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2025-09-13 - 08:54
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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 792 highest latencies:
System rack6slot6 (updated Sat Sep 13, 2025 00:43:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
213649910713953393,53682cyclictest25404-1kworker/u3:223:52:560
213649910670053300,53386cyclictest0-21swapper21:39:270
213649910668453430,53190cyclictest3950irq/9-acpi21:25:330
213649910665353460,53193cyclictest0-21swapper21:16:210
213649910662053381,53147cyclictest9-21ksoftirqd/022:41:050
213649910658653410,53176cyclictest0-21swapper21:08:390
213649910655753458,53099cyclictest0-21swapper21:14:400
213649910655253427,53125cyclictest0-21swapper20:29:470
213649910655053476,53074cyclictest0-21swapper00:00:480
213649910653353481,53052cyclictest0-21swapper00:18:030
213649910653153395,53136cyclictest0-21swapper20:52:240
213649910651953477,53042cyclictest0-21swapper23:24:480
213649910651753373,53077cyclictest0-21swapper21:22:430
213649910650453431,53073cyclictest0-21swapper00:38:190
213649910644653446,53000cyclictest0-21swapper19:21:380
213649910642153429,52992cyclictest0-21swapper00:14:020
213649910640653425,52981cyclictest0-21swapper23:12:240
213649910637253387,52921cyclictest9-21ksoftirqd/000:23:050
213649910636653477,52889cyclictest0-21swapper23:28:290
213649910635453407,52883cyclictest24719-21kworker/0:019:34:110
213649910633953463,52786cyclictest0-21swapper20:49:030
213649910632753395,52868cyclictest0-21swapper19:58:480
213649910630653447,52859cyclictest0-21swapper19:41:130
213649910627553457,52706cyclictest0-21swapper20:22:050
213649910627153456,52702cyclictest0-21swapper19:52:570
213649910626753454,52703cyclictest0-21swapper20:38:500
213649910626653428,52838cyclictest0-21swapper19:15:360
213649910622753472,52719cyclictest0-21swapper22:04:150
213649910620553424,52781cyclictest0-21swapper23:09:330
213649910618153406,52775cyclictest0-21swapper22:20:590
213649910614953469,52588cyclictest0-21swapper21:48:300
213649910614453391,52753cyclictest0-21swapper19:47:050
213649910613553430,52705cyclictest0-21swapper19:28:400
213649910613453429,52705cyclictest0-21swapper21:41:180
213649910612153429,52692cyclictest0-21swapper22:05:450
213649910601653411,52605cyclictest0-21swapper00:33:380
213649910525352982,52269cyclictest133750irq/9-eth000:29:360
213649910514753033,52113cyclictest0-21swapper22:54:190
21364995396853377,526cyclictest0-21swapper19:37:320
21364995376553434,331cyclictest0-21swapper22:31:120
21364995369153388,238cyclictest0-21swapper22:15:080
21364995336727,53340cyclictest0-21swapper22:27:210
21364995325925,53234cyclictest0-21swapper20:08:110
21364995321627,0cyclictest0-21swapper20:03:500
21364995316827,383cyclictest0-21swapper21:04:070
213649922541096,1059cyclictest17954-21ssh22:55:590
213649922201039,1147cyclictest0-21swapper23:47:340
213649921891063,1001cyclictest28071-21ssh23:55:370
213649921521092,970cyclictest9-21ksoftirqd/021:53:520
213649920631002,1026cyclictest0-21swapper23:04:220
213649920521097,863cyclictest0-21swapper20:44:010
213649920421088,859cyclictest0-21swapper20:57:350
213649920321021,915cyclictest1998-21sendmail00:06:500
213649920271028,963cyclictest3950irq/9-acpi22:45:460
213649919501021,837cyclictest3950irq/9-acpi23:34:100
213649919091039,778cyclictest0-21swapper20:34:590
213649919061038,778cyclictest0-21swapper20:18:540
21364991900916,962cyclictest0-21swapper22:11:470
213649918151093,597cyclictest7967-21ssh21:56:220
21364991811930,860cyclictest3950irq/9-acpi23:37:010
213649918101009,763cyclictest4424-21ssh22:37:140
213649917311095,636cyclictest0-21swapper19:12:550
213649917001095,540cyclictest3950irq/9-acpi23:17:360
21364991695955,703cyclictest6428-21diskmemload23:43:030
213649916931067,560cyclictest5350irq/9-uhci_hcd:21:31:450
213649915331064,469cyclictest0-21swapper20:14:430
20752273837,204sleep00-21swapper19:07:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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