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2025-12-11 - 01:08
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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 Dec 10, 2025 12:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29985999016,59cyclictest0-21swapper/012:20:130
29985998918,56cyclictest0-21swapper/007:30:140
2979328934,43sleep10-21swapper/107:09:261
2959528918,27sleep00-21swapper/007:07:530
29985998816,57cyclictest0-21swapper/009:20:140
29985998814,61cyclictest0-21swapper/010:15:160
2998599876,65cyclictest10575-21apt-get07:45:160
29985998618,58cyclictest0-21swapper/009:30:120
29985998616,58cyclictest0-21swapper/008:35:150
29985998615,57cyclictest0-21swapper/009:05:130
29985998613,59cyclictest0-21swapper/008:15:160
29985998613,58cyclictest0-21swapper/010:25:140
2998599857,66cyclictest27820-21apt-get11:35:120
2998599857,62cyclictest16967-21apt-get09:35:150
2998599856,64cyclictest26353-21apt-get10:00:240
2998599856,64cyclictest26353-21apt-get10:00:230
2998599856,63cyclictest30174-21apt-get08:40:160
29985998515,55cyclictest0-21swapper/007:35:150
2998599846,62cyclictest8831-21apt-get07:40:160
29985998431,40cyclictest0-21swapper/011:25:150
29985998426,53cyclictest487-21gdbus08:50:010
29985998415,59cyclictest0-21swapper/012:15:140
29985998414,59cyclictest0-21swapper/010:45:160
29985998414,59cyclictest0-21swapper/008:10:130
29985998414,55cyclictest0-21swapper/007:25:150
2998599837,58cyclictest4496-21apt-get12:00:140
2998599836,62cyclictest26613-21apt-get08:30:140
29985998319,56cyclictest6520-21tail10:35:170
29985998315,57cyclictest0-21swapper/007:10:140
29985998315,55cyclictest0-21swapper/011:55:250
29985998314,59cyclictest0-21swapper/010:10:250
2998599826,65cyclictest24298-21apt-get09:55:150
29985998237,33cyclictest0-21swapper/011:20:120
29985998221,49cyclictest14-21ksoftirqd/011:40:130
29985998215,53cyclictest0-21swapper/012:30:150
29985998213,59cyclictest0-21swapper/009:25:120
29985998213,57cyclictest0-21swapper/011:00:130
29985998213,55cyclictest0-21swapper/009:15:140
29985998212,60cyclictest0-21swapper/011:50:150
29985998212,56cyclictest0-21swapper/007:15:150
29985998212,55cyclictest0-21swapper/010:20:130
2998599815,65cyclictest448-21dbus-daemon09:50:050
29985998113,56cyclictest0-21swapper/008:05:130
29985998112,58cyclictest0-21swapper/008:50:130
2998599807,56cyclictest8018-21apt-get12:10:130
2998599806,61cyclictest31376-21apt-get11:45:150
2998599806,58cyclictest28097-21apt-get10:05:160
29985998018,47cyclictest0-21swapper/010:55:120
29985998017,51cyclictest0-21swapper/010:30:120
29985998014,57cyclictest0-21swapper/008:25:230
29985998014,56cyclictest0-21swapper/007:55:130
29985998013,57cyclictest0-21swapper/009:00:140
2998599798,61cyclictest6230-21apt-get12:05:130
2998599797,56cyclictest8246-21apt-get09:10:130
2998599797,56cyclictest16740-21apt-get12:35:140
2998599796,59cyclictest13259-21apt-get12:25:130
2998599796,59cyclictest13259-21apt-get12:25:120
2998599796,58cyclictest12311-21apt-get07:50:140
2998599796,56cyclictest8298-21apt-get10:40:140
2998599787,54cyclictest18799-21apt-get11:10:120
2998599785,57cyclictest20521-21apt-get09:45:150
2998599785,57cyclictest1663-21apt-get07:20:170
29985997815,54cyclictest0-21swapper/008:20:130
29985997814,50cyclictest0-21swapper/010:50:150
29985997812,56cyclictest0-21swapper/011:15:250
29985997754,12cyclictest14-21ksoftirqd/008:00:150
2998599768,11cyclictest0-21swapper/011:30:220
2998599767,54cyclictest18780-21apt-get09:40:150
2998599767,54cyclictest17012-21apt-get11:05:130
29990997329,37cyclictest10360-21expr10:45:221
2998599737,50cyclictest2960-21apt-get08:55:150
29990997142,17cyclictest26-21ksoftirqd/109:35:131
29990996932,31cyclictest4074-21awk10:25:371
29990996830,16cyclictest32452-21aten2.4_r3power07:15:181
29990996713,41cyclictest151rcu_preempt11:35:281
29990996644,16cyclictest504-21snmpd10:56:371
29990996630,10cyclictest10497-21ntp_states12:15:331
29990996547,13cyclictest30186-21/usr/sbin/munin10:10:421
29990996536,23cyclictest553-21runrttasks07:39:131
29990996536,23cyclictest254-21systemd-journal07:54:591
29990996524,35cyclictest1032-21chrt10:19:421
29990996524,19cyclictest9725-21latency_hist12:15:011
29990996439,20cyclictest9907-21unixbench_multi07:40:391
29990996438,21cyclictest23219-21needreboot11:20:281
29990996437,22cyclictest6451-21/usr/sbin/munin09:05:321
29990996436,22cyclictest21084-21cat09:45:281
29990996337,21cyclictest26207-21apt-key10:00:021
29990996337,21cyclictest26207-21apt-key10:00:021
29990996337,20cyclictest16030-21unixbench-2d12:30:361
29990996337,19cyclictest8078-21diskmemload09:10:131
29990996336,21cyclictest461-21rs:main1
29990996336,21cyclictest31908-21/usr/sbin/munin08:45:201
29990996336,21cyclictest11998-21kernelversion12:20:241
29990996335,22cyclictest553-21runrttasks09:55:171
29990996334,24cyclictest553-21runrttasks07:10:291
29990996334,23cyclictest25585-21ntpq08:25:411
29990996334,22cyclictest14137-21grep09:25:271
29990996333,25cyclictest254-21systemd-journal08:35:001
29990996333,24cyclictest553-21runrttasks12:35:151
29990996333,24cyclictest19331-21apt-get08:10:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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