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2026-09-20 - 12:29
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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 all highest latencies:
System rack6slot6 (updated Sun Sep 20, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
212299910984255064,54775cyclictest1741-21hald19:50:050
212299910759253469,54026cyclictest3316-21sendmail22:53:580
212299910730953437,53782cyclictest27124-21kworker/0:219:28:080
212299910701053461,53426cyclictest10858-21ssh23:28:480
212299910665253481,53155cyclictest15865-21kworker/0:320:17:120
212299910657153445,53034cyclictest0-21swapper19:33:200
212299910651853482,53036cyclictest0-21swapper00:00:570
212299910650653462,53044cyclictest0-21swapper22:44:250
212299910649453465,53029cyclictest0-21swapper22:18:470
212299910647953458,53021cyclictest0-21swapper23:59:570
212299910646253411,53051cyclictest0-21swapper21:15:590
212299910640253419,52983cyclictest0-21swapper22:08:040
212299910639853420,52978cyclictest0-21swapper23:34:590
212299910634953449,52810cyclictest9-21ksoftirqd/020:24:350
212299910626653418,52756cyclictest0-21swapper20:03:280
212299910626553392,52810cyclictest0-21swapper20:38:080
212299910621053409,52737cyclictest9936-1kworker/u3:100:23:330
212299910619753466,52731cyclictest0-21swapper19:16:050
212299910618953444,52708cyclictest0-21swapper23:54:150
212299910618053453,52727cyclictest0-21swapper21:56:410
212299910616653446,52720cyclictest0-21swapper22:36:330
212299910616653405,52761cyclictest0-21swapper20:54:030
212299910615553400,52755cyclictest0-21swapper21:31:140
212299910613453430,52704cyclictest0-21swapper22:21:280
212299910578853255,52533cyclictest0-21swapper22:31:410
212299910570653037,52666cyclictest26660-21ssh21:37:050
212299910543453151,52272cyclictest23741-21sh23:01:200
212299910518153066,52113cyclictest0-21swapper00:28:450
212299910516753056,52109cyclictest0-21swapper00:09:090
212299910508352977,52104cyclictest0-21swapper23:24:260
212299910506652972,52092cyclictest0-21swapper21:25:420
212299910502552935,52088cyclictest0-21swapper00:13:200
21229995323031,311cyclictest32138-21ssh22:29:310
21229995322615,53207cyclictest0-21swapper21:04:060
21229995315726,0cyclictest0-21swapper22:58:290
21229995311511,53102cyclictest0-21swapper23:15:340
21229995305527,53028cyclictest0-21swapper20:08:300
21229995277925,52754cyclictest0-21swapper19:38:510
21229995277624,52752cyclictest0-21swapper20:11:510
21229995275024,52726cyclictest0-21swapper19:12:540
212299922301068,1063cyclictest2006-21ssh21:47:580
212299921541094,970cyclictest3950irq/9-acpi00:15:110
212299920701026,949cyclictest3950irq/9-acpi00:32:460
212299920671051,950cyclictest134850irq/9-eth022:12:150
212299920661006,1026cyclictest0-21swapper20:30:060
212299920631021,1005cyclictest30577-21ssh21:42:370
212299920431022,955cyclictest134850irq/9-eth000:37:470
212299920361016,999cyclictest0-21swapper20:46:010
21229992005947,1024cyclictest0-21swapper20:29:560
212299919961037,866cyclictest0-21swapper19:56:460
212299919911049,844cyclictest28318-21ssh23:08:120
21229991974952,987cyclictest0-21swapper23:37:300
212299919461003,909cyclictest0-21swapper22:48:260
212299919391053,792cyclictest0-21swapper20:40:590
212299919331082,783cyclictest3950irq/9-acpi23:12:530
212299919281015,913cyclictest0-21swapper22:00:320
21229991912972,915cyclictest25326-21ssh23:48:430
21229991863909,940cyclictest0-21swapper21:12:180
21229991852904,934cyclictest0-21swapper21:54:100
212299918011073,637cyclictest21227-21cyclictest20:59:040
212299917921086,614cyclictest134850irq/9-eth021:21:310
212299917811055,726cyclictest0-21swapper19:44:430
212299917001037,572cyclictest29311-21kworker/0:119:45:530
21229991561746,812cyclictest0-21swapper21:06:370
2122999150827,1354cyclictest20684-21diskmemload23:41:410
212299915021012,426cyclictest0-21swapper19:24:370
20539253470,207sleep00-21swapper19:07:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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