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2026-03-22 - 03:18
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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 20 highest latencies:
System rackcslot4.osadl.org (updated Sun Mar 22, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13693932266184,29sleep10-21swapper/119:06:371
13693252257181,25sleep00-21swapper/019:05:540
155593921560,4sleep00-21swapper/000:20:210
14868872470,3sleep0161rcuc/022:43:070
179699430,4rtkit-daemon1390523-21apt-get20:00:140
179699390,4rtkit-daemon0-21swapper/119:56:531
14214912370,4sleep01421472-21munin-run21:15:000
14191032340,4sleep11419101-21ssh21:10:231
1369844993430,2cyclictest1454658-1kworker/0:2H22:30:290
136984999327,5cyclictest806-21in:imuxsock23:40:011
136984999320,20cyclictest1458788-21apt-key22:05:011
14121582310,5sleep10-21swapper/120:55:151
136984499319,7cyclictest1521150-21ntp_states23:30:220
179699300,5rtkit-daemon1417691-21diskmemload00:33:530
136984999302,5cyclictest1429351-40apt-check21:25:171
179699290,21rtkit-daemon0-21swapper/000:37:520
14397122290,17sleep00-21swapper/021:39:260
136984999299,6cyclictest1557681-21ssh00:23:151
136984999297,17cyclictest141rcu_preempt00:25:191
1369849992924,3cyclictest1459240-21ssh22:05:061
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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