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2026-08-24 - 09:56
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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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack5slot2.osadl.org (updated Mon Aug 24, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
222402202185,13sleep30-21swapper/319:07:093
224252198182,11sleep10-21swapper/119:09:321
222372189173,11sleep00-21swapper/019:07:060
221752166148,13sleep20-21swapper/219:06:192
91542500,0sleep30-21swapper/300:20:393
247902460,0sleep10-21swapper/122:01:371
286662450,0sleep10-21swapper/121:15:131
113542440,0sleep20-21swapper/221:39:042
107842430,0sleep20-21swapper/200:38:362
147312420,0sleep10-21swapper/123:35:011
25959260,0sleep10-21swapper/120:20:121
226279960,5cyclictest0-21swapper/021:00:100
27787250,0sleep10-21swapper/123:08:511
226359955,0cyclictest4330-21kworker/3:023:28:073
226359955,0cyclictest4330-21kworker/3:023:05:433
226359955,0cyclictest4330-21kworker/3:021:58:333
226359955,0cyclictest4330-21kworker/3:021:24:583
226359955,0cyclictest4330-21kworker/3:019:55:243
226359955,0cyclictest11642-21kworker/3:200:01:433
226359955,0cyclictest0-21swapper/322:53:513
226359950,4cyclictest0-21swapper/322:40:123
226359950,4cyclictest0-21swapper/319:45:133
226309951,2cyclictest0-21swapper/219:55:132
226309950,5cyclictest0-21swapper/222:35:172
226309950,5cyclictest0-21swapper/221:50:122
226309950,5cyclictest0-21swapper/200:32:422
226309950,4cyclictest0-21swapper/221:00:012
226309950,0cyclictest0-21swapper/200:12:022
226289950,5cyclictest0-21swapper/123:43:341
226289950,5cyclictest0-21swapper/123:03:581
226289950,5cyclictest0-21swapper/121:23:431
226289950,5cyclictest0-21swapper/100:32:531
226279955,0cyclictest0-21swapper/023:19:160
226279954,1cyclictest0-21swapper/023:02:410
226279953,1cyclictest28440-21cron00:15:010
226279950,5cyclictest3445-21apt-get20:40:110
226279950,5cyclictest28420-21apt-get20:25:010
226279950,5cyclictest0-21swapper/023:30:020
226279950,5cyclictest0-21swapper/021:42:400
226279950,3cyclictest0-21swapper/000:20:290
226279950,3cyclictest0-21swapper/000:03:130
226279950,2cyclictest28266-21perf19:20:000
226359944,0cyclictest4330-21kworker/3:020:40:113
226359944,0cyclictest4330-21kworker/3:020:28:583
226359944,0cyclictest4330-21kworker/3:020:17:473
226359944,0cyclictest4330-21kworker/3:020:06:353
226359944,0cyclictest4330-21kworker/3:019:33:013
226359944,0cyclictest40-21ksoftirqd/300:10:003
226359944,0cyclictest11642-21kworker/3:223:50:323
226359941,2cyclictest0-21swapper/323:40:093
226359941,1cyclictest0-21swapper/322:20:123
226359940,4cyclictest28483-21apt-get19:20:123
226359940,4cyclictest22456-21ssh22:16:473
226359940,4cyclictest19918-21perl00:10:163
226359940,4cyclictest0-21swapper/323:45:373
226359940,4cyclictest0-21swapper/323:15:103
226359940,4cyclictest0-21swapper/322:55:133
226359940,4cyclictest0-21swapper/322:45:123
226359940,4cyclictest0-21swapper/322:25:103
226359940,4cyclictest0-21swapper/322:14:013
226359940,4cyclictest0-21swapper/321:45:193
226359940,4cyclictest0-21swapper/321:38:363
226359940,4cyclictest0-21swapper/321:30:123
226359940,4cyclictest0-21swapper/319:41:473
226359940,4cyclictest0-21swapper/300:30:213
226359940,4cyclictest0-21swapper/300:28:173
226359940,4cyclictest0-21swapper/300:16:493
226359940,3cyclictest4839-21ssh23:30:013
226359940,3cyclictest3415-21sed20:40:003
226359940,3cyclictest30685-21apt-get22:05:143
226359940,3cyclictest26594-21irqstats22:35:163
226359940,3cyclictest20412-21ssh22:32:033
226359940,3cyclictest19705-21latency_hist23:05:023
226359940,3cyclictest18570-21ssh21:42:213
226359940,3cyclictest17382-21apt-config23:20:013
226359940,3cyclictest14338-21kernelversion21:00:143
226359940,3cyclictest0-21swapper/322:00:113
226359940,3cyclictest0-21swapper/321:50:043
226359940,3cyclictest0-21swapper/320:50:133
226359940,3cyclictest0-21swapper/300:35:003
226359940,0cyclictest0-21swapper/321:25:233
226309944,0cyclictest0-21swapper/223:58:322
226309943,1cyclictest11090-21ssh23:00:152
226309941,3cyclictest802-21snmpd23:51:092
226309941,3cyclictest12594-21ls21:55:202
226309941,2cyclictest0-21swapper/219:20:122
226309941,1cyclictest0-21swapper/222:15:122
226309941,1cyclictest0-21swapper/220:20:112
226309940,4cyclictest7121-21irqstats21:20:172
226309940,4cyclictest25986-21apt-get19:15:112
226309940,4cyclictest25395-21diskstats23:40:112
226309940,4cyclictest18053-21diskmemload22:40:412
226309940,4cyclictest18053-21diskmemload00:26:502
226309940,4cyclictest0-21swapper/223:46:502
226309940,4cyclictest0-21swapper/223:22:242
226309940,4cyclictest0-21swapper/223:05:122
226309940,4cyclictest0-21swapper/222:25:102
226309940,4cyclictest0-21swapper/222:06:572
226309940,4cyclictest0-21swapper/221:45:122
226309940,4cyclictest0-21swapper/220:42:222
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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