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2026-06-28 - 12:06
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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 Sun Jun 28, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29489910696853465,53439cyclictest20707-1kworker/u3:022:31:060
29489910675353477,53276cyclictest0-21swapper20:57:290
29489910663253418,53125cyclictest5350irq/9-uhci_hcd:23:42:260
29489910662153463,53158cyclictest0-21swapper21:44:120
29489910655053387,53098cyclictest0-21swapper22:23:330
29489910652153478,53043cyclictest0-21swapper23:20:300
29489910650953473,53036cyclictest0-21swapper19:49:390
29489910650753472,53035cyclictest0-21swapper00:24:180
29489910650553470,53035cyclictest0-21swapper20:33:120
29489910650353472,53031cyclictest0-21swapper23:54:200
29489910648653458,53028cyclictest0-21swapper00:04:330
29489910646853455,53013cyclictest0-21swapper21:24:360
29489910645853450,53008cyclictest0-21swapper20:52:570
29489910644653401,53045cyclictest0-21swapper20:15:370
29489910641853428,52990cyclictest0-21swapper23:49:480
29489910641153427,52984cyclictest0-21swapper00:10:440
29489910640053419,52981cyclictest0-21swapper22:25:440
29489910624253388,52762cyclictest0-21swapper19:52:200
29489910623253479,52753cyclictest0-21swapper00:16:360
29489910622253474,52748cyclictest0-21swapper20:39:440
29489910620453423,52781cyclictest0-21swapper22:06:590
29489910618353453,52730cyclictest0-21swapper21:53:550
29489910618353413,52770cyclictest0-21swapper23:07:260
29489910616753446,52721cyclictest0-21swapper20:05:040
29489910616053392,52768cyclictest0-21swapper23:29:120
29489910613553460,52675cyclictest0-21swapper23:04:050
29489910532153039,52282cyclictest0-21swapper20:40:440
2948995392453459,465cyclictest0-21swapper19:36:150
2948995386153423,438cyclictest0-21swapper22:18:020
2948995385553416,439cyclictest0-21swapper20:24:190
2948995380926,53692cyclictest0-21swapper00:35:010
2948995365526,53629cyclictest0-21swapper21:57:060
2948995359753421,176cyclictest0-21swapper19:28:330
2948995359153415,176cyclictest0-21swapper00:31:200
2948995354224,0cyclictest0-21swapper20:48:460
2948995347712,53465cyclictest0-21swapper23:14:080
2948995334826,53322cyclictest0-21swapper21:31:080
2948995327424,463cyclictest0-21swapper19:32:240
2948995319426,0cyclictest0-21swapper23:37:250
294899530788,53068cyclictest0-21swapper21:35:300
2948995307727,53050cyclictest0-21swapper21:06:510
2948995306825,53043cyclictest0-21swapper21:11:230
2948995304753022,24cyclictest0-21swapper22:37:380
2948995298552940,43cyclictest0-21swapper23:17:090
2948995290912,52897cyclictest0-21swapper19:57:010
2948995277625,52751cyclictest0-21swapper20:12:560
29489924681098,1243cyclictest2963-21diskmemload00:28:090
29489920541002,1017cyclictest0-21swapper21:48:430
29489920331048,891cyclictest3950irq/9-acpi21:29:280
29489920191018,967cyclictest0-21swapper22:41:490
29489920171038,945cyclictest3950irq/9-acpi22:49:310
2948992010985,1004cyclictest0-21swapper22:55:020
29489919551065,767cyclictest9-21ksoftirqd/023:33:440
29489919391077,862cyclictest0-21swapper21:17:140
2948991931988,905cyclictest9377-21ssh22:54:320
29489919131041,778cyclictest0-21swapper20:03:230
29489918611075,786cyclictest0-21swapper00:08:240
2948991803936,832cyclictest0-21swapper23:57:300
2948991764996,730cyclictest539-21crond21:04:000
29489917411097,553cyclictest9-21ksoftirqd/020:29:000
29489916471041,606cyclictest0-21swapper22:03:580
29489916011093,508cyclictest0-21swapper22:10:400
29489915151002,420cyclictest0-21swapper19:41:470
2948991081615,463cyclictest29191-21grep19:14:190
2948991068607,458cyclictest16087-21hwlatdetect-tra19:20:310
2948991020583,434cyclictest21282-21grep19:16:090
191062900,1sleep019102-21grep19:05:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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