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2026-09-01 - 16:43
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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 10 highest latencies:
System rackcslot4.osadl.org (updated Tue Sep 01, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
357089723820,9sleep13570898-21ntp_kernel_pll_07:05:261
357193523470,7sleep03571918-21munin-run07:10:000
136599770,4rtkit-daemon1364-21rtkit-daemon08:17:341
136599760,4rtkit-daemon1364-21rtkit-daemon11:48:561
136599620,4rtkit-daemon1364-21rtkit-daemon08:45:150
36633022610,9sleep013-21ksoftirqd/010:08:000
37555972600,4sleep03755595-21tr12:20:000
35748652570,4sleep10-21swapper/107:15:151
357200599558,10cyclictest3762589-21http12:30:010
3572005995212,12cyclictest3762541-21apt-get12:30:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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