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2026-05-18 - 04:05
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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 792 highest latencies:
System rack6slot6 (updated Mon May 18, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
141679910707853434,53644cyclictest0-21swapper21:28:270
141679910702053422,53499cyclictest14426-21munin-node21:40:200
141679910696453482,53385cyclictest25371-21ssh23:28:520
141679910689553424,53408cyclictest3791-21ssh23:44:360
141679910681653473,53343cyclictest0-21swapper22:12:500
141679910671653449,53267cyclictest0-21swapper20:35:020
141679910670553428,53186cyclictest10137-21ssh23:53:190
141679910664453481,53066cyclictest2735-21ssh00:29:490
141679910662153467,53057cyclictest3922-21ssh22:57:130
141679910659153474,53025cyclictest19450irq/14-ata_piix22:01:570
141679910658353456,53038cyclictest19015-1kworker/u3:122:51:010
141679910657253395,53177cyclictest0-21swapper22:43:390
141679910654953392,53067cyclictest0-21swapper23:31:020
141679910654653388,53093cyclictest0-21swapper21:06:510
141679910648453466,53018cyclictest0-21swapper20:52:570
141679910647153444,53027cyclictest0-21swapper21:12:020
141679910645953406,53053cyclictest0-21swapper20:05:430
141679910645653406,53050cyclictest0-21swapper00:33:400
141679910644653399,53047cyclictest0-21swapper21:23:160
141679910644153397,53044cyclictest0-21swapper22:20:320
141679910643753398,52947cyclictest0-21swapper19:43:570
141679910633953425,52914cyclictest0-21swapper20:57:480
141679910632953463,52866cyclictest0-21swapper20:48:560
141679910630753463,52844cyclictest0-21swapper22:26:040
141679910623453410,52824cyclictest0-21swapper20:16:460
141679910618753414,52773cyclictest0-21swapper19:38:250
141679910604553035,53008cyclictest18225-21ssh22:30:550
141679910590552987,52916cyclictest8559-21ssh22:17:310
141679910588352976,52905cyclictest6563-21ssh23:48:070
141679910568252972,52707cyclictest30586-21ssh22:50:010
141679910514353053,52088cyclictest0-21swapper21:38:200
141679910507852989,52087cyclictest0-21swapper00:38:520
141679910499852903,52093cyclictest0-21swapper22:06:480
14167995395827,53886cyclictest0-21swapper19:27:020
14167995313326,53107cyclictest0-21swapper23:37:440
14167995307325,53048cyclictest0-21swapper00:16:050
14167995287929,52758cyclictest0-21swapper21:34:090
141679950942681,2410cyclictest2679-21devkit-power-da23:56:100
141679925351096,1340cyclictest23178-21ssh21:51:540
141679925261086,1314cyclictest11000-21rm23:07:360
141679923141083,1111cyclictest0-21swapper19:59:310
141679923041076,1108cyclictest0-21swapper23:17:380
141679922801088,1185cyclictest0-21swapper21:57:150
141679922561090,1099cyclictest5350irq/9-uhci_hcd:23:10:460
141679922111063,1050cyclictest32506-21ssh21:19:440
141679920921037,1021cyclictest0-21swapper00:09:230
141679920201036,890cyclictest0-21swapper20:41:130
141679919301031,806cyclictest0-21swapper00:03:020
141679919231030,799cyclictest0-21swapper20:28:100
141679919111038,780cyclictest0-21swapper22:38:270
14167991908942,928cyclictest2008550ssh21:47:430
141679918991037,796cyclictest8477-21kworker/u2:120:32:310
141679917521052,607cyclictest9-21ksoftirqd/000:11:340
141679916871053,634cyclictest0-21swapper00:24:380
141679916841101,583cyclictest0-21swapper21:01:490
141679916501079,571cyclictest0-21swapper19:45:470
141679915821082,435cyclictest9-21ksoftirqd/020:11:550
141679915771081,432cyclictest9-21ksoftirqd/019:54:500
14167991567738,826cyclictest0-21swapper23:24:000
141679915201007,420cyclictest0-21swapper19:34:540
141679915021013,425cyclictest0-21swapper20:01:320
141679914871014,381cyclictest9-21ksoftirqd/019:22:510
141679914641083,381cyclictest0-21swapper20:21:380
141679914301090,340cyclictest0-21swapper23:02:340
14167991161613,544cyclictest18917-21hwlatdetect-tra19:19:400
14167991160610,546cyclictest8904-21wc19:14:180
2748021710,2sleep027476-21grep19:05:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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