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2026-01-07 - 04:52
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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 Jan 07, 2026 00:45:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1961210517,40sleep00-21swapper/019:09:490
151729736,48sleep10-21swapper/119:05:341
66772920,6sleep16670-21munin-run22:25:011
2121998943,11cyclictest14-21ksoftirqd/023:30:130
2129997941,24cyclictest26-21ksoftirqd/121:00:131
2121997553,14cyclictest0-21swapper/019:15:110
2121997542,23cyclictest19421-21apt-get23:00:130
2121997530,40cyclictest2115-21cyclictest21:25:110
2121997439,28cyclictest0-21swapper/000:00:110
2121997438,26cyclictest0-21swapper/020:50:110
2121997438,23cyclictest0-21swapper/019:10:130
2121997422,46cyclictest250-21systemd-journal23:57:000
2121997422,46cyclictest250-21systemd-journal23:56:590
2121997315,51cyclictest0-21swapper/022:45:130
2121997315,16cyclictest0-21swapper/019:30:120
2121997237,27cyclictest0-21swapper/022:35:120
2121997237,22cyclictest0-21swapper/022:25:150
2121997237,22cyclictest0-21swapper/022:25:150
2121997143,14cyclictest0-21swapper/021:30:130
2121997138,18cyclictest0-21swapper/019:45:110
2121997138,17cyclictest14-21ksoftirqd/020:43:060
2121997117,15cyclictest0-21swapper/000:20:230
2121997043,15cyclictest3104-21apt-get23:45:130
2121997043,15cyclictest3104-21apt-get23:45:120
2121997037,26cyclictest0-21swapper/022:30:230
2121997036,23cyclictest0-21swapper/020:45:130
2121997035,23cyclictest0-21swapper/023:50:100
2121996940,15cyclictest0-21swapper/019:35:130
2121996940,14cyclictest24065-21apt-get20:10:130
2121996939,15cyclictest22274-21apt-get20:05:150
2121996937,26cyclictest0-21swapper/023:20:120
2121996935,25cyclictest0-21swapper/023:15:130
2121996935,21cyclictest0-21swapper/000:10:150
2121996921,41cyclictest31321-21runrttasks20:30:180
2121996838,24cyclictest0-21swapper/021:00:150
2121996836,27cyclictest0-21swapper/020:00:140
2121996836,25cyclictest0-21swapper/022:10:140
2129996735,18cyclictest26-21ksoftirqd/122:26:441
2129996735,18cyclictest26-21ksoftirqd/122:26:431
2121996718,44cyclictest29472-21taskset23:27:030
2129996635,17cyclictest26-21ksoftirqd/121:52:591
2121996648,10cyclictest14-21ksoftirqd/019:40:140
2121996647,10cyclictest32232-21apt-get22:05:120
2121996640,15cyclictest14-21ksoftirqd/023:40:150
2121996639,21cyclictest16187-21apt-get21:20:140
2121996637,24cyclictest0-21swapper/000:35:240
2121996636,24cyclictest0-21swapper/021:45:110
2121996635,23cyclictest0-21swapper/019:20:140
2121996635,23cyclictest0-21swapper/019:20:130
2129996434,17cyclictest26-21ksoftirqd/119:48:311
2129996432,18cyclictest26-21ksoftirqd/121:25:411
2121996422,37cyclictest13650-21seq00:15:130
2129996333,8cyclictest26-21ksoftirqd/100:00:401
2121996340,14cyclictest2115-21cyclictest20:25:150
2121996337,21cyclictest0-21swapper/023:35:240
2121996335,23cyclictest0-21swapper/020:35:130
2121996330,23cyclictest0-21swapper/022:00:150
2121996325,32cyclictest21517-21/usr/sbin/munin23:05:210
2121996321,35cyclictest23864-21/usr/sbin/munin23:10:350
2121996321,35cyclictest23864-21/usr/sbin/munin23:10:340
2121996321,17cyclictest23023-21sendmail21:40:000
2129996233,8cyclictest26-21ksoftirqd/121:24:131
2129996231,17cyclictest26-21ksoftirqd/120:44:051
2121996239,12cyclictest0-21swapper/021:15:130
2121996236,19cyclictest0-21swapper/022:15:130
2121996236,13cyclictest0-21swapper/020:20:140
2121996231,21cyclictest0-21swapper/022:40:140
2121996229,23cyclictest18772-21apt-get19:55:210
2121996226,31cyclictest17670-21/usr/sbin/munin19:50:350
2121996215,41cyclictest0-21swapper/021:55:070
2129996136,18cyclictest26-21ksoftirqd/119:30:341
2121996117,16cyclictest16354-21cat22:50:230
212199604,20cyclictest26974-21/usr/sbin/munin21:50:190
2121996036,15cyclictest0-21swapper/022:55:140
2121996034,15cyclictest0-21swapper/000:25:130
2121996031,16cyclictest0-21swapper/020:15:120
2121996023,9cyclictest11612-21ntp_states21:05:290
2121996021,33cyclictest8103-21/usr/sbin/munin20:55:290
2121996014,17cyclictest0-21swapper/019:25:160
2129995936,17cyclictest26-21ksoftirqd/123:29:561
2129995922,31cyclictest26-21ksoftirqd/100:00:031
2129995922,31cyclictest26-21ksoftirqd/100:00:031
2121995935,15cyclictest12681-21apt-get21:10:130
2121995935,15cyclictest12681-21apt-get21:10:130
2121995934,14cyclictest0-21swapper/022:20:130
2121995924,9cyclictest23214-21apt21:40:110
2121995922,23cyclictest0-21swapper/000:30:130
2129995835,17cyclictest26-21ksoftirqd/120:03:241
2129995815,19cyclictest448-21dbus-daemon20:35:001
2129995725,23cyclictest2201-21apt-get19:10:141
2129995722,24cyclictest5648-21apt-get20:50:121
2129995719,24cyclictest0-21swapper/123:00:131
2129995718,18cyclictest0-21swapper/120:15:291
2121995728,18cyclictest10117-21apt-get00:05:160
2129995627,16cyclictest26-21ksoftirqd/119:27:031
2129995533,17cyclictest448-21dbus-daemon20:00:001
2129995533,17cyclictest26-21ksoftirqd/122:42:091
2129995533,16cyclictest26-21ksoftirqd/123:11:311
2129995533,16cyclictest26-21ksoftirqd/123:11:311
2129995521,23cyclictest3909-21apt-get20:45:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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