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2026-03-14 - 16:54
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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 Sat Mar 14, 2026 12:45:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
314309998635254,4598cyclictest11406-21kworker/0:208:14:110
314309996955169,4515cyclictest11406-21kworker/0:207:40:510
314309993955035,4357cyclictest11406-21kworker/0:207:12:510
314309993044794,4506cyclictest30570-21kworker/0:109:03:090
314309989544482,4429cyclictest11406-21kworker/0:207:27:370
314309987994533,4254cyclictest11406-21kworker/0:207:15:580
314309987244500,4213cyclictest11406-21kworker/0:207:24:020
314309982014099,4051cyclictest30570-21kworker/0:108:41:350
314309979843982,3951cyclictest30570-21kworker/0:108:51:300
314309979514354,3537cyclictest30570-21kworker/0:108:31:320
314309977014227,3413cyclictest11406-21kworker/0:207:47:210
314309976824156,3511cyclictest15998-21kworker/0:109:30:090
314309976334134,3484cyclictest9342-21kworker/0:011:30:330
314309975563770,3735cyclictest11406-21kworker/0:207:33:080
314309973543885,3454cyclictest9712-21kworker/0:212:37:490
314309973153940,3315cyclictest11406-21kworker/0:207:39:160
314309972463943,3288cyclictest21333-21kworker/0:210:44:290
314309970873880,3196cyclictest25907-21kworker/0:108:23:370
314309970283810,3175cyclictest11406-21kworker/0:208:03:230
314309969423589,3338cyclictest17916-21kworker/0:011:55:470
314309967773477,3257cyclictest4407-21kworker/0:010:05:070
314309967133547,3114cyclictest15998-21kworker/0:109:26:550
314309966083587,2969cyclictest12975-21kworker/0:209:12:140
314309965133636,2817cyclictest26036-21kworker/0:009:44:540
314309964723255,3203cyclictest4210-21kworker/0:112:34:520
314309964503506,2893cyclictest11687-21kworker/0:110:22:340
314309964423343,3084cyclictest26767-21kworker/0:112:16:300
314309964043492,2861cyclictest17916-21kworker/0:011:53:480
314309961433177,2951cyclictest26767-21kworker/0:112:14:350
314309960313322,2657cyclictest11406-21kworker/0:207:55:130
314309959883090,2855cyclictest26996-21kworker/0:211:02:130
314309955662772,2743cyclictest9342-21kworker/0:011:27:510
314309923642317,34cyclictest26036-21kworker/0:009:46:530
309502811184,177sleep00-21swapper07:06:380
314309951397,401cyclictest11-21ksoftirqd/009:52:470
314309950955,439cyclictest11927-21ssh10:19:210
314309950755,438cyclictest9653-21ssh10:13:340
314309950755,438cyclictest2086-21ssh11:08:070
314309950755,438cyclictest19919-21ssh10:36:040
314309949853,87cyclictest17571-21df11:41:470
314309949154,252cyclictest4216-21nscd09:21:490
314309948953,259cyclictest1796-21munin-node09:56:140
314309948552,192cyclictest3887-21timerandwakeup08:45:510
314309946453,342cyclictest26982sleep011:10:220
314309945067,369cyclictest11-21ksoftirqd/011:16:570
314309944854,370cyclictest12200-21diskmemload12:22:350
31430994421,426cyclictest12200-21diskmemload12:05:170
314309943765,179cyclictest5476-21ssh12:28:110
314309943464,357cyclictest16655-21ssh09:18:350
314309943169,302cyclictest11-21ksoftirqd/008:35:350
314309943054,181cyclictest10733-21grep09:05:240
31430994301,369cyclictest0-21swapper07:51:220
314309942853,191cyclictest16918-21ssh10:30:130
314309942455,88cyclictest3134-21kworker/u2:310:04:210
314309942352,88cyclictest6573-21nscd10:50:220
314309941652,188cyclictest19538-21perl11:46:310
314309941326,373cyclictest4192-21lldpd08:55:500
314309941237,361cyclictest16072-21cron11:40:010
314309941055,340cyclictest25731-21ssh09:37:290
314309940855,339cyclictest25370-21ssh10:47:360
314309940854,339cyclictest29640-21ssh10:57:300
314309940747,301cyclictest13-21rcuc/008:25:530
314309939345,333cyclictest12-21rcu_preempt08:15:200
314309939254,278cyclictest16394-21ssh10:27:560
314309938435,349cyclictest0-21swapper11:23:130
314309938053,268cyclictest27008-21ssh12:03:270
314309935088,203cyclictest12-21rcu_preempt08:08:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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