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2026-08-11 - 09:44
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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 Tue Aug 11, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6439910699353443,53460cyclictest9-21ksoftirqd/023:06:340
6439910692653384,53479cyclictest134850irq/9-eth000:13:230
6439910691153429,53389cyclictest0-21swapper23:53:180
6439910675253458,53230cyclictest134850irq/9-eth023:11:360
6439910673753407,53265cyclictest217882sleep019:57:500
6439910673553433,53212cyclictest9-21ksoftirqd/023:04:130
6439910667853421,53190cyclictest0-21swapper20:13:240
6439910666553397,53178cyclictest9-21ksoftirqd/000:19:250
6439910660153480,53029cyclictest0-21swapper00:21:160
6439910652653388,53075cyclictest7665-21ssh22:28:030
6439910651653476,53040cyclictest0-21swapper23:57:490
6439910651253418,53094cyclictest0-21swapper20:57:270
6439910649453492,53002cyclictest0-21swapper21:59:250
6439910649453465,53029cyclictest0-21swapper22:54:100
6439910646853456,53012cyclictest0-21swapper21:35:480
6439910644453463,52981cyclictest0-21swapper20:04:110
6439910644453400,53044cyclictest0-21swapper23:41:040
6439910642953444,52985cyclictest0-21swapper23:26:500
6439910642953433,52996cyclictest0-21swapper20:20:560
6439910642653442,52984cyclictest0-21swapper21:52:230
6439910642353434,52989cyclictest0-21swapper00:29:180
6439910641553473,52851cyclictest0-21swapper19:52:580
6439910627053422,52848cyclictest0-21swapper19:31:420
6439910619153424,52767cyclictest0-21swapper20:44:530
6439910615853403,52755cyclictest0-21swapper19:28:210
6439910615353448,52705cyclictest0-21swapper20:51:550
6439910612453424,52700cyclictest0-21swapper19:41:150
6439910611853420,52698cyclictest0-21swapper23:24:290
6439910581453245,52557cyclictest3950irq/9-acpi22:03:260
6439910562052966,52651cyclictest19067-21runrttasks23:32:110
6439910551552949,52563cyclictest1907-21snmpd20:45:130
6439910519153062,52127cyclictest26231-21ssh22:07:470
6439910508952973,52116cyclictest0-21swapper00:39:010
643995391453452,371cyclictest0-21swapper23:35:420
643995383953403,436cyclictest0-21swapper21:23:440
643995381524,156cyclictest0-21swapper22:33:450
643995363235,141cyclictest0-21swapper20:27:580
643995357235,53537cyclictest0-21swapper22:38:560
643995345226,0cyclictest0-21swapper00:30:080
643995335927,53240cyclictest0-21swapper20:18:460
643995300452972,30cyclictest6917-21ssh00:02:000
6439925561094,1338cyclictest18882-21diskmemload22:45:080
6439924411078,1237cyclictest20745-21ssh21:11:410
6439922781030,1153cyclictest3237-1kworker/0:1H21:01:280
6439922671060,1207cyclictest3707-21ssh22:21:510
6439922631011,1127cyclictest1907-21snmpd00:06:210
6439922381090,1050cyclictest18882-21diskmemload23:45:450
6439921501012,1070cyclictest181142sleep021:05:590
6439921331039,1000cyclictest0-21swapper21:25:550
6439921101041,1035cyclictest0-21swapper19:45:260
6439920611026,1014cyclictest0-21swapper19:18:280
6439920511048,910cyclictest134850irq/9-eth021:45:310
6439920291030,878cyclictest0-21swapper23:18:480
6439920101031,858cyclictest0-21swapper22:11:280
6439919871071,793cyclictest15536-21munin-node22:40:260
6439919781020,923cyclictest0-21swapper20:07:320
6439919681090,782cyclictest9-21ksoftirqd/022:59:120
6439919571020,847cyclictest0-21swapper19:38:140
643991928929,965cyclictest0-21swapper20:31:290
643991887892,981cyclictest0-21swapper21:43:400
643991858910,934cyclictest0-21swapper21:32:170
6439917791068,585cyclictest18882-21diskmemload21:15:420
6439916251078,455cyclictest0-21swapper20:39:010
6439916161076,446cyclictest0-21swapper22:16:400
6439914831087,360cyclictest0-21swapper19:22:500
6439911751002,173cyclictest0-21swapper19:14:570
2189826812,11sleep022196-21hwlatdetect-tra19:05:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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