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2025-09-18 - 03:00
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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 Thu Sep 18, 2025 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139709910697153392,53488cyclictest30913-21kworker/u2:123:28:330
139709910692953453,53410cyclictest133750irq/9-eth000:10:550
139709910678653443,53343cyclictest0-21swapper23:50:500
139709910666353437,53226cyclictest0-21swapper22:31:170
139709910655753412,53145cyclictest0-21swapper20:02:340
139709910653053398,53132cyclictest0-21swapper23:17:300
139709910652253407,53115cyclictest0-21swapper22:41:100
139709910646653453,53013cyclictest0-21swapper23:08:070
139709910646453458,53006cyclictest0-21swapper19:13:300
139709910644353399,53044cyclictest0-21swapper00:24:290
139709910634953400,52859cyclictest0-21swapper19:58:130
139709910624053422,52818cyclictest0-21swapper20:18:080
139709910621553473,52742cyclictest0-21swapper21:42:430
139709910619853397,52801cyclictest0-21swapper20:55:090
139709910619353374,52754cyclictest9-21ksoftirqd/021:08:230
139709910616253400,52762cyclictest0-21swapper20:31:220
139709910615953404,52755cyclictest0-21swapper20:52:380
139709910615153426,52725cyclictest0-21swapper19:18:310
139709910614553452,52693cyclictest0-21swapper19:48:300
139709910527852966,52309cyclictest11573-21ssh22:14:120
139709910507452956,52118cyclictest0-21swapper22:50:520
13970995401128,53860cyclictest22971-21ssh23:57:520
13970995356725,0cyclictest0-21swapper00:32:420
13970995350926,0cyclictest0-21swapper22:45:210
13970995329327,53173cyclictest0-21swapper21:29:090
13970995325929,53139cyclictest9-21ksoftirqd/022:56:540
13970995323225,0cyclictest0-21swapper19:27:240
13970995296228,0cyclictest9-21ksoftirqd/000:06:040
13970995293925,0cyclictest3950irq/9-acpi23:22:110
139709942832319,1961cyclictest2739-21devkit-power-da23:33:150
139709925491040,1383cyclictest14951-21ssh23:02:360
139709924281047,1255cyclictest7439-21ssh23:36:050
139709924171079,1245cyclictest5350irq/9-uhci_hcd:22:38:290
139709923421042,1206cyclictest9-21ksoftirqd/021:14:550
139709922361070,1066cyclictest2103-21runrttasks20:48:570
139709921371011,1000cyclictest2103-21runrttasks23:10:380
139709920231031,868cyclictest0-21swapper19:44:290
139709919991025,881cyclictest0-21swapper19:50:500
139709919361037,805cyclictest0-21swapper19:21:120
139709919331035,805cyclictest0-21swapper22:18:430
139709919331028,905cyclictest0-21swapper21:51:250
139709919281103,702cyclictest20177-21ssh00:38:430
139709919221038,760cyclictest2114-21munin-node20:37:140
139709919201043,785cyclictest0-21swapper23:45:180
13970991917941,942cyclictest5350irq/9-uhci_hcd:22:28:560
13970991907926,944cyclictest12571-21ssh23:43:580
13970991904931,937cyclictest4035-21ssh00:15:370
139709918721049,729cyclictest0-21swapper00:25:090
13970991856910,912cyclictest3950irq/9-acpi00:02:230
139709918161006,743cyclictest0-21swapper21:58:570
139709917511005,657cyclictest3950irq/9-acpi20:26:310
139709916951052,643cyclictest0-21swapper22:01:180
13970991676919,722cyclictest23602-21munin-node21:45:130
139709916281098,465cyclictest23703-21kworker/0:019:37:570
139709916251063,562cyclictest0-21swapper20:42:050
139709916221080,477cyclictest9-21ksoftirqd/021:21:470
139709916061033,507cyclictest3950irq/9-acpi21:30:090
139709916011051,550cyclictest0-21swapper21:38:110
13970991590977,580cyclictest9-21ksoftirqd/022:23:550
139709915691032,537cyclictest0-21swapper20:10:560
139709915681069,436cyclictest9-21ksoftirqd/020:08:150
139709915181107,411cyclictest0-21swapper22:08:000
139709915031012,426cyclictest0-21swapper21:00:510
139709914841090,394cyclictest0-21swapper21:17:050
139709914661096,370cyclictest0-21swapper20:22:500
139709914521096,356cyclictest0-21swapper19:31:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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