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2026-08-20 - 13:40
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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 Thu Aug 20, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
248209910729953413,53794cyclictest0-21swapper22:37:000
248209910703553464,53475cyclictest7870-21ssh00:04:050
248209910669253445,53247cyclictest0-21swapper20:05:260
248209910668753380,53242cyclictest0-21swapper23:20:530
248209910661053403,53207cyclictest0-21swapper23:33:460
248209910655353450,53103cyclictest0-21swapper19:58:550
248209910653853397,53141cyclictest0-21swapper19:50:320
248209910652553414,53047cyclictest0-21swapper23:18:420
248209910652253447,53075cyclictest0-21swapper21:30:410
248209910652153479,53042cyclictest0-21swapper23:35:070
248209910651253352,53145cyclictest22529-21ssh22:50:440
248209910649753401,53031cyclictest134850irq/9-eth022:58:560
248209910649553398,53097cyclictest0-21swapper19:28:460
248209910647153412,53059cyclictest0-21swapper21:48:160
248209910647053397,53073cyclictest0-21swapper00:35:440
248209910646853452,53016cyclictest0-21swapper22:16:040
248209910646153435,53026cyclictest0-21swapper22:13:330
248209910643053436,52994cyclictest0-21swapper00:20:300
248209910642553478,52885cyclictest4704-21kworker/0:019:38:090
248209910638353472,52846cyclictest0-21swapper20:26:120
248209910633153392,52847cyclictest0-21swapper19:23:040
248209910623453480,52754cyclictest0-21swapper20:52:200
248209910621853472,52746cyclictest0-21swapper20:35:550
248209910620853472,52736cyclictest0-21swapper21:44:550
248209910620053405,52760cyclictest0-21swapper19:31:070
248209910617553408,52767cyclictest0-21swapper00:28:220
248209910617353450,52723cyclictest0-21swapper21:05:340
248209910613653389,52747cyclictest0-21swapper21:52:170
248209910613253425,52707cyclictest0-21swapper19:46:410
248209910517653028,52146cyclictest0-21swapper21:58:190
248209910517253065,52106cyclictest0-21swapper22:03:000
248209910514853055,52092cyclictest0-21swapper23:47:300
248209910514653051,52094cyclictest0-21swapper22:48:230
248209910507452957,52114cyclictest19169-21ssh21:13:560
248209910505753001,52054cyclictest0-21swapper20:33:240
248209910500752902,52103cyclictest0-21swapper21:03:430
24820995343327,0cyclictest0-21swapper22:29:380
24820995342015,0cyclictest0-21swapper21:20:380
24820995326224,0cyclictest0-21swapper20:02:360
24820995307712,6cyclictest18133-21ssh00:18:590
24820995297528,52881cyclictest3950irq/9-acpi00:32:230
248209924141093,1255cyclictest5350irq/9-uhci_hcd:23:57:130
248209922981049,1158cyclictest3950irq/9-acpi21:35:220
248209922921064,1101cyclictest30565-21ssh23:03:080
248209922611071,1063cyclictest2687-21gconfd-220:13:390
248209922561073,1058cyclictest7160-21automount20:45:580
248209922541094,1066cyclictest9-21ksoftirqd/022:08:120
248209921091010,1062cyclictest14299-21ssh00:13:080
248209920781027,1016cyclictest0-21swapper20:43:570
248209920701010,1026cyclictest0-21swapper23:08:090
248209920641005,1025cyclictest0-21swapper00:09:170
248209920641004,1025cyclictest0-21swapper19:41:290
248209920341003,965cyclictest3950irq/9-acpi23:53:120
248209919801056,833cyclictest9434-21ssh22:32:190
248209919651037,804cyclictest21324-21diskmemload21:16:070
248209919251036,851cyclictest17582-21runrttasks22:44:520
24820991864936,903cyclictest29586-21ssh21:28:500
248209918411080,695cyclictest3950irq/9-acpi23:43:490
24820991769873,880cyclictest1626-21ssh22:20:450
248209917471052,604cyclictest24811-21cyclictest20:23:110
248209917181025,600cyclictest0-21swapper20:15:490
248209916831088,595cyclictest0-21swapper23:26:440
248209916381065,573cyclictest0-21swapper20:55:510
248209915961095,411cyclictest134850irq/9-eth023:10:300
248209914561053,403cyclictest0-21swapper19:19:130
24820991182611,567cyclictest27219-21hwlatdetect-tra19:10:100
2246727419,29sleep022757-21hwlatdetect-tra19:06:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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