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2026-05-21 - 03:08
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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 Thu May 21, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
83489980134336,3654cyclictest17741-21kworker/0:219:35:230
83489973843693,3631cyclictest17741-21kworker/0:219:14:150
83489968053650,3144cyclictest17741-21kworker/0:219:25:570
83489967933601,3140cyclictest17741-21kworker/0:219:33:300
83489967693640,3118cyclictest17741-21kworker/0:219:16:080
83489957703043,2723cyclictest17741-21kworker/0:219:20:140
8084267449,203sleep00-21swapper19:08:260
83489955636,459cyclictest21035-21diskmemload22:48:550
83489951286,248cyclictest4272-21snmpd21:43:150
83489948760,365cyclictest2939-21fschecks_count00:11:400
83489948031,434cyclictest28077-21ssh23:55:410
83489947835,429cyclictest345450irq/10-yenta00:37:010
83489946787,357cyclictest4253-21lldpd21:22:530
83489946723,383cyclictest4836-21runrttasks00:16:110
83489946522,382cyclictest4894-21runrttasks23:37:430
83489946420,429cyclictest22424-21sed19:45:270
83489946132,253cyclictest16236-21ssh23:27:300
8348994534,435cyclictest3070-21ssh22:57:040
83489944958,376cyclictest0-21swapper00:28:480
83489944934,400cyclictest7458-21runrttasks00:21:490
83489944658,373cyclictest17559-21ssh22:15:510
8348994416,421cyclictest13857-21df20:50:170
83489943852,372cyclictest0-21swapper19:51:280
8348994384,373cyclictest22050-21ssh22:26:090
8348994363,373cyclictest7975-21ssh21:54:240
83489943414,242cyclictest0-21swapper22:14:480
83489942957,359cyclictest9530-21ssh21:56:390
83489942956,359cyclictest1170-21ssh00:08:250
83489942753,359cyclictest0-21swapper21:27:310
83489942751,361cyclictest985-21ssh21:37:220
8348994261,249cyclictest20929-21ssh22:24:380
83489942452,358cyclictest0-21swapper21:47:270
8348994230,248cyclictest21035-21diskmemload23:17:500
83489942157,364cyclictest0-21swapper21:06:540
83489941960,299cyclictest1445-21ssh22:54:520
83489941955,305cyclictest0-21swapper23:42:130
83489941657,299cyclictest14436-21ssh22:09:240
83489941642,350cyclictest21035-21diskmemload23:13:200
83489941229,368cyclictest25070-21ssh23:48:390
83489941132,361cyclictest21035-21diskmemload00:30:100
83489941057,338cyclictest18430-21ssh23:32:450
83489940955,354cyclictest0-21swapper21:16:520
83489940735,357cyclictest27146-21ssh23:53:200
83489940558,347cyclictest0-21swapper20:04:470
83489940137,340cyclictest4894-21runrttasks19:44:430
83489940055,345cyclictest0-21swapper20:24:320
83489939737,360cyclictest0-21swapper20:16:280
83489939736,361cyclictest0-21swapper23:05:080
83489939551,282cyclictest30435-21awk00:00:490
83489939536,346cyclictest345450irq/10-yenta23:21:060
83489939131,347cyclictest345450irq/10-yenta21:31:330
83489939037,339cyclictest4894-21runrttasks19:59:290
83489939023,352cyclictest4192-21lldpd20:12:060
83489938934,342cyclictest4894-21runrttasks22:03:200
83489938932,357cyclictest0-21swapper20:06:140
83489938834,331cyclictest22894-21ssh21:13:310
83489938534,339cyclictest21035-21diskmemload22:34:110
83489938333,350cyclictest29347-21ssh22:43:320
83489938236,346cyclictest0-21swapper20:40:190
83489938032,288cyclictest18090-21switchtime21:00:360
83489937837,328cyclictest27418-21ssh22:39:470
83489937736,279cyclictest15685-21ls20:55:150
83489937633,343cyclictest4368-21ssh23:00:390
83489937631,288cyclictest8225-21mailstats20:35:120
83489936733,89cyclictest12133-21munin-node20:45:210
83489936333,89cyclictest4499-21mailstats20:25:110
83489934461,214cyclictest7783-21runrttasks20:32:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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