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2025-11-21 - 19:50
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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 50 highest latencies:
System rack6slot6 (updated Fri Nov 21, 2025 12:43:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
161439910704553436,53546cyclictest3950irq/9-acpi12:06:310
161439910700153430,53482cyclictest3950irq/9-acpi09:14:310
161439910678453392,53294cyclictest1911-21snmpd08:17:550
161439910672253384,53249cyclictest16123-21cyclictest11:52:470
161439910667153415,53191cyclictest14395-21kworker/0:310:18:300
161439910666553393,53209cyclictest5350irq/9-uhci_hcd:09:53:420
161439910665853483,53082cyclictest838-21diskmemload10:44:570
161439910665253473,53179cyclictest0-21swapper09:32:360
161439910663553388,53156cyclictest9-21ksoftirqd/011:07:140
161439910657953424,53090cyclictest9-21ksoftirqd/010:33:040
161439910655753478,52988cyclictest14319-21kworker/u2:012:31:480
161439910653753473,53064cyclictest0-21swapper08:31:090
161439910652653475,53051cyclictest0-21swapper10:13:480
161439910651953469,53050cyclictest0-21swapper07:51:270
161439910651753431,53086cyclictest0-21swapper10:23:410
161439910651353469,53044cyclictest0-21swapper08:48:440
161439910650153396,53105cyclictest0-21swapper11:47:050
161439910649353408,53019cyclictest3950irq/9-acpi09:09:200
161439910647953461,53018cyclictest0-21swapper12:24:460
161439910646153360,53078cyclictest24930-21ssh11:13:450
161439910638353399,52984cyclictest0-21swapper08:37:000
161439910636253468,52894cyclictest0-21swapper10:25:320
161439910633453395,52877cyclictest9-21ksoftirqd/007:48:260
161439910629753476,52757cyclictest9-21ksoftirqd/008:52:250
161439910627253448,52708cyclictest0-21swapper08:22:260
161439910624053475,52765cyclictest0-21swapper12:15:030
161439910622553429,52796cyclictest0-21swapper07:23:490
161439910622253402,52820cyclictest0-21swapper08:08:320
161439910618553412,52773cyclictest0-21swapper09:39:480
161439910616553405,52760cyclictest0-21swapper11:26:090
161439910614953441,52708cyclictest0-21swapper09:49:310
161439910614053435,52705cyclictest0-21swapper09:22:440
161439910613653435,52701cyclictest0-21swapper08:27:580
161439910612753424,52703cyclictest0-21swapper07:12:460
161439910603053058,52969cyclictest12343-21sh11:40:430
161439910584653339,52507cyclictest0-21swapper10:55:400
161439910528852999,52287cyclictest6720-21ssh10:02:250
161439910507152962,52107cyclictest0-21swapper12:04:500
16143995361827,53499cyclictest9-21ksoftirqd/007:15:370
16143995343325,53408cyclictest0-21swapper11:01:320
16143995335124,53327cyclictest0-21swapper09:59:240
16143995317527,390cyclictest0-21swapper08:57:260
16143995316625,383cyclictest0-21swapper09:04:180
161439922911100,1099cyclictest4165-21kworker/0:007:59:190
161439921241073,951cyclictest53342sleep011:31:000
161439921081090,918cyclictest2114-21munin-node11:35:320
161439921071044,1029cyclictest0-21swapper12:12:120
161439920991011,995cyclictest9-21ksoftirqd/009:15:510
161439920941038,1021cyclictest0-21swapper08:01:400
16143992021983,1004cyclictest0-21swapper07:42:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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