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2026-06-09 - 13:42
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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
Characteristics of all highest latencies:
System rack6slot5.osadl.org (updated Tue Jun 09, 2026 00:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
270859997385187,4540cyclictest5019-21kworker/0:119:15:300
270859973143635,3619cyclictest5019-21kworker/0:119:14:030
270859970573734,3308cyclictest31083-21kworker/0:019:25:170
270859963333145,3128cyclictest31083-21kworker/0:019:22:020
259742608182,203sleep00-21swapper19:05:190
270859954035,490cyclictest2438-21basename22:15:170
270859952932,434cyclictest6205-21sed23:40:480
270859952433,429cyclictest15934-21ntp_states21:30:220
270859952431,431cyclictest10215-21mailstats19:50:120
270859952330,422cyclictest20079-21fschecks_time22:56:330
270859951955,394cyclictest7267-21diskmemload22:25:580
270859951632,423cyclictest25441-21tune2fs21:51:360
270859951555,397cyclictest7267-21diskmemload23:25:210
270859951532,413cyclictest23959-21sh21:49:070
270859951454,399cyclictest7267-21diskmemload21:21:000
270859951355,397cyclictest7267-21diskmemload21:40:240
270859951331,419cyclictest439-21latency_hist00:45:030
270859950856,438cyclictest2699-21ssh23:32:180
270859950855,439cyclictest13685-21ssh23:58:550
270859950855,392cyclictest8533-21strings23:46:030
270859950854,439cyclictest15572-21ssh21:29:190
270859950755,391cyclictest19078-21strings00:11:040
270859950755,381cyclictest27202-21strings21:56:070
270859950655,390cyclictest7267-21diskmemload00:32:390
270859950653,439cyclictest4925-21ssh23:37:130
270859950055,260cyclictest30459-21ssh22:05:000
270859949855,382cyclictest7267-21diskmemload00:02:160
270859949732,395cyclictest10820-21ssh22:35:340
270859949632,448cyclictest8377-21munin-node22:31:210
270859947556,360cyclictest7267-21diskmemload22:09:560
270859947455,359cyclictest7267-21diskmemload00:18:440
270859947055,354cyclictest7267-21diskmemload21:39:290
270859946829,424cyclictest28061-21ssh23:15:520
270859946771,373cyclictest13-21rcuc/022:21:360
270859946134,411cyclictest187562chrt22:54:520
270859946133,412cyclictest1705-21sshd22:12:140
270859946129,417cyclictest16191-21ssh00:05:180
270859945655,331cyclictest4684-21sendmail_mailst19:35:140
270859945632,409cyclictest6516-21runrttasks19:40:120
270859945631,410cyclictest6732-21expr21:06:100
270859945493,347cyclictest11-21ksoftirqd/021:19:310
270859945475,365cyclictest13-21rcuc/020:20:260
27085994524,435cyclictest0-21swapper20:04:360
270859945081,356cyclictest345450irq/10-yenta23:22:050
270859944973,363cyclictest16475-21chrt22:48:540
270859944955,380cyclictest7267-21diskmemload21:10:470
270859944887,347cyclictest345450irq/10-yenta23:06:260
270859944768,365cyclictest11-21ksoftirqd/022:40:270
270859944355,374cyclictest12361-21munin-node19:55:300
270859944355,260cyclictest7267-21diskmemload23:51:050
270859944067,89cyclictest11-21ksoftirqd/023:02:560
270859944032,393cyclictest2778-21ntp_states19:30:170
27085994361,421cyclictest7267-21diskmemload00:37:120
270859943531,342cyclictest25960-21grep23:10:550
270859942330,322cyclictest28748-21ntp_states20:40:180
270859942258,364cyclictest0-21swapper20:46:160
270859942253,354cyclictest8709-21awk19:45:280
270859941854,349cyclictest24829-21sh20:30:000
270859941655,347cyclictest23282-21strings00:21:020
270859940252,335cyclictest25272-21ntpq20:30:260
270859939337,356cyclictest0-21swapper20:17:590
270859939237,355cyclictest0-21swapper20:37:430
270859939154,278cyclictest25989-21ssh00:27:020
270859938935,354cyclictest0-21swapper20:06:230
270859938423,361cyclictest0-21swapper21:00:150
270859937437,337cyclictest0-21swapper20:57:530
270859937331,316cyclictest32438-21sort20:50:190
270859937053,302cyclictest18349-21strings20:10:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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