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2026-03-10 - 08:12
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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 376 highest latencies:
System rack6slot6 (updated Tue Mar 10, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
186959910758653460,54028cyclictest2099-21runrttasks20:48:510
186959910717753473,53606cyclictest1907-21snmpd00:39:080
186959910711853447,53607cyclictest19948-21kworker/0:121:35:450
186959910702753481,53450cyclictest3573-21diskmemload00:04:080
186959910685953442,53417cyclictest0-21swapper23:26:070
186959910680753421,53323cyclictest9-21ksoftirqd/021:21:010
186959910674153409,53241cyclictest0-21swapper20:22:140
186959910674153390,53351cyclictest0-21swapper00:19:320
186959910668353460,53223cyclictest0-21swapper20:00:270
186959910661453427,53067cyclictest0-21swapper20:14:210
186959910661353469,53052cyclictest0-21swapper00:07:590
186959910658553469,53116cyclictest0-21swapper22:54:070
186959910657953463,53116cyclictest0-21swapper19:44:430
186959910656853399,53104cyclictest0-21swapper19:16:550
186959910654253384,53093cyclictest0-21swapper00:11:000
186959910653453465,53069cyclictest0-21swapper21:56:010
186959910651353474,53039cyclictest0-21swapper22:57:080
186959910651253475,53037cyclictest0-21swapper22:08:140
186959910650953462,53047cyclictest0-21swapper23:35:390
186959910650453401,53103cyclictest0-21swapper23:42:510
186959910650153469,53032cyclictest0-21swapper20:19:330
186959910650153446,53055cyclictest0-21swapper20:51:020
186959910650053471,53029cyclictest0-21swapper22:15:360
186959910649053467,53023cyclictest0-21swapper23:06:510
186959910648053463,53017cyclictest0-21swapper21:13:490
186959910647753458,53019cyclictest0-21swapper23:20:050
186959910647053399,53071cyclictest0-21swapper20:30:060
186959910646853400,53068cyclictest0-21swapper23:53:350
186959910644453398,52984cyclictest9-21ksoftirqd/023:56:050
186959910643353479,52891cyclictest18690-21cyclictest19:27:580
186959910643053425,53005cyclictest0-21swapper20:37:580
186959910641753432,52985cyclictest0-21swapper19:55:060
186959910633653471,52865cyclictest0-21swapper23:46:120
186959910629353425,52868cyclictest0-21swapper21:07:070
186959910629153391,52808cyclictest0-21swapper19:33:500
186959910622453479,52745cyclictest0-21swapper19:45:330
186959910621953472,52747cyclictest0-21swapper00:22:230
186959910621453473,52741cyclictest0-21swapper21:02:550
186959910621053469,52741cyclictest0-21swapper20:27:250
186959910620653469,52737cyclictest0-21swapper19:38:410
186959910619853462,52736cyclictest0-21swapper19:52:150
186959910619053444,52746cyclictest0-21swapper21:26:220
186959910615653400,52756cyclictest0-21swapper20:40:390
186959910580553276,52516cyclictest0-21swapper20:59:340
186959910544753172,52275cyclictest0-21swapper23:32:590
186959910502452925,52097cyclictest0-21swapper22:14:560
186959910491952861,52056cyclictest0-21swapper23:02:400
18695995422229,54067cyclictest4776-21ssh22:45:150
18695995362924,0cyclictest0-21swapper21:16:590
18695995336025,53335cyclictest0-21swapper22:22:480
18695995335026,53324cyclictest0-21swapper20:06:390
18695995332124,0cyclictest0-21swapper19:22:570
18695995273327,52706cyclictest0-21swapper21:32:040
186959925531075,1352cyclictest1907-21snmpd21:47:480
186959923011053,1096cyclictest3573-21diskmemload22:32:410
186959921341102,908cyclictest2099-21runrttasks23:11:320
186959920881060,904cyclictest11180-21ssh00:26:540
186959919961077,855cyclictest134850irq/9-eth021:41:260
186959919871016,849cyclictest3573-21diskmemload22:26:190
186959919111040,778cyclictest0-21swapper19:12:340
186959918231058,671cyclictest0-21swapper22:40:130
186959918121086,661cyclictest3950irq/9-acpi23:19:250
186959916951016,614cyclictest12420-1kworker/u3:100:33:260
186959916311003,565cyclictest18690-21cyclictest21:50:490
1869599154030,1385cyclictest8972-21rm22:04:330
18695991520973,544cyclictest0-21swapper22:37:230
18096255789,207sleep00-21swapper19:07:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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