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2026-09-07 - 08:22
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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 Sep 07, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14682196178,13sleep30-21swapper/319:07:533
14702194178,12sleep00-21swapper/019:07:540
15742176161,11sleep10-21swapper/119:09:121
13402171152,14sleep20-21swapper/219:06:122
247542470,0sleep10-21swapper/100:20:131
56462110,0sleep00-21swapper/022:17:210
280432110,0sleep00-21swapper/023:49:380
4482100,0sleep30-21swapper/321:26:523
18359970,6cyclictest29899-21diskmemload23:35:113
18359966,0cyclictest40-21ksoftirqd/323:30:013
18359966,0cyclictest40-21ksoftirqd/323:30:013
18299962,3cyclictest0-21swapper/100:15:111
18299961,3cyclictest0-21swapper/121:35:121
18299961,3cyclictest0-21swapper/120:30:131
18299961,3cyclictest0-21swapper/119:15:131
18299961,3cyclictest0-21swapper/100:10:131
18259960,1cyclictest1637-21sh21:11:210
28999250,0sleep10-21swapper/121:56:581
18359955,0cyclictest16177-21kworker/3:122:35:393
18359955,0cyclictest16177-21kworker/3:100:05:123
18359954,1cyclictest40-21ksoftirqd/319:25:003
18359954,1cyclictest16177-21kworker/3:123:42:493
18359950,5cyclictest0-21swapper/323:52:163
18359950,5cyclictest0-21swapper/322:55:573
18359950,5cyclictest0-21swapper/300:30:113
18359950,5cyclictest0-21swapper/300:17:523
18359950,4cyclictest2072-21df23:20:133
18319953,2cyclictest20059-21kworker/2:023:03:222
18319953,2cyclictest20059-21kworker/2:000:36:042
18319950,5cyclictest21190-21ssh22:09:332
18319950,0cyclictest81rcu_preempt20:35:002
18319950,0cyclictest0-21swapper/200:18:282
18299953,1cyclictest0-21swapper/123:55:121
18299952,2cyclictest3767-21chrt23:53:261
18299952,2cyclictest0-21swapper/121:40:131
18299952,2cyclictest0-21swapper/121:20:121
18299952,2cyclictest0-21swapper/119:55:121
18299952,2cyclictest0-21swapper/119:40:141
18299951,3cyclictest0-21swapper/119:20:101
18299951,2cyclictest0-21swapper/123:05:121
18299951,2cyclictest0-21swapper/120:05:131
18299950,5cyclictest0-21swapper/121:48:331
18259951,3cyclictest802-21snmpd22:11:030
18259950,5cyclictest0-21swapper/023:52:420
11485250,0sleep20-21swapper/200:13:302
7071240,0sleep00-21swapper/021:30:180
25118240,0sleep10-21swapper/100:04:191
18359944,0cyclictest40-21ksoftirqd/321:10:013
18359944,0cyclictest40-21ksoftirqd/300:20:133
18359944,0cyclictest16177-21kworker/3:122:13:153
18359944,0cyclictest0-21swapper/323:55:013
18359944,0cyclictest0-21swapper/320:00:013
18359943,1cyclictest7733-21grep20:25:003
18359943,1cyclictest40-21ksoftirqd/322:40:133
18359943,1cyclictest21860-21ssh00:35:123
18359943,1cyclictest18304-21cut19:40:153
18359942,1cyclictest802-21snmpd20:40:443
18359942,1cyclictest17965-21ssh22:07:333
18359942,1cyclictest11599-21ntpq20:30:173
18359940,4cyclictest16779-21python19:35:193
18359940,4cyclictest0-21swapper/323:45:113
18359940,4cyclictest0-21swapper/323:15:123
18359940,4cyclictest0-21swapper/323:05:123
18359940,4cyclictest0-21swapper/321:45:423
18359940,4cyclictest0-21swapper/321:40:143
18359940,4cyclictest0-21swapper/321:30:143
18359940,4cyclictest0-21swapper/300:00:133
18359940,3cyclictest8028-21ssh21:15:093
18359940,3cyclictest6927-21ssh00:10:353
18359940,3cyclictest3524-21ssh22:32:253
18359940,3cyclictest25188-21/usr/sbin/munin21:00:133
18359940,3cyclictest25160-21/usr/sbin/munin19:55:133
18359940,3cyclictest24876-21df21:55:123
18359940,3cyclictest24083-21ssh23:30:373
18359940,3cyclictest2191-21sed22:15:203
18359940,3cyclictest21089-21ssh21:20:493
18359940,3cyclictest20479-21/usr/sbin/munin22:25:143
18359940,3cyclictest1769-21ssh21:11:263
18359940,3cyclictest14492-21cut23:10:153
18359940,3cyclictest14259-21ssh21:50:143
18359940,3cyclictest13174-21seq20:35:133
18359940,3cyclictest10925-21ssh22:04:353
18359940,3cyclictest10325-21ssh22:20:073
18359940,3cyclictest0-21swapper/322:50:153
18359940,3cyclictest0-21swapper/322:45:353
18359940,3cyclictest0-21swapper/319:10:023
18359940,3cyclictest0-21swapper/300:25:203
18359940,1cyclictest81rcu_preempt23:00:143
18359940,0cyclictest0-21swapper/321:37:403
18319944,0cyclictest7417-21ssh00:27:302
18319944,0cyclictest31-21ksoftirqd/223:20:142
18319944,0cyclictest31-21ksoftirqd/220:00:202
18319944,0cyclictest0-21swapper/223:50:062
18319944,0cyclictest0-21swapper/222:57:172
18319944,0cyclictest0-21swapper/222:34:092
18319944,0cyclictest0-21swapper/200:21:142
18319944,0cyclictest0-21swapper/200:03:562
18319943,1cyclictest31-21ksoftirqd/222:25:002
18319943,1cyclictest31-21ksoftirqd/219:40:012
18319942,2cyclictest20059-21kworker/2:023:27:422
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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