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2026-07-22 - 01:17
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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 Tue Jul 21, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
237919910758253459,54026cyclictest1907-21snmpd08:58:410
237919910683953412,53336cyclictest0-21swapper08:42:260
237919910679653452,53253cyclictest0-21swapper09:08:240
237919910671553392,53257cyclictest0-21swapper10:49:330
237919910671353423,53195cyclictest2099-21runrttasks08:17:290
237919910667753447,53134cyclictest24029-21ssh09:31:100
237919910663853416,53157cyclictest9-21ksoftirqd/010:58:550
237919910662453410,53150cyclictest9-21ksoftirqd/009:52:560
237919910660053415,53094cyclictest9-21ksoftirqd/012:12:270
237919910658153478,53103cyclictest0-21swapper09:20:070
237919910655753451,53106cyclictest0-21swapper12:34:530
237919910654053442,53098cyclictest0-21swapper10:34:380
237919910653953445,53094cyclictest0-21swapper09:26:490
237919910653153442,53089cyclictest0-21swapper08:26:420
237919910651053447,53063cyclictest0-21swapper09:01:220
237919910650953446,53063cyclictest0-21swapper12:06:350
237919910650753473,53034cyclictest0-21swapper10:38:500
237919910649353471,53022cyclictest0-21swapper11:53:210
237919910649253474,52922cyclictest3164-21ssh11:24:330
237919910649253464,53028cyclictest0-21swapper07:21:430
237919910646553408,53057cyclictest0-21swapper12:24:500
237919910646353454,53009cyclictest0-21swapper09:41:130
237919910646253409,53053cyclictest0-21swapper11:19:410
237919910646153469,52992cyclictest0-21swapper07:18:120
237919910646053408,53052cyclictest0-21swapper10:15:330
237919910641053419,52991cyclictest0-21swapper08:23:310
237919910640853421,52987cyclictest0-21swapper12:25:300
237919910639753423,52974cyclictest0-21swapper08:54:090
237919910635553443,52848cyclictest9-21ksoftirqd/007:25:340
237919910632653417,52843cyclictest9-21ksoftirqd/008:34:240
237919910631453387,52864cyclictest0-21swapper08:11:170
237919910629953468,52831cyclictest0-21swapper08:47:380
237919910629653471,52825cyclictest0-21swapper09:55:070
237919910621753476,52741cyclictest0-21swapper07:35:470
237919910619353464,52729cyclictest0-21swapper12:04:140
237919910619053458,52732cyclictest0-21swapper08:36:040
237919910619053418,52772cyclictest0-21swapper07:48:100
237919910618453415,52769cyclictest0-21swapper07:44:490
237919910617653469,52707cyclictest0-21swapper11:08:480
237919910616953447,52722cyclictest0-21swapper11:04:170
237919910616853447,52721cyclictest0-21swapper11:57:120
237919910615353443,52710cyclictest0-21swapper12:37:540
237919910613553431,52704cyclictest0-21swapper08:05:450
237919910612453426,52698cyclictest0-21swapper07:52:520
237919910575952977,52780cyclictest27494-21ssh09:36:220
237919910560853002,52604cyclictest26165-21ssh10:22:250
237919910513753029,52106cyclictest0-21swapper10:28:370
237919910512353031,52090cyclictest0-21swapper11:14:000
23791995372415,53589cyclictest0-21swapper10:40:100
23791995358925,53470cyclictest0-21swapper09:11:550
23791995349725,0cyclictest0-21swapper09:47:050
23791995339828,567cyclictest9-21ksoftirqd/011:46:390
23791995313124,53107cyclictest0-21swapper10:09:110
23791995313025,53105cyclictest0-21swapper08:02:040
23791995312625,53101cyclictest0-21swapper07:32:560
237919923691095,1150cyclictest20152-21ssh10:14:020
237919923531026,1234cyclictest9-21ksoftirqd/011:28:240
23791992224980,1203cyclictest14827-21ssh09:18:160
237919921771043,1101cyclictest3950irq/9-acpi11:40:370
237919921281038,1025cyclictest3950irq/9-acpi12:16:080
237919920861046,1006cyclictest0-21swapper10:01:290
23791992056986,1035cyclictest0-21swapper07:14:510
23791991966973,958cyclictest0-21swapper11:33:550
237919916921091,507cyclictest9-21ksoftirqd/010:54:040
237919915591039,426cyclictest9-21ksoftirqd/007:57:330
237919915221065,457cyclictest0-21swapper11:37:360
23577264786,241sleep00-21swapper07:09:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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