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2026-04-09 - 15:09
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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
Characteristics of the 376 highest latencies:
System rack6slot6 (updated Thu Apr 09, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
67699910664653456,53099cyclictest9-21ksoftirqd/007:55:300
67699910652753404,53059cyclictest9-21ksoftirqd/009:48:230
67699910650753469,53038cyclictest0-21swapper09:21:050
67699910650053480,52932cyclictest6762-21cyclictest10:42:180
67699910648853468,53020cyclictest0-21swapper10:31:550
67699910646953452,53017cyclictest0-21swapper11:18:090
67699910645753447,53010cyclictest0-21swapper08:12:550
67699910645753436,53021cyclictest0-21swapper09:35:290
67699910645753406,53051cyclictest0-21swapper11:23:300
67699910645453449,53005cyclictest0-21swapper12:21:370
67699910645453435,53019cyclictest0-21swapper10:09:590
67699910645353404,53049cyclictest0-21swapper09:34:590
67699910644353448,52995cyclictest0-21swapper11:01:340
67699910643453434,53000cyclictest0-21swapper11:13:570
67699910642753465,52962cyclictest0-21swapper08:08:540
67699910637453135,53236cyclictest0-21swapper11:58:200
67699910636153435,52926cyclictest0-21swapper08:18:270
67699910628053396,52818cyclictest0-21swapper07:41:060
67699910627853406,52759cyclictest0-21swapper08:52:570
67699910627653384,52801cyclictest0-21swapper08:59:590
67699910627253398,52754cyclictest0-21swapper08:49:060
67699910626553391,52809cyclictest0-21swapper09:54:240
67699910625953483,52776cyclictest0-21swapper07:49:480
67699910623553376,52793cyclictest0-21swapper07:33:140
67699910621253474,52738cyclictest0-21swapper09:13:330
67699910621053472,52738cyclictest0-21swapper10:21:020
67699910619153419,52772cyclictest0-21swapper08:36:020
67699910617853455,52723cyclictest0-21swapper09:03:500
67699910616653470,52696cyclictest0-21swapper07:14:080
67699910614653395,52751cyclictest0-21swapper07:22:510
67699910614353433,52710cyclictest0-21swapper08:21:380
67699910601353034,52977cyclictest20755-21ssh10:38:570
67699910515153003,52146cyclictest23451-21ssh12:16:350
67699910510553008,52095cyclictest0-21swapper10:29:350
67699910506052951,52107cyclictest0-21swapper10:14:000
6769995321526,53091cyclictest1339-21ssh12:31:500
6769995318725,53064cyclictest16170-21ssh12:05:320
6769995317426,53058cyclictest9-21ksoftirqd/008:34:010
6769995305724,53033cyclictest0-21swapper10:59:530
6769995295627,52864cyclictest0-21swapper07:38:150
6769995278426,52758cyclictest0-21swapper07:52:090
67699923641070,1226cyclictest3950irq/9-acpi09:18:440
67699923401040,1208cyclictest6762-21cyclictest12:13:240
67699922851091,1067cyclictest22880-21ssh11:29:120
67699922421082,1035cyclictest11977-21kworker/u2:011:30:320
67699920891022,1027cyclictest3752-21ssh09:26:060
67699920691029,946cyclictest236972sleep009:08:010
67699920661083,970cyclictest0-21swapper11:36:140
6769992010985,988cyclictest29093-21ssh10:03:570
67699919851030,861cyclictest0-21swapper08:27:190
67699919831030,861cyclictest0-21swapper11:45:560
67699919621024,869cyclictest134850irq/9-eth012:38:520
6769991906932,937cyclictest24516-21taskset09:56:250
6769991865914,914cyclictest24085-21diskmemload10:17:110
67699918261002,790cyclictest3950irq/9-acpi12:26:080
67699918081012,703cyclictest263922sleep010:46:190
67699918001003,677cyclictest0-21swapper11:44:260
67699917711029,652cyclictest6762-21cyclictest09:43:210
6769991763996,676cyclictest0-21swapper11:50:580
67699916051058,547cyclictest0-21swapper07:15:490
67699916031092,445cyclictest0-21swapper11:07:150
67699915941089,441cyclictest6762-21cyclictest12:03:110
67699915631072,425cyclictest9-21ksoftirqd/007:28:520
67699914611041,420cyclictest0-21swapper08:42:540
67699914511093,358cyclictest0-21swapper08:04:030
67699914121089,323cyclictest0-21swapper10:51:510
5707254783,238sleep00-21swapper07:05:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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