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2026-08-12 - 09:46
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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 Wed Aug 12, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
37189910743753415,53926cyclictest21077-21diskmemload23:24:340
37189910684553419,53426cyclictest26044-21ssh21:15:570
37189910668753356,53312cyclictest3950irq/9-acpi23:05:290
37189910667353386,53196cyclictest3757-21kworker/0:122:25:570
37189910664253462,53180cyclictest0-21swapper23:01:580
37189910659253437,53155cyclictest0-21swapper00:34:440
37189910658953473,53025cyclictest0-21swapper21:20:590
37189910658353470,53049cyclictest0-21swapper21:13:460
37189910657553419,53156cyclictest0-21swapper22:21:360
37189910654453411,53133cyclictest0-21swapper19:54:040
37189910653653440,53096cyclictest0-21swapper00:19:400
37189910650453392,53112cyclictest0-21swapper19:48:520
37189910648153418,53063cyclictest0-21swapper22:07:420
37189910646953454,53015cyclictest0-21swapper22:53:550
37189910646153454,53007cyclictest0-21swapper19:29:160
37189910643953437,53002cyclictest0-21swapper22:57:060
37189910643753437,53000cyclictest0-21swapper23:39:080
37189910642553410,52951cyclictest11-21rcu_preempt21:25:400
37189910641753436,52981cyclictest0-21swapper23:16:420
37189910638053318,53039cyclictest13842-21ssh00:09:270
37189910635653462,52894cyclictest0-21swapper20:51:100
37189910634253456,52886cyclictest0-21swapper20:41:170
37189910634153456,52885cyclictest0-21swapper21:00:530
37189910631853390,52863cyclictest0-21swapper19:16:430
37189910627853462,52753cyclictest9-21ksoftirqd/020:33:550
37189910623053478,52752cyclictest0-21swapper20:13:190
37189910621753475,52742cyclictest0-21swapper20:37:460
37189910620753467,52740cyclictest0-21swapper20:46:490
37189910609253416,52676cyclictest0-21swapper20:16:100
37189910538253054,52328cyclictest0-21swapper22:36:500
37189910535053018,52329cyclictest869-21runrttasks00:37:550
37189910509052994,52094cyclictest9-21ksoftirqd/021:43:450
3718995391453381,468cyclictest9-21ksoftirqd/022:47:030
3718995368753386,237cyclictest0-21swapper20:22:420
3718995362125,53529cyclictest10-21rcuc/022:32:590
3718995353324,53417cyclictest0-21swapper19:10:010
3718995347253472,0cyclictest0-21swapper00:21:510
3718995313026,53104cyclictest0-21swapper20:00:150
3718995300952983,24cyclictest0-21swapper22:42:320
3718995292726,52901cyclictest0-21swapper19:41:500
3718995287828,52784cyclictest0-21swapper23:47:010
3718995275231,52721cyclictest0-21swapper20:26:430
37189924681087,1280cyclictest21077-21diskmemload21:52:480
37189922841103,1058cyclictest26341-21ssh00:27:220
37189922591046,1168cyclictest3950irq/9-acpi00:02:350
37189922271069,1059cyclictest24540-21ssh22:01:100
37189921341031,981cyclictest21100-21ssh23:31:260
37189920811098,884cyclictest17917-21ssh23:26:550
37189920681076,896cyclictest0-21swapper19:32:370
37189920571021,1001cyclictest28265-21ssh23:42:190
37189920461005,1005cyclictest0-21swapper21:07:150
37189920341035,999cyclictest0-21swapper23:56:130
37189920241035,867cyclictest0-21swapper22:12:430
37189920221003,984cyclictest21077-21diskmemload21:39:440
37189920191056,869cyclictest7132-21kworker/0:200:13:480
37189919911034,865cyclictest0-21swapper21:59:500
37189919841032,862cyclictest0-21swapper21:47:160
37189918831031,787cyclictest3950irq/9-acpi19:24:150
3718991865888,963cyclictest0-21swapper23:53:320
3718991697873,799cyclictest1691-21ssh22:15:240
3718991688941,710cyclictest5238-21ssh21:33:420
37189916541097,557cyclictest0-21swapper20:56:210
37189915911081,510cyclictest0-21swapper19:36:380
37189915851001,491cyclictest9113-21kworker/0:319:59:150
37189915651069,496cyclictest0-21swapper20:07:470
37189915161042,408cyclictest0-21swapper23:11:500
2814261286,206sleep00-21swapper19:05:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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