:025
310636199387385,1cyclictest0-21swapper/521:16:025
310636199386384,1cyclictest0-21swapper/519:41:025
3106361993860,1cyclictest372257-21kworker/5:220:07:025
310637499384382,1cyclictest0-21swapper/720:35:027
310636199384382,1cyclictest3308969-21kworker/5:000:00:025
310636199384382,1cyclictest0-21swapper/521:43:025
310636199384382,1cyclictest0-21swapper/519:54:025
310636199384382,1cyclictest0-21swapper/519:54:025
310636199383382,1cyclictest0-21swapper/521:45:025
310636199383381,1cyclictest3308969-21kworker/5:023:28:015
310636199383381,1cyclictest0-21swapper/520:37:025
310636199382381,1cyclictest3308969-21kworker/5:023:00:025
310636199382380,2cyclictest3308969-21kworker/5:023:12:025
310636199382380,1cyclictest0-21swapper/519:59:025
310636199381379,1cyclictest3219457-21kworker/5:121:52:025
3106361993810,380cyclictest372257-21kworker/5:219:21:025
3106361993810,380cyclictest0-21swapper/521:23:025
3106361993800,1cyclictest372257-21kworker/5:219:31:025
310637499379377,1cyclictest0-21swapper/700:33:027
3106361993790,1cyclictest3219457-21kworker/5:122:39:025
310636199378377,1cyclictest3219457-21kworker/5:122:06:025
310636199378376,2cyclictest3308969-21kworker/5:023:34:025
310636199378376,1cyclictest3308969-21kworker/5:000:20:025
310636199378376,1cyclictest3308969-21kworker/5:000:17:025
310636199378376,1cyclictest3219457-21kworker/5:122:53:025
310636199378376,1cyclictest3219457-21kworker/5:122:30:025
310636199378376,1cyclictest0-21swapper/521:35:025
3106361993780,378cyclictest372257-21kworker/5:220:29:025
310636199377376,1cyclictest3308969-21kworker/5:023:45:025
310636199377375,1cyclictest372257-21kworker/5:221:01:025
310636199377374,2cyclictest0-21swapper/519:36:025
3106361993770,1cyclictest372257-21kworker/5:220:23:025
310636199376375,1cyclictest3219457-21kworker/5:122:22:025
310636199376375,1cyclictest0-21swapper/519:49:025
310636199376374,1cyclictest372257-21kworker/5:220:45:025
310636199375373,1cyclictest0-21swapper/519:26:025
310636199374373,1cyclictest3308969-21kworker/5:000:05:025
310636199374373,1cyclictest3308969-21kworker/5:000:05:025
310636199374373,1cyclictest0-21swapper/521:07:025
310636199374372,1cyclictest0-21swapper/520:51:025
310636199373372,1cyclictest0-21swapper/520:03:025
310637499372371,1cyclictest3106208-21kworker/7:221:22:027
310637499372371,1cyclictest0-21swapper/723:24:027
310637499371370,1cyclictest0-21swapper/720:17:027
310637499371369,1cyclictest0-21swapper/719:51:027
310637499371369,1cyclictest0-21swapper/719:51:027
310636199371370,1cyclictest372257-21kworker/5:220:58:025
310636199371370,1cyclictest372257-21kworker/5:220:13:025
310636199371370,1cyclictest3308969-21kworker/5:023:20:025
310637499370369,1cyclictest3218822-21kworker/7:021:56:027
310637499369368,1cyclictest0-21swapper/723:07:027
310637499369367,1cyclictest0-21swapper/723:41:027
310636199369368,1cyclictest3308969-21kworker/5:023:57:015
310637499366364,1cyclictest0-21swapper/700:36:027
310636199366365,1cyclictest3308969-21kworker/5:023:52:025
310637499365364,1cyclictest3218822-21kworker/7:022:40:027
310636199365363,1cyclictest3219457-21kworker/5:122:55:025
310637499364362,1cyclictest3218822-21kworker/7:023:51:027
310637499364362,1cyclictest0-21swapper/722:54:027
310637499364362,1cyclictest0-21swapper/722:46:027
310637499364362,1cyclictest0-21swapper/722:46:027
310637499363362,1cyclictest3218822-21kworker/7:021:53:027
310637499363362,1cyclictest0-21swapper/720:06:027
310637499362361,1cyclictest0-21swapper/721:14:027
310637499362361,1cyclictest0-21swapper/720:26:027
310637499361359,1cyclictest3218822-21kworker/7:021:44:027
310636199361359,1cyclictest372257-21kworker/5:220:19:025
310636199361359,1cyclictest372257-21kworker/5:219:12:025
310637499360359,1cyclictest3218822-21kworker/7:023:10:027
310637499360359,1cyclictest3106208-21kworker/7:221:26:027
310637499360358,1cyclictest3106208-21kworker/7:220:53:027
310637499360358,1cyclictest3106208-21kworker/7:220:21:027
310637499360358,1cyclictest3106208-21kworker/7:219:11:027
310637499359358,1cyclictest0-21swapper/700:25:027
310637499359358,1cyclictest0-21swapper/700:21:027
310637499359357,1cyclictest3106208-21kworker/7:221:09:027
310637499358357,1cyclictest0-21swapper/722:29:027
310637499358356,1cyclictest3106208-21kworker/7:220:33:027
310637499356354,1cyclictest3106208-21kworker/7:220:49:027
310637499355354,1cyclictest3106208-21kworker/7:220:59:027
310637499355354,1cyclictest0-21swapper/721:19:027
310637499355353,1cyclictest3218822-21kworker/7:022:56:027
310637499354353,1cyclictest0-21swapper/723:26:027
310637499354353,1cyclictest0-21swapper/721:49:027
310637499354352,1cyclictest3218822-21kworker/7:022:20:027
310637499353351,1cyclictest3218822-21kworker/7:023:35:027
310637499352351,1cyclictest0-21swapper/723:18:027
310637499352351,1cyclictest0-21swapper/719:25:027
310637499352350,1cyclictest3218822-21kworker/7:000:15:027
310637499351350,1cyclictest0-21swapper/719:15:037
310637499351349,1cyclictest0-21swapper/720:11:027
310637499350349,1cyclictest0-21swapper/719:56:027
310637499350349,1cyclictest0-21swapper/719:37:027
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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