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2026-05-22 - 13:42
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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 792 highest latencies:
System rack6slot5.osadl.org (updated Fri May 22, 2026 00:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
235989993474702,4602cyclictest3329-21kworker/0:019:36:110
235989988504462,4337cyclictest3329-21kworker/0:019:18:080
235989986784345,4319cyclictest5062-21kworker/0:223:45:220
235989981354163,3957cyclictest25342-21kworker/0:100:15:250
235989980564333,3709cyclictest543-21kworker/0:022:17:010
235989980304345,3662cyclictest543-21kworker/0:023:12:540
235989980094130,3856cyclictest19732-21kworker/0:220:30:260
235989978434252,3568cyclictest543-21kworker/0:022:34:320
235989977424103,3615cyclictest3329-21kworker/0:019:58:120
235989977354011,3700cyclictest543-21kworker/0:022:49:110
235989976213941,3657cyclictest24878-21kworker/0:121:08:440
235989975753922,3638cyclictest25342-21kworker/0:100:24:480
235989973273894,3417cyclictest1424-21kworker/0:200:35:170
235989972083861,3335cyclictest3329-21kworker/0:020:13:270
235989971903770,3405cyclictest5062-21kworker/0:223:52:050
235989971833820,3339cyclictest5062-21kworker/0:223:35:040
235989971573699,3444cyclictest3329-21kworker/0:019:28:300
235989971063764,3291cyclictest25342-21kworker/0:100:13:000
235989970573568,3475cyclictest3329-21kworker/0:019:54:120
235989970533748,3291cyclictest5062-21kworker/0:223:43:230
235989970273813,3162cyclictest3329-21kworker/0:019:44:400
235989968313521,3267cyclictest31489-21kworker/0:123:21:580
235989967153481,3219cyclictest5062-21kworker/0:223:31:580
235989966543580,3063cyclictest3329-21kworker/0:019:24:230
235989966313569,3051cyclictest3329-21kworker/0:019:30:060
235989966243435,3174cyclictest1424-21kworker/0:200:31:500
235989965943432,3147cyclictest24878-21kworker/0:120:48:430
235989965833598,2933cyclictest543-21kworker/0:023:09:380
235989964023231,3129cyclictest19226-21kworker/0:221:54:010
235989963693386,2924cyclictest24878-21kworker/0:121:04:550
235989962163213,2951cyclictest543-21kworker/0:022:15:020
235989962123329,2868cyclictest543-21kworker/0:022:59:100
235989962103366,2839cyclictest3329-21kworker/0:019:46:160
235989961583094,3012cyclictest5062-21kworker/0:200:06:010
235989960643181,2868cyclictest543-21kworker/0:023:01:090
235989960253021,2953cyclictest5062-21kworker/0:200:02:380
235989959783344,2631cyclictest3329-21kworker/0:019:12:460
235989958223121,2651cyclictest24878-21kworker/0:120:45:010
235989946882450,2186cyclictest19732-21kworker/0:220:27:100
235989931413067,52cyclictest5062-21kworker/0:223:55:290
235989926752628,34cyclictest19226-21kworker/0:221:56:020
233562780186,204sleep00-21swapper19:08:380
235989950311,440cyclictest10959-21chrt22:35:250
235989948834,440cyclictest4894-21runrttasks22:04:340
235989946268,380cyclictest0-21swapper21:43:260
23598994499,426cyclictest0-21swapper23:26:520
235989944684,187cyclictest1097-21ssh00:28:130
235989944658,374cyclictest0-21swapper21:49:460
235989944483,187cyclictest15137-21ssh21:34:590
235989944363,366cyclictest0-21swapper21:29:240
235989944058,208cyclictest0-21swapper22:25:530
235989942959,87cyclictest4272-21snmpd20:59:570
235989942855,87cyclictest8131-21ssh21:17:400
235989942766,178cyclictest0-21swapper20:20:060
235989942755,358cyclictest0-21swapper22:52:590
235989942378,284cyclictest9165-21ssh21:20:400
235989941452,303cyclictest0-21swapper22:23:240
235989941251,301cyclictest14497-21ssh22:43:310
235989940734,188cyclictest4894-21runrttasks23:16:300
235989939927,357cyclictest29147-21ssh22:05:300
235989939632,350cyclictest4894-21runrttasks20:02:180
235989939631,351cyclictest4894-21runrttasks20:19:140
235989939329,350cyclictest5127-21ssh21:10:550
235989938535,336cyclictest23945-21cut20:35:220
235989938031,279cyclictest29496-21gltestperf20:50:220
235989937132,278cyclictest4217-21diskmemload21:37:230
235989936932,277cyclictest13229-21strings20:05:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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