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2026-03-30 - 14:58
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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 Mon Mar 30, 2026 00:46:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2775558993810,380cyclictest0-21swapper/222:35:022
2775558993810,380cyclictest0-21swapper/220:10:032
2775558993810,380cyclictest0-21swapper/200:30:022
2775558993810,380cyclictest0-21swapper/200:30:022
277555899380379,1cyclictest2746152-21kworker/2:119:20:022
277555899380378,1cyclictest2824535-21kworker/2:020:54:022
277555899380378,1cyclictest2791322-21kworker/2:219:53:022
2775558993800,379cyclictest0-21swapper/220:40:022
2775558993800,379cyclictest0-21swapper/220:01:022
2775558993800,379cyclictest0-21swapper/219:55:022
2775558993800,379cyclictest0-21swapper/200:28:022
2775558993800,1cyclictest0-21swapper/223:40:022
277555899379378,1cyclictest2824535-21kworker/2:021:07:022
277555899379378,1cyclictest2803487-21kworker/2:120:28:022
277555899379378,1cyclictest2746152-21kworker/2:119:27:022
277555899378377,1cyclictest2803487-21kworker/2:120:06:022
277555899378377,1cyclictest2746152-21kworker/2:119:18:022
277555899377376,1cyclictest0-21swapper/220:59:022
277555899377376,1cyclictest0-21swapper/220:32:022
277555899377376,1cyclictest0-21swapper/219:42:032
277559899367365,1cyclictest3075461-21kworker/7:100:27:027
277556699365364,1cyclictest0-21swapper/300:27:023
277559899363362,1cyclictest2884508-21kworker/7:022:39:027
277556699362361,1cyclictest0-21swapper/322:39:023
277557699360357,2cyclictest2788430-21kworker/4:022:36:024
277559899358357,1cyclictest0-21swapper/721:25:037
277556699356355,1cyclictest2845596-21kworker/3:221:25:023
277559899355354,1cyclictest0-21swapper/700:23:027
277559899354353,1cyclictest0-21swapper/722:48:027
277559899354353,1cyclictest0-21swapper/700:00:027
277559899354352,1cyclictest0-21swapper/723:25:027
277559899354351,2cyclictest2884508-21kworker/7:022:26:027
277556699354353,1cyclictest2845596-21kworker/3:200:23:023
277556699354352,1cyclictest2845596-21kworker/3:222:48:023
277559899353352,1cyclictest0-21swapper/723:59:027
277559899353352,1cyclictest0-21swapper/700:12:027
277559899353351,2cyclictest2734023-21kworker/7:121:21:027
277559899352351,1cyclictest0-21swapper/722:09:027
277556699352351,1cyclictest2845596-21kworker/3:200:00:023
277556699352350,1cyclictest2845596-21kworker/3:223:59:023
277559899351350,1cyclictest2884508-21kworker/7:022:51:027
277559899351350,1cyclictest2884508-21kworker/7:021:55:027
277559899351350,1cyclictest0-21swapper/723:12:027
277559899351350,1cyclictest0-21swapper/723:12:027
277559899351349,2cyclictest2734023-21kworker/7:121:18:027
277559899351349,1cyclictest3075461-21kworker/7:100:36:027
277559899351349,1cyclictest2884508-21kworker/7:022:42:027
277559899351348,2cyclictest2884508-21kworker/7:023:06:037
277556699351350,1cyclictest2845596-21kworker/3:223:25:023
277556699351350,1cyclictest2845596-21kworker/3:200:12:023
277556699351350,1cyclictest0-21swapper/321:21:023
277559899350349,1cyclictest2884508-21kworker/7:022:18:037
277559899350349,1cyclictest2884508-21kworker/7:022:12:037
277559899350349,1cyclictest2884508-21kworker/7:022:02:027
277559899350349,1cyclictest0-21swapper/721:38:027
277559899350349,1cyclictest0-21swapper/700:17:027
277556699350349,1cyclictest2845596-21kworker/3:222:09:023
277556699350349,1cyclictest0-21swapper/322:26:023
277556699350348,1cyclictest0-21swapper/322:18:023
277559899349348,1cyclictest2999203-21kworker/7:123:16:027
277559899349348,1cyclictest2884508-21kworker/7:022:56:027
277559899349348,1cyclictest0-21swapper/723:23:027
277559899349348,1cyclictest0-21swapper/721:06:027
277559899349347,1cyclictest0-21swapper/721:45:027
277559899349347,1cyclictest0-21swapper/700:34:027
277559899349347,1cyclictest0-21swapper/700:34:027
277556699349348,1cyclictest2845596-21kworker/3:223:12:023
277556699349348,1cyclictest2845596-21kworker/3:223:12:023
277556699349348,1cyclictest0-21swapper/322:51:023
277556699349348,1cyclictest0-21swapper/322:42:023
277556699349348,1cyclictest0-21swapper/321:55:023
277556699349348,1cyclictest0-21swapper/300:36:023
277556699349347,1cyclictest0-21swapper/321:18:023
277559899348347,1cyclictest2734023-21kworker/7:119:25:037
277559899348347,1cyclictest0-21swapper/723:46:027
277559899348347,1cyclictest0-21swapper/722:24:027
277559899348347,1cyclictest0-21swapper/720:25:027
277559899348347,1cyclictest0-21swapper/719:48:027
277559899348346,1cyclictest2884508-21kworker/7:023:03:027
277557699348347,1cyclictest0-21swapper/423:02:024
277556699348347,1cyclictest2845596-21kworker/3:221:38:023
277556699348347,1cyclictest2845596-21kworker/3:200:17:023
277556699348347,1cyclictest0-21swapper/323:16:023
277556699348347,1cyclictest0-21swapper/323:06:023
277556699348347,1cyclictest0-21swapper/322:56:023
277556699348347,1cyclictest0-21swapper/322:12:023
277556699348347,1cyclictest0-21swapper/322:02:023
277556699348346,2cyclictest2845596-21kworker/3:221:45:033
277559899347346,1cyclictest2999203-21kworker/7:123:35:027
277559899347346,1cyclictest0-21swapper/721:13:027
277559899347346,1cyclictest0-21swapper/719:43:027
277556699347346,1cyclictest2994044-21kworker/3:121:06:023
277556699347346,1cyclictest2845596-21kworker/3:223:23:023
277556699347346,1cyclictest0-21swapper/319:25:023
277556699347345,1cyclictest2994044-21kworker/3:119:48:023
277556699347345,1cyclictest2845596-21kworker/3:200:34:023
277556699347345,1cyclictest2845596-21kworker/3:200:34:023
277559899346345,1cyclictest2734023-21kworker/7:119:31:027
277559899346345,1cyclictest0-21swapper/720:52:027
277559899346344,1cyclictest2734023-21kworker/7:120:02:027
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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