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2026-05-10 - 08:48
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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 rack3slot6.osadl.org (updated Sun May 10, 2026 00:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
271921040,6chrt2716-21grep20:25:371
271921040,6chrt2716-21grep20:25:371
625729821,32sleep10-21swapper/119:08:571
6548998446,27cyclictest26-21ksoftirqd/119:15:131
62432837,27sleep00-21swapper/019:08:480
6548998043,27cyclictest26-21ksoftirqd/123:30:131
6548997941,24cyclictest26-21ksoftirqd/123:35:131
6543997856,12cyclictest0-21swapper/023:50:110
6543997615,54cyclictest0-21swapper/021:30:140
6548997541,24cyclictest26-21ksoftirqd/121:35:111
6548997437,24cyclictest26-21ksoftirqd/119:50:111
6548997339,23cyclictest26-21ksoftirqd/119:55:121
6543997344,16cyclictest0-21swapper/023:10:130
6543997314,52cyclictest0-21swapper/019:25:120
6543997244,17cyclictest31824-21apt-get23:20:150
654399717,54cyclictest15642-21apt-get22:35:110
6543997146,13cyclictest17703-21apt-get21:10:140
6548997039,10cyclictest26-21ksoftirqd/119:35:121
6548997038,11cyclictest26-21ksoftirqd/123:00:041
6543997047,11cyclictest15863-21apt-get19:35:120
6543997040,17cyclictest0-21swapper/020:50:240
6543997037,21cyclictest22678-21chrt22:55:130
6548996838,10cyclictest26-21ksoftirqd/122:35:121
6548996823,40cyclictest26-21ksoftirqd/120:56:281
6543996844,16cyclictest1325-21apt-get21:55:140
6543996841,12cyclictest1135-21apt-get23:25:130
6543996839,15cyclictest1599-21apt-get20:25:150
6543996839,15cyclictest1599-21apt-get20:25:150
6543996814,49cyclictest0-21swapper/000:00:130
6548996736,10cyclictest26-21ksoftirqd/121:25:101
6548996715,28cyclictest885-21apache200:00:041
654399675,21cyclictest8633-21apt-get20:45:130
6543996739,14cyclictest19413-21apt-get19:45:130
6543996738,16cyclictest3339-21apt-get20:30:130
6543996737,21cyclictest14171-21apt-get21:00:140
6543996737,16cyclictest4825-21apt-get22:05:130
6543996734,22cyclictest17675-21apt-get19:40:120
6543996644,12cyclictest26419-21apt-get21:35:100
6543996637,23cyclictest0-21swapper/021:15:150
6543996637,17cyclictest8884-21apt-get19:15:140
6543996634,25cyclictest0-21swapper/022:10:230
654899659,10cyclictest18049-21grep00:10:351
6543996543,12cyclictest24303-21apt-get23:00:040
6543996542,11cyclictest22890-21apt-get19:55:120
6543996542,10cyclictest2875-21apt-get23:30:130
6543996540,13cyclictest21150-21apt-get19:50:110
6543996537,14cyclictest5076-21apt-get20:35:130
6543996534,24cyclictest0-21swapper/019:30:120
6543996532,20cyclictest0-21swapper/022:15:120
6548996421,9cyclictest26-21ksoftirqd/120:05:401
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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