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2025-12-18 - 21:33
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack5slot2.osadl.org (updated Thu Dec 18, 2025 12:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
70182205188,13sleep30-21swapper/307:09:453
67182200184,11sleep10-21swapper/107:05:501
48192184166,13sleep00-21swapper/007:05:040
69252160143,12sleep20-21swapper/207:08:322
64652460,0sleep00-21swapper/012:30:110
239712110,0sleep323974-21cpuspeed10:55:113
72269991,4cyclictest18388-21munin-run11:50:000
72359970,7cyclictest0-21swapper/212:20:132
72319972,3cyclictest0-21swapper/111:40:131
72319962,3cyclictest0-21swapper/108:15:111
72319961,4cyclictest0-21swapper/108:40:121
72269962,4cyclictest15304-21munin-run07:25:000
72269960,3cyclictest25818-21munin-run12:05:000
72269960,3cyclictest13193-21perf08:25:000
72439955,0cyclictest19701-21kworker/3:212:16:213
72439955,0cyclictest19701-21kworker/3:210:13:143
72439955,0cyclictest19701-21kworker/3:209:06:023
72439955,0cyclictest19701-21kworker/3:208:54:513
72439955,0cyclictest19701-21kworker/3:208:21:143
72439950,1cyclictest10963-21munin-run11:35:003
72359952,2cyclictest0-21swapper/209:50:112
72359950,5cyclictest0-21swapper/212:00:122
72359950,4cyclictest1511-21apt-get10:10:022
72319951,3cyclictest0-21swapper/111:10:131
72319951,2cyclictest0-21swapper/110:10:121
72319951,2cyclictest0-21swapper/109:40:111
72319951,2cyclictest0-21swapper/109:35:121
72319951,2cyclictest0-21swapper/108:35:131
72319951,2cyclictest0-21swapper/107:30:121
72319951,2cyclictest0-21swapper/107:10:071
72319950,3cyclictest0-21swapper/109:55:111
72269950,5cyclictest0-21swapper/012:10:200
72269950,4cyclictest11072-21apt-get09:25:020
72439944,0cyclictest40-21ksoftirqd/311:15:003
72439944,0cyclictest0-21swapper/310:05:533
72439943,1cyclictest40-21ksoftirqd/309:55:013
72439943,1cyclictest24334-21sed08:45:133
72439943,1cyclictest17339-21needreboot11:45:173
72439943,1cyclictest0-21swapper/309:24:333
72439941,1cyclictest0-21swapper/312:20:133
72439940,4cyclictest11571-21cstates11:35:133
72439940,4cyclictest0-21swapper/312:30:103
72439940,4cyclictest0-21swapper/312:02:433
72439940,4cyclictest0-21swapper/311:55:113
72439940,4cyclictest0-21swapper/310:38:373
72439940,4cyclictest0-21swapper/310:30:133
72439940,4cyclictest0-21swapper/310:25:123
72439940,4cyclictest0-21swapper/309:45:123
72439940,4cyclictest0-21swapper/309:35:013
72439940,4cyclictest0-21swapper/309:30:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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