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2026-03-16 - 02:26
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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 Mar 16, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33532201184,12sleep00-21swapper/019:05:060
53102199182,12sleep10-21swapper/119:06:321
52822188170,13sleep30-21swapper/319:06:093
54402123107,11sleep20-21swapper/219:08:142
239352440,0sleep10-21swapper/120:50:121
86832430,0sleep20-21swapper/221:13:082
206572420,1sleep1211ktimersoftd/100:10:571
292762390,0sleep10-21swapper/121:38:321
13512150,0sleep10-21swapper/123:14:571
64712100,0sleep00-21swapper/023:16:480
575899104,3cyclictest21474-21sendmail-msp19:40:010
24972100,0sleep20-21swapper/221:56:192
5404290,0sleep10-21swapper/121:42:251
57589973,4cyclictest417-21munin-run21:25:010
27152270,0sleep10-21swapper/122:08:391
57719966,0cyclictest40-21ksoftirqd/321:00:013
57719964,2cyclictest4320-21kworker/3:220:10:553
57589965,1cyclictest17908-21/usr/sbin/munin00:25:190
57589962,2cyclictest0-21swapper/020:30:120
57589961,4cyclictest0-21swapper/020:00:130
57589960,3cyclictest22394-21awk21:20:000
57719955,0cyclictest4320-21kworker/3:223:54:523
57719955,0cyclictest4320-21kworker/3:223:43:403
57719955,0cyclictest4320-21kworker/3:222:58:523
57719955,0cyclictest4320-21kworker/3:222:25:173
57719955,0cyclictest4320-21kworker/3:222:02:533
57719955,0cyclictest4320-21kworker/3:221:51:433
57719955,0cyclictest4320-21kworker/3:221:40:313
57719955,0cyclictest4320-21kworker/3:219:59:433
57719955,0cyclictest4320-21kworker/3:200:39:403
57719955,0cyclictest4320-21kworker/3:200:17:143
57719954,1cyclictest4320-21kworker/3:221:18:053
57719950,5cyclictest0-21swapper/321:33:333
57719950,0cyclictest0-21swapper/323:00:423
57719950,0cyclictest0-21swapper/322:30:353
57679955,0cyclictest0-21swapper/222:25:092
57679950,5cyclictest0-21swapper/223:11:262
57679950,5cyclictest0-21swapper/222:23:422
57679950,5cyclictest0-21swapper/219:25:112
57679950,5cyclictest0-21swapper/200:35:142
57679950,5cyclictest0-21swapper/200:25:292
57679950,5cyclictest0-21swapper/200:08:102
57679950,0cyclictest0-21swapper/223:24:502
57679950,0cyclictest0-21swapper/222:00:262
57629951,2cyclictest0-21swapper/123:30:111
57629950,5cyclictest0-21swapper/123:00:531
57629950,5cyclictest0-21swapper/121:21:571
57629950,5cyclictest0-21swapper/119:50:161
57589955,0cyclictest0-21swapper/022:56:170
57589955,0cyclictest0-21swapper/000:20:480
57589952,2cyclictest0-21swapper/020:05:120
57589951,4cyclictest31383-21perf20:00:010
57589951,3cyclictest0-21swapper/019:15:010
57589950,5cyclictest1360-21diskmemload23:51:250
57589950,5cyclictest1360-21diskmemload23:35:420
57589950,5cyclictest0-21swapper/023:55:550
57589950,5cyclictest0-21swapper/023:29:000
57589950,5cyclictest0-21swapper/021:27:490
57589950,5cyclictest0-21swapper/000:38:080
57589950,5cyclictest0-21swapper/000:00:260
57589950,4cyclictest0-21swapper/019:25:120
57719944,0cyclictest57250irq/130-eth021:35:443
57719944,0cyclictest4320-21kworker/3:223:10:033
57719944,0cyclictest4320-21kworker/3:219:14:563
57719944,0cyclictest0-21swapper/323:32:423
57719944,0cyclictest0-21swapper/300:02:413
57719943,0cyclictest40-21ksoftirqd/322:40:003
57719941,3cyclictest0-21swapper/300:05:173
57719940,4cyclictest24132-21ssh00:29:073
57719940,4cyclictest11349-21irqstats21:45:153
57719940,4cyclictest0-21swapper/323:55:063
57719940,4cyclictest0-21swapper/323:05:123
57719940,4cyclictest0-21swapper/322:50:343
57719940,3cyclictest8934-21sh00:21:083
57719940,3cyclictest8624-21sh23:18:073
57719940,3cyclictest8493-21munin-node19:15:003
57719940,3cyclictest7105-21df20:15:133
57719940,3cyclictest4938-21sh22:13:343
57719940,3cyclictest3423-21ssh21:56:543
57719940,3cyclictest32382-21hddtemp_smartct21:05:153
57719940,3cyclictest31595-21/usr/sbin/munin20:00:153
57719940,3cyclictest28144-21/usr/sbin/munin22:40:143
57719940,3cyclictest25831-21sh00:30:023
57719940,3cyclictest25671-21cut19:45:183
57719940,3cyclictest23486-21sh22:06:273
57719940,3cyclictest21773-21sh22:21:133
57719940,3cyclictest18265-21sh23:22:443
57719940,3cyclictest16665-21grep20:35:133
57719940,3cyclictest1403-21latency_hist20:05:013
57719940,3cyclictest12793-21/usr/sbin/munin23:35:223
57719940,3cyclictest1085-21sh23:45:313
57719940,3cyclictest0-21swapper/319:20:033
57719940,1cyclictest29074-21/usr/sbin/munin21:00:113
57719940,1cyclictest19200-21/usr/sbin/munin19:35:163
57719940,1cyclictest14017-21/usr/sbin/munin20:30:153
57719940,0cyclictest0-21swapper/323:26:013
57679944,0cyclictest0-21swapper/221:25:212
57679944,0cyclictest0-21swapper/221:16:382
57679943,1cyclictest6525-21apt-get22:30:122
57679942,2cyclictest814-21snmpd21:22:262
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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