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2026-04-18 - 16:38
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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 highest latencies:
System rack6slot6 (updated Sat Apr 18, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7379910696453418,53454cyclictest0-21swapper11:09:190
7379910674453407,53270cyclictest0-21swapper07:38:290
7379910670653432,53153cyclictest32059-21ssh11:54:220
7379910668853492,53196cyclictest0-21swapper12:27:020
7379910659153407,53184cyclictest0-21swapper09:33:320
7379910657453409,53101cyclictest9-21ksoftirqd/009:38:430
7379910654553400,53082cyclictest134850irq/9-eth010:36:100
7379910653553373,53097cyclictest9-21ksoftirqd/008:58:220
7379910652453436,53088cyclictest0-21swapper12:10:570
7379910651853432,53086cyclictest0-21swapper07:59:150
7379910651153474,53037cyclictest0-21swapper11:28:550
7379910649853434,53064cyclictest0-21swapper07:28:560
7379910649553469,53026cyclictest0-21swapper11:59:440
7379910648953456,52970cyclictest5350irq/9-uhci_hcd:10:22:560
7379910648653461,53025cyclictest0-21swapper09:46:450
7379910647053439,53031cyclictest0-21swapper07:40:490
7379910645453446,53008cyclictest0-21swapper09:16:370
7379910645353402,53051cyclictest0-21swapper07:13:210
7379910644753392,53055cyclictest0-21swapper11:38:380
7379910644653400,53046cyclictest0-21swapper10:16:040
7379910643453444,52990cyclictest0-21swapper10:07:210
7379910642953392,53037cyclictest0-21swapper10:56:050
7379910642653435,52991cyclictest0-21swapper09:43:250
7379910632853473,52739cyclictest0-21swapper08:32:340
7379910631653389,52865cyclictest9-21ksoftirqd/010:30:480
7379910629453475,52757cyclictest9-21ksoftirqd/007:48:520
7379910617753410,52767cyclictest0-21swapper12:08:460
7379910617753410,52767cyclictest0-21swapper08:16:190
7379910616853451,52717cyclictest0-21swapper11:03:070
7379910616453401,52763cyclictest0-21swapper07:53:130
7379910614853433,52715cyclictest0-21swapper12:15:480
7379910614653387,52759cyclictest0-21swapper10:29:480
7379910531553055,52260cyclictest0-21swapper11:13:200
737995379753455,342cyclictest0-21swapper09:53:270
737995354353392,151cyclictest0-21swapper09:03:530
737995353626,53415cyclictest0-21swapper08:04:060
737995337227,53345cyclictest0-21swapper11:43:490
737995324826,440cyclictest0-21swapper09:56:280
737995319127,0cyclictest0-21swapper11:19:020
737995306828,53040cyclictest0-21swapper08:08:070
737995304424,52927cyclictest0-21swapper10:05:010
7379924501102,1224cyclictest26244-21ssh12:33:540
7379923181094,1175cyclictest22705-21ssh10:51:240
7379922191094,998cyclictest1907-21snmpd08:29:530
7379921831040,1017cyclictest288792sleep010:13:130
7379921601035,1087cyclictest31291-21ssh09:29:100
7379920961051,1010cyclictest0-21swapper12:38:150
7379920841026,936cyclictest0-21swapper11:47:200
7379919711023,855cyclictest0-21swapper08:42:270
737991939941,963cyclictest0-21swapper09:06:240
7379919331076,857cyclictest0-21swapper08:23:410
7379919311048,758cyclictest1907-21snmpd08:11:380
7379919271072,855cyclictest0-21swapper12:00:340
7379919201046,780cyclictest3950irq/9-acpi12:23:100
7379919141038,781cyclictest0-21swapper10:42:010
737991907972,898cyclictest17070-21ssh11:30:550
7379919051037,776cyclictest0-21swapper08:52:200
7379918851028,764cyclictest0-21swapper09:13:460
7379918241079,629cyclictest0-21swapper07:15:520
7379916951108,587cyclictest0-21swapper11:23:330
7379916341086,454cyclictest0-21swapper07:23:240
7379915601014,453cyclictest8565-21kworker/0:207:30:360
7379915431078,353cyclictest0-21swapper08:46:080
7379915001000,436cyclictest9-21ksoftirqd/009:20:180
7379914971009,423cyclictest0-21swapper08:38:560
7379914581092,366cyclictest0-21swapper10:45:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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