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2026-06-12 - 18:35
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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 the highest latencies:
System rack6slot5.osadl.org (updated Fri Jun 12, 2026 12:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1988599106775324,5330cyclictest29878-21kworker/0:212:35:090
198859998015045,4696cyclictest618-21kworker/0:011:49:320
198859990554737,4307cyclictest7897-21kworker/0:007:26:020
198859990494661,4374cyclictest29075-21kworker/0:111:26:490
198859989894462,4475cyclictest7897-21kworker/0:007:32:380
198859986304259,4356cyclictest618-21kworker/0:011:51:210
198859980674281,3771cyclictest618-21kworker/0:012:02:150
198859980404108,3917cyclictest19008-21kworker/0:011:12:030
198859977773836,3890cyclictest7897-21kworker/0:007:24:270
198859974703779,3631cyclictest7897-21kworker/0:007:14:180
198859974524019,3419cyclictest7596-21kworker/0:010:46:390
198859971743757,3365cyclictest7897-21kworker/0:007:18:530
198859967213448,3258cyclictest19008-21kworker/0:011:15:210
198859966893412,3225cyclictest618-21kworker/0:011:58:590
198859966533564,3007cyclictest22082-21kworker/0:212:22:330
198859965093405,3061cyclictest7596-21kworker/0:010:43:330
198859964333571,2811cyclictest19099-21kworker/0:012:11:470
198859962823382,2885cyclictest618-21kworker/0:011:37:380
198859962193377,2791cyclictest16168-21kworker/0:210:58:500
198859960953214,2821cyclictest27550-21kworker/0:112:33:070
198859946902538,2136cyclictest16168-21kworker/0:211:00:570
194082805185,203sleep00-21swapper07:06:410
198859949963,375cyclictest13-21rcuc/008:59:410
198859948850,264cyclictest13-21rcuc/009:00:180
198859948834,439cyclictest353-21diskmemload10:28:520
198859948633,439cyclictest18176-21ssh12:08:560
198859948632,440cyclictest353-21diskmemload11:31:520
198859948431,439cyclictest21992-21ssh09:58:090
198859946131,369cyclictest7485-31which08:00:350
198859943359,192cyclictest13-21rcuc/007:37:330
198859943034,373cyclictest11724-21grep08:10:580
198859942034,372cyclictest375-21ssh10:22:450
198859941734,367cyclictest29161-21ntp_states10:15:200
198859941534,319cyclictest3331-21awk10:30:210
198859941235,362cyclictest23216-21cron12:20:010
198859941234,362cyclictest28648-21runrttasks11:23:130
198859941142,203cyclictest0-21swapper09:40:130
198859941051,344cyclictest353-21diskmemload12:25:250
198859941034,315cyclictest13793-21missed_timers10:51:210
198859940935,313cyclictest3927-21rm09:16:290
198859940633,312cyclictest10155-21cut09:30:550
198859940441,350cyclictest0-21swapper08:48:530
198859940334,309cyclictest4272-21snmpd09:51:290
198859940227,360cyclictest6521-21ssh09:22:210
198859940135,352cyclictest353-21diskmemload10:00:120
198859940131,310cyclictest134822chrt09:39:250
198859940034,296cyclictest27391-21ssh10:10:380
198859939945,339cyclictest353-21diskmemload10:06:080
198859939934,350cyclictest32130-21grep07:40:290
198859939932,352cyclictest4192-21lldpd09:46:370
198859939835,189cyclictest5575-21munin-node07:55:320
198859939550,163cyclictest353-21diskmemload11:05:550
198859939531,301cyclictest2638-21ls09:15:040
198859939353,280cyclictest4894-21runrttasks08:41:060
198859939314,317cyclictest26646-21perl08:51:020
198859938934,294cyclictest31263-21awk09:05:210
198859938734,172cyclictest4894-21runrttasks08:06:370
198859938731,296cyclictest7448-21seq10:39:330
198859938632,340cyclictest4894-21runrttasks09:26:110
198859938531,340cyclictest4272-21snmpd08:19:360
198859938526,359cyclictest0-21swapper08:27:590
198859938035,345cyclictest0-21swapper11:42:130
198859938033,287cyclictest1898-21needreboot07:45:410
198859937532,343cyclictest0-21swapper07:53:290
198859937414,299cyclictest14625-21cut08:20:200
198859935180,259cyclictest4253-21lldpd08:34:450
198859935035,255cyclictest21706-21cron08:40:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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