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2026-06-17 - 11:56
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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 Jun 17, 2026 00:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17098999135,47cyclictest2820-21apt-get21:30:130
17098998355,17cyclictest801-21gpm19:30:130
17098998247,26cyclictest11853-21apt-get20:25:130
17098998245,25cyclictest0-21swapper/021:00:110
17098998152,15cyclictest10457-21apt-get21:50:230
17098998146,27cyclictest0-21swapper/023:55:230
1709899807,62cyclictest29765-21apt-get22:45:150
17098998051,20cyclictest31504-21apt-get22:50:130
17098998051,14cyclictest19236-21apt-get22:15:170
17098998045,27cyclictest0-21swapper/023:20:130
17098998044,25cyclictest812-21apt-get22:55:140
17098998043,24cyclictest0-21swapper/023:35:120
17098997949,22cyclictest0-21swapper/020:05:140
17098997948,15cyclictest22736-21apt-get22:25:140
17098997946,25cyclictest0-21swapper/023:05:160
17098997851,15cyclictest28100-21diskmemload21:10:130
17098997848,15cyclictest2092-21apt-get00:30:130
17098997846,25cyclictest0-21swapper/022:00:130
17104997742,23cyclictest24732-21apt-get21:00:111
17098997750,17cyclictest13892-21apt-get20:30:220
17098997749,14cyclictest1078-21apt-get21:25:140
17098997745,26cyclictest0-21swapper/019:40:130
17098997745,25cyclictest0-21swapper/022:35:140
17098997744,25cyclictest0-21swapper/020:15:120
17098997744,24cyclictest0-21swapper/019:20:110
1688327734,34sleep10-21swapper/119:09:101
17104997646,14cyclictest6675-21apt-get21:40:241
17098997656,10cyclictest6611-21apt-get20:10:140
17098997648,14cyclictest17491-21apt-get22:10:110
17098997647,24cyclictest0-21swapper/019:10:140
17098997647,15cyclictest25761-21apt-get00:05:160
17098997646,24cyclictest0-21swapper/023:45:130
17098997645,17cyclictest26718-21apt-get19:35:240
17098997643,27cyclictest0-21swapper/023:25:120
17098997643,22cyclictest0-21swapper/022:30:120
17098997642,26cyclictest0-21swapper/019:45:150
17098997642,23cyclictest0-21swapper/023:40:120
17098997641,24cyclictest0-21swapper/021:15:150
1656327616,52sleep00-21swapper/019:06:140
17098997555,10cyclictest31766-21apt-get21:20:130
17098997550,19cyclictest457-21dbus-daemon23:20:010
17098997548,14cyclictest8417-21apt-get21:45:130
17098997547,14cyclictest1320-21apt-get19:55:120
17098997547,14cyclictest1320-21apt-get19:55:120
17098997546,24cyclictest0-21swapper/019:15:130
17098997546,15cyclictest17754-21apt-get20:40:240
17098997544,22cyclictest26474-21apt-get21:05:120
17098997541,21cyclictest0-21swapper/022:20:130
17098997538,26cyclictest29282-21apt-get00:15:120
17104997445,14cyclictest24677-21apt-get19:30:131
17104997441,19cyclictest316-21apt-get00:25:131
17098997453,9cyclictest4561-21apt-get21:35:130
17098997445,24cyclictest0-21swapper/019:50:120
17098997445,23cyclictest0-21swapper/020:00:130
17098997445,21cyclictest12197-21apt-get21:55:120
17098997429,38cyclictest16067-21if_err_enp2s020:35:230
17098997425,42cyclictest160362sleep022:05:230
17098997346,19cyclictest503-21snmpd23:30:120
17098997341,22cyclictest0-21swapper/000:35:130
17098997254,10cyclictest2580-21apt-get23:00:160
17098997252,10cyclictest24014-21apt-get00:00:120
17098997242,19cyclictest6675-21apt-get21:40:210
17098997240,25cyclictest0-21swapper/020:55:130
17098997222,14cyclictest31390-21diskstats00:20:220
17098997213,15cyclictest0-21swapper/000:25:120
17098997212,16cyclictest0-21swapper/000:10:110
17104997141,15cyclictest21196-21apt-get19:20:111
17104997140,15cyclictest4822-21apt-get20:05:141
17104997133,25cyclictest0-21swapper/120:25:131
17098997141,25cyclictest0-21swapper/019:25:150
17098997127,39cyclictest10910-21uname20:20:320
17104996939,15cyclictest24475-21apt-get22:30:141
17104996937,23cyclictest28026-21apt-get22:40:141
17104996936,25cyclictest0-21swapper/100:05:161
17104996934,26cyclictest0-21swapper/121:45:121
17104996920,44cyclictest4404-21awk21:35:011
17098996940,19cyclictest0-21swapper/022:40:130
17104996840,15cyclictest13958-21apt-get22:00:131
17104996838,16cyclictest8354-21apt-get20:15:121
17104996836,24cyclictest0-21swapper/121:50:231
17104996835,25cyclictest0-21swapper/100:30:131
17104996835,24cyclictest0-21swapper/122:15:171
17104996833,24cyclictest0-21swapper/122:55:141
17104996830,27cyclictest30006-21apt-get21:15:151
17098996845,14cyclictest20179-21apt-get23:50:120
17098996831,28cyclictest0-21swapper/020:50:140
17098996821,42cyclictest0-21swapper/023:11:040
17104996739,15cyclictest26216-21apt-get22:35:141
17104996738,16cyclictest28533-21apt-get19:40:131
17104996738,15cyclictest3082-21apt-get20:00:131
17104996738,14cyclictest15701-21apt-get22:05:161
17104996737,16cyclictest9612-21apt-get23:20:131
17104996736,25cyclictest0-21swapper/122:25:141
17104996735,25cyclictest0-21swapper/120:40:241
17104996735,16cyclictest3830-21apt-get00:35:131
17104996734,25cyclictest0-21swapper/119:35:241
17104996734,18cyclictest0-21swapper/121:05:121
17104996726,36cyclictest26-21ksoftirqd/121:29:351
17098996720,42cyclictest0-21swapper/020:45:260
17104996642,12cyclictest28266-21apt-get21:10:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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