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2025-10-21 - 07:35
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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 100 highest latencies:
System rack6slot6 (updated Tue Oct 21, 2025 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
172309910723253426,53683cyclictest2767-21gnome-settings-21:05:230
172309910676653458,53308cyclictest0-21swapper00:26:410
172309910660153471,53130cyclictest0-21swapper19:37:480
172309910658453450,53070cyclictest9-21ksoftirqd/021:13:450
172309910658153449,53068cyclictest9-21ksoftirqd/022:01:090
172309910655253450,53102cyclictest0-21swapper22:38:200
172309910651453471,53043cyclictest0-21swapper20:24:310
172309910650553475,53030cyclictest0-21swapper23:41:080
172309910649853466,53032cyclictest0-21swapper00:06:550
172309910648353458,53025cyclictest0-21swapper23:19:420
172309910645753473,52984cyclictest0-21swapper00:02:240
172309910645453447,52944cyclictest133750irq/9-eth022:56:250
172309910645353403,53050cyclictest0-21swapper21:01:520
172309910645153400,53051cyclictest0-21swapper23:06:380
172309910642853432,52996cyclictest0-21swapper19:59:440
172309910640253455,52884cyclictest9-21ksoftirqd/021:35:120
172309910632753465,52798cyclictest9-21ksoftirqd/019:46:400
172309910629353451,52777cyclictest9-21ksoftirqd/019:34:570
172309910622653430,52796cyclictest0-21swapper23:56:320
172309910621753474,52743cyclictest0-21swapper22:46:420
172309910617953453,52726cyclictest0-21swapper20:08:060
172309910616853475,52693cyclictest0-21swapper20:15:290
172309910616853406,52762cyclictest0-21swapper20:36:250
172309910615353032,53119cyclictest0-21swapper00:36:040
172309910586953380,52476cyclictest0-21swapper19:12:200
172309910527052916,52352cyclictest11218-21ssh23:38:470
172309910517253050,52122cyclictest0-21swapper21:20:270
172309910510152979,52117cyclictest0-21swapper20:50:390
172309910505652965,52089cyclictest0-21swapper22:34:290
172309910499252907,52083cyclictest0-21swapper19:18:320
17230995356227,53443cyclictest0-21swapper21:27:190
17230995350426,0cyclictest0-21swapper23:46:090
17230995344724,53423cyclictest0-21swapper21:19:070
17230995341726,53391cyclictest0-21swapper23:52:210
17230995314025,208cyclictest9-21ksoftirqd/020:25:520
17230995313326,53107cyclictest0-21swapper20:59:310
17230995308627,53059cyclictest0-21swapper00:31:220
17230995307326,53047cyclictest0-21swapper23:13:000
17230995301828,52926cyclictest0-21swapper19:53:220
172309922741092,1058cyclictest326-21ssh23:23:530
172309922691093,1052cyclictest2141-21diskmemload22:44:210
172309922691092,1056cyclictest2141-21diskmemload22:51:540
172309922621087,1050cyclictest2141-21diskmemload22:15:330
172309922321024,1189cyclictest14083-21ssh22:12:120
172309920731080,899cyclictest0-21swapper23:26:130
172309920691025,1009cyclictest0-21swapper20:01:140
172309920641021,1008cyclictest0-21swapper00:12:470
172309920531014,1002cyclictest2141-21diskmemload21:42:440
172309920221010,978cyclictest133750irq/9-eth021:57:280
17230992014979,1000cyclictest0-21swapper20:11:570
172309919941033,866cyclictest0-21swapper22:21:350
172309919721006,875cyclictest3950irq/9-acpi00:23:400
17230991958996,942cyclictest3950irq/9-acpi23:04:570
172309919511043,818cyclictest0-21swapper21:46:550
17230991949952,974cyclictest0-21swapper19:27:450
172309919411039,809cyclictest0-21swapper20:34:440
17230991891957,917cyclictest22823-21kworker/u2:222:28:070
172309917461095,651cyclictest0-21swapper21:34:310
172309916731001,672cyclictest0-21swapper19:20:030
17230991569760,806cyclictest0-21swapper22:09:010
172309915591084,411cyclictest9-21ksoftirqd/000:18:490
17230991535713,819cyclictest0-21swapper20:46:270
17230991497681,813cyclictest0-21swapper19:42:090
172309914931067,362cyclictest0-21swapper21:54:470
172309914821004,389cyclictest0-21swapper20:41:360
172309914641100,364cyclictest0-21swapper23:33:050
17058259151,209sleep00-21swapper19:09:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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