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2026-09-16 - 06:35
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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 376 highest latencies:
System rack6slot5.osadl.org (updated Wed Sep 16, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
202259991984701,4487cyclictest3883-21kworker/0:019:16:050
202259990654639,4422cyclictest30085-21kworker/0:219:38:290
202259966263613,3003cyclictest3883-21kworker/0:019:26:200
202259963903569,2771cyclictest3883-21kworker/0:019:14:130
202259961913301,2886cyclictest3883-21kworker/0:019:20:210
199822813185,203sleep00-21swapper19:08:370
202259951431,298cyclictest8490-21munin-node23:51:080
202259950252,437cyclictest27421-21cron20:55:010
202259948935,440cyclictest32689-21ssh23:33:400
202259948834,441cyclictest6707-21ssh22:35:330
202259948834,440cyclictest534-21diskmemload23:02:270
202259948734,440cyclictest4924-21runrttasks22:10:520
202259948734,439cyclictest7058-21ssh23:48:370
202259948734,439cyclictest534-21diskmemload22:51:370
202259948734,439cyclictest534-21diskmemload00:24:550
202259948734,439cyclictest26861-21ssh22:07:240
202259948734,439cyclictest15940-21ssh21:43:240
202259948733,440cyclictest534-21diskmemload23:59:170
202259948733,440cyclictest534-21diskmemload23:21:480
202259948733,440cyclictest534-21diskmemload21:17:340
202259948733,440cyclictest17263-21ssh21:46:020
202259948634,439cyclictest534-21diskmemload21:39:460
202259948634,439cyclictest534-21diskmemload21:28:240
202259948634,439cyclictest534-21diskmemload00:38:000
202259948634,439cyclictest24536-21ssh00:27:000
202259948634,438cyclictest534-21diskmemload21:57:490
202259948634,438cyclictest534-21diskmemload21:54:100
202259948633,440cyclictest31386-21ssh22:17:500
202259948633,440cyclictest12440-21ssh00:00:400
202259948633,439cyclictest7270-21ssh21:24:350
202259948633,439cyclictest534-21diskmemload21:32:410
202259948633,439cyclictest23467-21runrttasks23:12:070
202259948534,438cyclictest534-21diskmemload23:35:540
202259948533,439cyclictest534-21diskmemload22:47:590
202259948533,439cyclictest16416-21munin-node00:10:130
202259948532,439cyclictest1174-21ssh22:22:470
202259948437,447cyclictest0-21swapper20:57:080
202259948433,438cyclictest534-21diskmemload22:32:090
202259945533,408cyclictest24648-21ssh22:02:260
202259943361,359cyclictest0-21swapper23:09:530
202259941631,316cyclictest24251-21ssh23:15:190
202259941543,359cyclictest0-21swapper19:51:070
202259941236,362cyclictest534-21diskmemload23:29:350
202259941136,361cyclictest2981-21munin-node23:40:170
202259941032,318cyclictest32697-21switchtime19:40:340
202259940653,339cyclictest534-21diskmemload22:43:120
202259940632,374cyclictest0-21swapper20:28:090
202259940547,300cyclictest3725-21ssh22:28:590
202259940454,335cyclictest24214-21awk20:45:270
202259940443,302cyclictest0-21swapper21:09:340
202259940342,302cyclictest0-21swapper20:11:390
202259940232,356cyclictest27332-21ssh00:34:460
202259940232,308cyclictest29251-21python19:30:480
202259939940,354cyclictest351950irq/10-yenta19:45:180
202259939851,288cyclictest534-21diskmemload00:06:010
202259939835,303cyclictest16129-21ssh22:56:010
202259939752,284cyclictest18610-21runrttasks00:15:110
202259939734,350cyclictest12-21rcu_preempt19:55:560
202259939732,350cyclictest30494-21perl21:01:010
202259939655,281cyclictest14089-21apt-get20:17:090
202259939553,282cyclictest1371-21ssh21:10:490
202259939233,300cyclictest22000-21munin-node20:40:460
202259939133,296cyclictest7670-21df_abs20:00:300
202259938732,341cyclictest9527-21df_abs20:05:310
202259937631,170cyclictest21905-21sendmail-msp20:40:030
202259937132,165cyclictest19212-21python20:30:510
202259935555,286cyclictest15632-21fschecks_time20:20:570
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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