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2026-03-22 - 23:53
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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 Sun Mar 22, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
115889910684853397,53386cyclictest11635-1kworker/u3:012:07:340
115889910684153475,53241cyclictest2648-21ssh11:42:260
115889910674053408,53266cyclictest0-21swapper08:02:230
115889910667453395,53215cyclictest9-21ksoftirqd/010:45:200
115889910663153390,53178cyclictest9-21ksoftirqd/009:06:210
115889910663053452,53178cyclictest0-21swapper12:11:250
115889910659853468,53130cyclictest0-21swapper08:10:350
115889910659253473,53028cyclictest0-21swapper08:07:140
115889910657653464,53112cyclictest0-21swapper10:24:340
115889910657553421,53154cyclictest0-21swapper10:58:140
115889910655053388,53097cyclictest0-21swapper12:22:280
115889910651853406,53076cyclictest30503-21smartctl11:35:240
115889910651353385,53063cyclictest0-21swapper09:19:050
115889910649953466,53033cyclictest0-21swapper09:42:320
115889910649453466,53028cyclictest0-21swapper10:04:280
115889910648553481,53004cyclictest0-21swapper09:02:000
115889910646653452,53014cyclictest0-21swapper11:14:580
115889910646153457,53004cyclictest0-21swapper12:34:010
115889910645553481,52911cyclictest3950irq/9-acpi11:29:230
115889910645153403,53048cyclictest0-21swapper12:36:020
115889910644253400,53042cyclictest0-21swapper08:51:070
115889910643053391,53039cyclictest0-21swapper11:58:210
115889910640453424,52980cyclictest0-21swapper08:58:490
115889910640453419,52985cyclictest0-21swapper10:06:190
115889910635853467,52800cyclictest0-21swapper07:21:310
115889910633753090,53237cyclictest0-21swapper10:15:510
115889910630153386,52852cyclictest134850irq/9-eth012:03:120
115889910628353386,52806cyclictest0-21swapper10:42:290
115889910626353413,52850cyclictest0-21swapper08:21:180
115889910624453381,52798cyclictest0-21swapper11:07:360
115889910620653467,52739cyclictest0-21swapper09:59:070
115889910616953447,52722cyclictest0-21swapper08:39:540
115889910616553446,52719cyclictest0-21swapper07:38:560
115889910610953417,52692cyclictest0-21swapper11:02:050
115889910572853024,52701cyclictest18520-21ssh11:18:090
115889910562853043,52574cyclictest7980-21ssh09:25:370
115889910554553035,52508cyclictest10156-21ssh11:54:100
11588995393653405,440cyclictest0-21swapper08:29:010
11588995362226,53596cyclictest0-21swapper07:10:280
11588995357153395,176cyclictest0-21swapper07:44:080
11588995328028,53160cyclictest0-21swapper09:53:350
11588995312627,53099cyclictest0-21swapper08:34:420
11588995310726,0cyclictest0-21swapper07:17:400
11588995306827,53041cyclictest0-21swapper09:47:430
115889924581100,1235cyclictest1535-21ssh10:53:120
115889923701090,1185cyclictest134850irq/9-eth009:14:540
115889922831078,1080cyclictest26268-21ssh12:17:470
115889921431010,1112cyclictest0-21swapper11:21:000
115889920711055,922cyclictest134850irq/9-eth012:29:400
11588992052998,1020cyclictest0-21swapper07:56:510
115889920221019,967cyclictest28859-21runrttasks11:33:440
115889919961032,872cyclictest0-21swapper07:49:490
115889919831029,861cyclictest0-21swapper08:18:380
115889919811009,934cyclictest28728-21diskmemload10:26:450
11588991915940,961cyclictest0-21swapper07:51:200
11588991791929,842cyclictest0-21swapper07:29:230
115889917801025,662cyclictest3950irq/9-acpi09:21:560
115889916971069,563cyclictest11587-21cyclictest10:14:210
115889916341033,564cyclictest2099-21runrttasks07:33:550
115889916251020,542cyclictest9-21ksoftirqd/010:34:170
115889916011082,519cyclictest0-21swapper11:46:070
115889915971081,516cyclictest0-21swapper09:34:500
115889915961014,490cyclictest3950irq/9-acpi10:38:480
115889915541059,495cyclictest0-21swapper08:48:360
115889914801089,352cyclictest0-21swapper08:40:140
115889914091026,383cyclictest0-21swapper09:35:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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