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2026-03-18 - 16:25
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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 100 highest latencies:
System rack3slot6.osadl.org (updated Wed Mar 18, 2026 12:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
200792900,6chrt0-21swapper/009:50:310
2589927720,48sleep00-21swapper/007:06:400
26399997648,16cyclictest26-21ksoftirqd/110:55:141
26399997647,16cyclictest26-21ksoftirqd/110:20:131
26399997548,18cyclictest26-21ksoftirqd/108:25:131
26399997548,16cyclictest26-21ksoftirqd/112:25:231
26399997547,16cyclictest26-21ksoftirqd/109:15:141
26399997547,16cyclictest26-21ksoftirqd/109:15:141
26399997447,17cyclictest26-21ksoftirqd/109:25:131
26399997445,18cyclictest26-21ksoftirqd/108:15:231
26395997448,17cyclictest2360-21apt-get12:05:250
26399997344,19cyclictest26-21ksoftirqd/112:05:231
26399997343,19cyclictest26-21ksoftirqd/109:40:141
2639999717,16cyclictest20314-21idleruntime-cro11:25:011
26399997141,17cyclictest0-21swapper/107:40:121
2639599717,55cyclictest2918-21apt-get10:35:140
2639599717,55cyclictest2918-21apt-get10:35:140
2639599717,55cyclictest28736-21apt-get07:15:150
26395997126,13cyclictest14-21ksoftirqd/007:36:320
26399997044,17cyclictest26-21ksoftirqd/108:50:131
26399997043,16cyclictest26-21ksoftirqd/108:05:131
26399997042,18cyclictest0-21swapper/110:35:141
26399997042,18cyclictest0-21swapper/110:35:131
26399997042,17cyclictest0-21swapper/112:35:131
26399997042,16cyclictest26-21ksoftirqd/111:55:121
26399997040,18cyclictest0-21swapper/109:55:141
26399997040,17cyclictest0-21swapper/111:50:121
26399997040,17cyclictest0-21swapper/108:30:231
26395997011,13cyclictest0-21swapper/010:45:110
26399996942,16cyclictest0-21swapper/107:10:141
26399996939,17cyclictest0-21swapper/111:30:141
26399996938,17cyclictest0-21swapper/109:35:151
26395996918,17cyclictest5111-21diskmemload09:10:010
2624826931,28sleep10-21swapper/107:09:551
184372690,7chrt18440-21switchtime09:45:351
26399996843,19cyclictest500-21snmpd09:20:131
26399996840,18cyclictest0-21swapper/109:50:141
26399996840,16cyclictest0-21swapper/109:30:141
26399996839,17cyclictest0-21swapper/112:00:151
26399996839,17cyclictest0-21swapper/107:35:121
2639599686,55cyclictest30499-21apt-get07:20:170
26395996843,10cyclictest5536-21/usr/sbin/munin07:40:330
26399996739,18cyclictest0-21swapper/109:00:141
26399996739,16cyclictest0-21swapper/107:50:121
26399996737,17cyclictest0-21swapper/107:45:121
26395996740,10cyclictest14-21ksoftirqd/012:20:170
26395996738,15cyclictest14-21ksoftirqd/012:00:000
26395996722,13cyclictest14-21ksoftirqd/009:00:010
26395996721,21cyclictest14-21ksoftirqd/008:39:000
26399996636,18cyclictest0-21swapper/107:15:151
26395996638,12cyclictest14-21ksoftirqd/008:30:060
26395996614,18cyclictest14-21ksoftirqd/008:30:010
26399996537,17cyclictest0-21swapper/110:15:181
26399996536,17cyclictest0-21swapper/111:15:131
26399996536,17cyclictest0-21swapper/111:05:111
26395996538,14cyclictest14-21ksoftirqd/012:05:000
26395996538,10cyclictest14-21ksoftirqd/009:37:010
26395996528,12cyclictest14-21ksoftirqd/009:25:010
26395996518,33cyclictest14-21ksoftirqd/011:30:170
26395996515,18cyclictest22044-21apt11:30:000
26399996443,12cyclictest52822sleep109:10:131
26399996438,15cyclictest0-21swapper/110:25:101
26399996435,17cyclictest0-21swapper/108:35:131
26399996434,18cyclictest26-21ksoftirqd/112:20:121
26399996433,18cyclictest0-21swapper/108:20:121
26395996439,17cyclictest27191-21apt-get08:40:130
26395996438,12cyclictest14-21ksoftirqd/012:35:000
26395996422,36cyclictest1870-21aten2.4-expect09:00:150
26399996336,19cyclictest0-21swapper/112:10:111
2639599636,16cyclictest16053-21apt-get08:10:150
2639599636,16cyclictest16053-21apt-get08:10:140
26395996332,12cyclictest14-21ksoftirqd/012:25:040
26395996323,12cyclictest14-21ksoftirqd/008:15:050
26399996234,16cyclictest0-21swapper/111:00:121
26399996234,15cyclictest0-21swapper/111:45:131
26395996237,17cyclictest32234-21apt-get07:25:120
2639599623,38cyclictest17703-21ntp_states11:15:300
26395996220,20cyclictest14-21ksoftirqd/012:40:010
26395996220,19cyclictest14-21ksoftirqd/011:23:370
26395996217,20cyclictest14-21ksoftirqd/010:30:150
26395996217,12cyclictest14-21ksoftirqd/010:55:000
26395996214,14cyclictest151rcu_preempt11:39:010
26395996212,39cyclictest14-21ksoftirqd/011:44:570
26399996132,18cyclictest0-21swapper/111:40:111
26399996125,25cyclictest30493-21cron08:50:001
26395996135,12cyclictest14-21ksoftirqd/007:50:010
26395996120,19cyclictest14-21ksoftirqd/011:49:290
26395996112,33cyclictest151rcu_preempt08:05:170
26395996110,17cyclictest14-21ksoftirqd/007:30:050
26399996041,10cyclictest26-21ksoftirqd/110:14:591
26399996031,18cyclictest0-21swapper/107:55:131
26399996029,18cyclictest0-21swapper/112:15:141
26395996036,12cyclictest14-21ksoftirqd/008:54:590
26395996029,27cyclictest14-21ksoftirqd/009:43:090
26395996029,13cyclictest14-21ksoftirqd/010:10:060
26395996026,30cyclictest14-21ksoftirqd/011:54:090
26395996024,18cyclictest14-21ksoftirqd/008:48:460
26395996023,19cyclictest14-21ksoftirqd/012:15:220
26395996022,19cyclictest14-21ksoftirqd/011:04:190
26395996020,21cyclictest14-21ksoftirqd/007:10:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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