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2026-03-16 - 05:28
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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 Mon Mar 16, 2026 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
142919910686453431,53336cyclictest9-21ksoftirqd/021:22:400
142919910666153477,53184cyclictest0-21swapper20:35:060
142919910664253469,53173cyclictest0-21swapper21:03:040
142919910662253479,53052cyclictest9-21ksoftirqd/021:46:370
142919910658353477,53043cyclictest9-21ksoftirqd/020:55:020
142919910651953482,53037cyclictest0-21swapper22:00:010
142919910648653420,53066cyclictest0-21swapper21:40:050
142919910648453473,53011cyclictest0-21swapper21:38:550
142919910647853461,53017cyclictest0-21swapper21:58:400
142919910646753410,53057cyclictest0-21swapper22:48:050
142919910646653411,53055cyclictest0-21swapper20:07:480
142919910643853396,53042cyclictest0-21swapper19:51:340
142919910642053413,52918cyclictest10-21rcuc/021:52:490
142919910639953427,52972cyclictest0-21swapper00:29:540
142919910638653388,52935cyclictest9-21ksoftirqd/019:31:280
142919910633653480,52795cyclictest14281-21cyclictest20:24:530
142919910632653480,52846cyclictest0-21swapper22:53:260
142919910626853449,52708cyclictest0-21swapper23:59:550
142919910626553449,52707cyclictest0-21swapper20:53:520
142919910623153483,52748cyclictest0-21swapper19:35:290
142919910618253413,52769cyclictest0-21swapper20:15:410
142919910613853434,52704cyclictest0-21swapper23:21:240
142919910613853391,52747cyclictest0-21swapper22:23:380
142919910605152975,53074cyclictest0-21swapper23:06:500
142919910510453006,52096cyclictest0-21swapper23:14:520
142919910509352898,52193cyclictest31882-21ssh00:12:390
14291995419253433,759cyclictest0-21swapper21:31:430
14291995397053379,499cyclictest0-21swapper20:30:350
14291995385653392,464cyclictest0-21swapper22:39:220
14291995383053391,439cyclictest0-21swapper21:17:290
14291995372826,576cyclictest9-21ksoftirqd/019:55:550
14291995363953371,206cyclictest134850irq/9-eth020:45:390
14291995360425,53454cyclictest29109-21ssh00:08:580
14291995352725,53409cyclictest0-21swapper23:26:060
14291995343229,53308cyclictest0-21swapper00:33:550
14291995325325,465cyclictest0-21swapper20:28:240
14291995324918,53227cyclictest0-21swapper23:46:110
14291995323925,53214cyclictest0-21swapper21:27:110
14291995318633,53088cyclictest9-21ksoftirqd/000:22:120
14291995316127,0cyclictest0-21swapper22:10:440
14291995304728,0cyclictest3950irq/9-acpi00:03:560
14291995304327,0cyclictest0-21swapper21:09:260
14291995278326,52757cyclictest0-21swapper19:24:360
142919922391089,1027cyclictest7445-21ssh21:12:270
14291992200975,1201cyclictest14757-21munin-node23:00:280
142919921891092,1004cyclictest5350irq/9-uhci_hcd:23:40:200
142919920851084,909cyclictest0-21swapper20:01:570
142919920671096,872cyclictest5231-21diskmemload23:37:290
14291992039993,1046cyclictest0-21swapper20:14:400
142919920151031,863cyclictest0-21swapper20:41:480
142919919901057,834cyclictest309-21munin-node19:40:210
142919919801060,796cyclictest2099-21runrttasks22:15:150
142919919761017,893cyclictest3950irq/9-acpi23:32:070
142919919561045,812cyclictest26902-21ssh22:30:090
142919919191041,785cyclictest0-21swapper19:25:260
142919918971033,771cyclictest0-21swapper19:48:530
14291991892980,912cyclictest0-21swapper00:35:460
14291991883894,975cyclictest0-21swapper23:16:130
14291991879962,900cyclictest13214-21taskset22:56:570
14291991859884,961cyclictest0-21swapper22:43:430
14291991851952,878cyclictest3950irq/9-acpi22:06:430
142919918281024,767cyclictest5231-21diskmemload00:19:110
142919917841061,598cyclictest25234-21ssh22:26:380
14291991744975,732cyclictest18346-21ssh23:52:330
14291991041574,463cyclictest18767-21grep19:10:220
1429199983549,431cyclictest26492-21hwlatdetect-tra19:17:540
1100326011,40sleep011289-21wc19:07:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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