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2026-07-30 - 06:07
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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 20 highest latencies:
System rackeslot3.osadl.org (updated Wed Jul 29, 2026 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2351096997542,31cyclictest2519347-21kworker/1:211:35:151
2351096997342,29cyclictest2490444-21kworker/1:011:05:141
2351096997342,29cyclictest2447139-21kworker/1:110:20:161
2351096997245,25cyclictest1810835-1kworker/1:0H08:55:121
2351096997243,27cyclictest2393659-21kworker/1:209:15:121
2351096997239,31cyclictest1810835-1kworker/1:0H11:50:111
2351096996929,37cyclictest2514521-21kworker/1:111:30:151
2351096996837,30cyclictest2565198-21kworker/1:312:35:001
2351096996746,19cyclictest2412926-21kworker/1:009:50:151
2351096996746,19cyclictest2412926-21kworker/1:009:50:141
2351096996735,30cyclictest2533796-21kworker/1:211:55:151
2351096996551,11cyclictest2430756-21fschecks_count09:55:131
2351096996537,26cyclictest1810835-1kworker/1:0H07:40:161
2351096996536,28cyclictest2554175-21kworker/1:112:19:041
2351096996461,2cyclictest0-21swapper/108:00:471
2351096996434,28cyclictest2355188-21kworker/1:307:35:141
235109699640,2cyclictest0-21swapper/112:00:371
2351096996341,20cyclictest1810835-1kworker/1:0H07:50:001
2351096996338,24cyclictest2480115-21kworker/1:111:00:171
2351096996335,26cyclictest2349225-21kworker/1:007:15:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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