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2026-07-11 - 03:15
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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 Jul 11, 2026 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
67759973543623,3689cyclictest18306-21kworker/0:019:14:140
67759962573328,2919cyclictest18306-21kworker/0:019:15:390
49162746185,204sleep00-21swapper19:05:070
67759949732,451cyclictest9902-21ssh23:10:390
67759949631,452cyclictest13083-21ssh23:17:140
67759949030,281cyclictest19519-21diskmemload22:03:390
67759948834,440cyclictest23819-21ssh21:19:010
67759948734,438cyclictest19519-21diskmemload00:19:320
67759948733,439cyclictest19519-21diskmemload00:04:430
67759948641,384cyclictest273262chrt22:37:200
67759948634,439cyclictest1869-21ssh22:53:140
67759948632,440cyclictest28967-21ssh23:52:360
67759948532,439cyclictest10520-21ssh00:24:130
67759948431,439cyclictest16602-21ssh22:14:590
67759947436,438cyclictest0-21swapper21:58:070
67759947431,430cyclictest19519-21diskmemload22:30:550
67759947334,439cyclictest0-21swapper20:58:100
67759946834,373cyclictest4224-21lldpd20:35:280
67759946833,421cyclictest7604-21ssh23:05:390
67759946732,420cyclictest30777-21seq22:45:350
67759946717,435cyclictest4708-21awk00:10:410
67759946632,434cyclictest0-21swapper21:29:400
67759946134,427cyclictest0-21swapper19:36:360
67759945933,365cyclictest1798-21ntp_states00:05:190
67759944632,400cyclictest123362sleep000:27:080
67759943054,184cyclictest19519-21diskmemload23:25:430
67759942854,314cyclictest19519-19diskmemload00:36:140
67759942045,362cyclictest27816-21munin-node20:05:340
67759941855,349cyclictest19519-21diskmemload23:45:470
67759941854,350cyclictest14714-21ssh23:21:000
67759941531,371cyclictest24697-21ssh23:43:400
67759941453,348cyclictest19519-21diskmemload22:25:250
67759941433,367cyclictest14007-21ssh22:08:250
67759941255,174cyclictest29498-21ssh22:41:500
67759941050,346cyclictest19519-21diskmemload22:55:320
67759941035,361cyclictest18242-21apt-get22:17:200
67759940952,165cyclictest24344-21ssh21:20:230
67759940855,291cyclictest22327-21idleruntime19:50:150
67759940853,294cyclictest12269-21mailstats20:50:130
67759940818,376cyclictest21070-21chrt21:11:390
67759940633,359cyclictest30339-21ssh21:32:440
67759940624,368cyclictest29930-21kworker/u2:121:35:170
67759940553,340cyclictest19519-21diskmemload22:23:180
67759940533,358cyclictest2567-21ssh21:43:220
67759940434,357cyclictest7463-21ssh21:54:330
67759940433,358cyclictest5806-21kworker/u2:123:04:460
67759940131,370cyclictest0-21swapper21:04:190
67759940074,313cyclictest446-21apt-get20:17:140
67759940051,290cyclictest312172sleep020:13:280
67759940024,363cyclictest19519-21diskmemload00:32:360
67759939949,289cyclictest19519-21diskmemload23:56:420
67759939854,171cyclictest11553-21awk19:20:290
67759939753,284cyclictest19519-21diskmemload23:32:180
67759939751,286cyclictest19519-21diskmemload23:35:230
67759939653,284cyclictest5816-21sort20:30:530
67759939634,87cyclictest4305-21snmpd21:47:150
67759939435,346cyclictest27759-21kworker/0:220:22:580
67759939431,349cyclictest4924-21runrttasks20:43:000
67759939331,348cyclictest11392-21fschecks_time20:45:530
67759939114,364cyclictest4924-21runrttasks20:26:250
67759939035,341cyclictest14867-21tr19:30:150
67759938834,354cyclictest0-21swapper21:07:590
67759938826,302cyclictest26312-21grep20:00:250
67759937622,111cyclictest4924-21runrttasks19:55:060
67759937423,114cyclictest18718-21sed19:40:180
67759937320,293cyclictest14071-21proc_pri19:25:590
67759936952,303cyclictest21230-21processes19:45:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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