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2026-06-14 - 10:48
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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
Characteristics of the highest latencies:
System rack6slot5.osadl.org (updated Sun Jun 14, 2026 00:43:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
164319987564643,4102cyclictest13092-21kworker/0:219:25:590
164319986444592,4047cyclictest13092-21kworker/0:219:34:160
164319980894281,3785cyclictest26801-21kworker/0:200:37:290
164319978714256,3573cyclictest13092-21kworker/0:219:24:230
164319975633838,3710cyclictest19543-21kworker/0:023:16:170
164319975264110,3401cyclictest13092-21kworker/0:221:11:470
164319972983872,3375cyclictest12725-21kworker/0:000:10:530
164319972673880,3372cyclictest9645-21kworker/0:200:00:270
164319971373609,3485cyclictest13092-21kworker/0:221:09:550
164319970603549,3469cyclictest19543-21kworker/0:023:14:120
164319969573811,3130cyclictest12725-21kworker/0:000:22:430
164319968913641,3235cyclictest19543-21kworker/0:023:29:230
164319967623685,2955cyclictest13092-21kworker/0:219:44:470
164319966843661,2972cyclictest13092-21kworker/0:219:18:520
164319965063406,3085cyclictest13092-21kworker/0:219:48:310
164319965003625,2871cyclictest13092-21kworker/0:219:12:410
164319963453482,2848cyclictest9645-21kworker/0:223:57:270
164319962863296,2967cyclictest23216-21kworker/0:222:54:510
164319961983407,2731cyclictest26801-21kworker/0:200:34:130
164319961693244,2909cyclictest19543-21kworker/0:023:46:000
164319961663357,2794cyclictest19543-21kworker/0:023:44:010
164319924442389,42cyclictest19543-21kworker/0:023:31:200
153692786185,176sleep00-21swapper19:05:190
164319948330,439cyclictest8216-21ssh23:54:540
164319946834,374cyclictest28625-21latency_hist22:20:030
164319946534,371cyclictest12-21rcu_preempt20:05:180
164319946132,429cyclictest29275-21diskmemload22:04:280
164319945834,359cyclictest14411-21ssh00:06:080
164319945432,408cyclictest4272-21snmpd21:40:560
164319942137,369cyclictest16448-21ssh23:03:030
164319941742,360cyclictest17150-21kworker/u2:121:54:270
164319940934,361cyclictest18774-21ssh23:08:330
164319940914,87cyclictest5176-21cat20:05:020
164319940633,358cyclictest3712-21ssh22:35:460
164319940632,359cyclictest24058-21ssh22:09:320
164319940619,373cyclictest8420-21munin-node22:45:510
164319940614,88cyclictest2716-21ssh22:34:200
164319940517,367cyclictest31757-21nfs_client22:25:480
164319940134,306cyclictest20006-21latency_hist20:45:010
164319940132,353cyclictest17243-21munin-node20:35:440
164319939732,350cyclictest6090-21chrt21:28:530
164319939642,339cyclictest2340-21python19:55:490
164319939631,351cyclictest632-21ssh23:38:380
164319939535,346cyclictest338750irq/10-eth021:45:500
164319939519,87cyclictest18979-21sh21:56:360
164319939339,340cyclictest28433-21kworker/u2:022:56:350
164319939339,340cyclictest23796-21latency_hist20:55:030
164319939322,358cyclictest29275-21diskmemload21:23:360
164319939132,163cyclictest25666-21grep22:11:280
164319939059,270cyclictest24626-21sed20:55:420
164319938734,339cyclictest29275-21diskmemload00:18:220
164319938634,338cyclictest29275-21diskmemload22:40:550
164319938251,91cyclictest27444-21perl19:35:390
164319938231,337cyclictest27038-21chrt21:01:430
164319938031,289cyclictest24685-21seq00:26:440
164319938031,288cyclictest15569-19udevd20:30:520
164319938031,279cyclictest9772-21ssh21:36:160
164319937731,346cyclictest0-21swapper21:19:200
164319937650,88cyclictest30870-21latency_hist22:25:050
164319937334,278cyclictest29275-21diskmemload23:23:250
164319936533,89cyclictest10360-21runrttasks20:17:070
164319936332,89cyclictest13821-21proc_pri20:25:580
164319936231,271cyclictest7278-21ssh21:30:540
164319935729,268cyclictest20561-21awk20:45:250
164319935433,321cyclictest0-21swapper19:50:520
164319935032,259cyclictest7108-21munin-node20:10:440
164319934931,258cyclictest10859-21mailstats20:20:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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