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2026-03-13 - 22:48
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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 rackaslot8.osadl.org (updated Fri Mar 13, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
313882318288,19sleep20-21swapper/207:09:252
311482271240,20sleep10-21swapper/107:06:351
311412269235,20sleep00-21swapper/007:06:290
312132261228,22sleep30-21swapper/307:07:243
84632650,0sleep00-21swapper/010:38:590
238102640,0sleep00-21swapper/008:00:190
77632590,0sleep00-21swapper/011:16:430
77632590,0sleep00-21swapper/011:16:430
34582560,0sleep10-21swapper/108:30:101
251192560,0sleep00-21swapper/011:07:590
250192560,0sleep00-21swapper/009:11:210
115692550,0sleep10-21swapper/108:45:191
151222540,0sleep20-21swapper/210:23:282
105172540,0sleep10-21swapper/111:38:061
311732190,0sleep20-21swapper/209:15:152
8242180,0sleep00-21swapper/011:51:230
63032180,0sleep20-21swapper/209:58:532
311362180,0sleep10-21swapper/111:50:161
271752180,0sleep10-21swapper/109:51:271
176462150,0sleep00-21swapper/010:05:160
311372140,0sleep20-21swapper/209:54:282
31538991210,1cyclictest22-21ksoftirqd/108:30:001
258432120,0sleep10-21swapper/111:08:321
3153899119,1cyclictest22-21ksoftirqd/109:25:011
3153899109,1cyclictest22-21ksoftirqd/109:20:011
3153899108,1cyclictest22-21ksoftirqd/111:20:011
3153899108,1cyclictest22-21ksoftirqd/111:20:001
3153899108,1cyclictest22-21ksoftirqd/107:40:021
3153899107,2cyclictest22-21ksoftirqd/112:30:001
3153899107,2cyclictest22-21ksoftirqd/110:50:001
3153899103,1cyclictest141rcu_preempt08:00:101
315479996,2cyclictest13329-21ssh11:00:213
315479990,2cyclictest21898-21sshd12:04:493
315439996,2cyclictest658-21snmpd10:30:142
315389998,1cyclictest22-21ksoftirqd/112:40:011
315389998,1cyclictest22-21ksoftirqd/111:44:591
315389997,1cyclictest22-21ksoftirqd/111:30:001
18754290,0sleep30-21swapper/309:27:103
11042290,0sleep10-21swapper/112:17:021
6160280,0sleep20-21swapper/209:39:312
315439986,1cyclictest28-21ksoftirqd/211:40:012
315389987,1cyclictest22-21ksoftirqd/112:25:001
315389987,1cyclictest22-21ksoftirqd/109:00:001
315389987,1cyclictest22-21ksoftirqd/107:15:011
315389987,1cyclictest22-21ksoftirqd/107:15:011
315389986,2cyclictest22-21ksoftirqd/111:20:101
315389986,1cyclictest22-21ksoftirqd/107:15:011
315479973,3cyclictest658-21snmpd11:41:063
315479973,3cyclictest275-21systemd-journal12:20:493
315479973,3cyclictest275-21systemd-journal10:20:103
315479973,3cyclictest275-21systemd-journal09:40:293
315479971,4cyclictest275-21systemd-journal10:55:113
315479970,7cyclictest29452-21ssh12:09:033
315479970,7cyclictest0-21swapper/309:32:103
315439974,2cyclictest23407-21diskstats09:30:132
315439973,3cyclictest9401-21grep07:30:132
315439973,3cyclictest4883-21cron10:17:012
315439972,3cyclictest14489-21perf08:55:002
315389977,0cyclictest221ksoftirqd/110:30:001
315389976,1cyclictest22-21ksoftirqd/110:45:001
315389976,1cyclictest22-21ksoftirqd/110:40:001
315389976,1cyclictest22-21ksoftirqd/110:10:001
315389976,1cyclictest22-21ksoftirqd/109:30:001
315389976,1cyclictest22-21ksoftirqd/108:15:011
315389976,1cyclictest22-21ksoftirqd/108:10:011
315389976,1cyclictest22-21ksoftirqd/108:00:001
315389976,1cyclictest22-21ksoftirqd/107:50:001
315389976,1cyclictest211rcuc/110:55:001
315389975,2cyclictest22-21ksoftirqd/112:00:011
315389975,2cyclictest22-21ksoftirqd/111:05:011
315389974,2cyclictest22-21ksoftirqd/112:10:001
315389973,3cyclictest658-21snmpd07:28:411
315389972,2cyclictest23496-21munin-plugin-st09:50:001
315349973,3cyclictest275-21systemd-journal12:24:090
315349973,1cyclictest0-21swapper/010:18:520
315349972,2cyclictest15785-21awk12:40:010
315349971,3cyclictest7795-21munin-run08:40:000
315349970,6cyclictest22969-21ssh11:45:200
315349970,2cyclictest65850snmpd09:06:260
315479966,0cyclictest0-21swapper/311:22:233
315479966,0cyclictest0-21swapper/307:45:233
315479964,1cyclictest17798-21grep10:25:113
315479963,2cyclictest9400-21sh12:15:463
315479963,2cyclictest658-21snmpd10:03:233
315479963,2cyclictest658-21snmpd09:45:163
315479963,2cyclictest504-21dbus-daemon08:42:283
315479963,2cyclictest4751-21head11:15:143
315479963,2cyclictest4751-21head11:15:133
315479963,2cyclictest31550-21cron12:30:003
315479963,2cyclictest31429-21ssh10:33:113
315479963,2cyclictest29132-21ssh11:30:083
315479963,2cyclictest28855-21sh09:14:183
315479963,2cyclictest2813-21ssh10:15:253
315479963,2cyclictest275-21systemd-journal08:58:213
315479963,2cyclictest26862-21sh11:47:513
315479963,2cyclictest24940-21ssh11:27:063
315479963,2cyclictest22406-21sh11:05:533
315479963,2cyclictest18592-21ssh10:05:303
315479963,2cyclictest1067-21ssh11:51:333
315479962,3cyclictest8505-21expr12:35:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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