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2025-12-08 - 07:20
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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 Mon Dec 08, 2025 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
318189910717953478,53604cyclictest2114-21munin-node23:36:270
318189910703753425,53489cyclictest8974-21ssh22:27:470
318189910681753482,53214cyclictest30828-21ssh22:13:330
318189910675453471,53193cyclictest9-21ksoftirqd/023:50:210
318189910674153409,53241cyclictest0-21swapper22:20:050
318189910667153389,53194cyclictest3950irq/9-acpi22:31:480
318189910667053264,53392cyclictest0-21swapper20:31:440
318189910666653406,53171cyclictest3950irq/9-acpi00:15:380
318189910664353395,53248cyclictest0-21swapper21:06:040
318189910657553412,53099cyclictest9-21ksoftirqd/023:24:130
318189910650353470,53033cyclictest0-21swapper23:57:330
318189910649353465,53028cyclictest0-21swapper22:17:440
318189910648453459,53025cyclictest0-21swapper23:19:420
318189910646553408,53057cyclictest0-21swapper20:42:470
318189910645053463,52891cyclictest23713-21ssh21:19:170
318189910644653439,53007cyclictest0-21swapper00:24:210
318189910643253437,52995cyclictest0-21swapper21:33:320
318189910639253463,52866cyclictest3950irq/9-acpi21:35:120
318189910630253474,52828cyclictest0-21swapper20:27:430
318189910630153467,52834cyclictest0-21swapper19:59:350
318189910629953418,52817cyclictest9-21ksoftirqd/019:40:390
318189910629653417,52815cyclictest9-21ksoftirqd/019:24:550
318189910627553384,52798cyclictest0-21swapper20:19:500
318189910622653475,52751cyclictest0-21swapper19:54:230
318189910619153458,52733cyclictest0-21swapper19:39:390
318189910616453445,52719cyclictest0-21swapper22:45:120
318189910614753397,52750cyclictest0-21swapper20:09:580
318189910613653434,52702cyclictest0-21swapper21:02:130
318189910605352968,53083cyclictest0-21swapper23:31:150
318189910589953306,52593cyclictest0-21swapper00:33:230
318189910546053023,52434cyclictest5348-21ssh23:07:090
318189910545653112,52339cyclictest20251-21ssh21:14:360
318189910506152951,52108cyclictest0-21swapper21:29:100
318189910504452935,52108cyclictest0-21swapper22:04:000
31818995397153441,530cyclictest0-21swapper00:02:240
31818995389253394,498cyclictest0-21swapper19:32:070
31818995371726,53598cyclictest0-21swapper20:38:160
31818995365053382,206cyclictest3950irq/9-acpi21:59:190
31818995358253431,151cyclictest0-21swapper20:24:020
31818995356628,53446cyclictest0-21swapper19:46:010
31818995352720,53507cyclictest0-21swapper23:45:300
31818995334820,586cyclictest0-21swapper19:27:350
31818995332225,0cyclictest0-21swapper21:42:540
31818995325022,53135cyclictest0-21swapper20:49:090
3181899531197,53109cyclictest18685-21ssh22:40:310
31818995269023,52667cyclictest0-21swapper20:55:510
318189921981019,1053cyclictest1911-21snmpd23:10:500
318189920641054,886cyclictest1911-21snmpd20:52:100
318189920491021,1007cyclictest0-21swapper00:08:460
31818992031987,1010cyclictest0-21swapper21:52:170
318189920041038,870cyclictest27735-21ssh22:54:050
31818991987957,994cyclictest0-21swapper00:38:050
31818991966954,978cyclictest0-21swapper23:02:570
318189919591016,905cyclictest16831-21diskmemload23:26:040
318189919581064,805cyclictest3950irq/9-acpi00:27:120
318189919541101,728cyclictest2103-21runrttasks22:56:460
318189918641082,688cyclictest258502sleep020:11:580
318189918101031,655cyclictest25907-21ssh21:21:280
318189917791031,656cyclictest16516-21kworker/u2:300:12:070
318189917271096,631cyclictest0-21swapper23:41:080
31818991700994,672cyclictest17072-21ssh22:39:310
318189915621040,430cyclictest9-21ksoftirqd/022:09:520
318189914901005,421cyclictest0-21swapper20:02:150
318189914281094,334cyclictest0-21swapper21:48:260
31818991226692,522cyclictest10091-21hwlatdetect-tra19:10:500
31818991011598,408cyclictest31541-21hwlatdetect-tra19:19:130
3691258253,212sleep00-21swapper19:08:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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