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2025-11-15 - 02:20
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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 Sat Nov 15, 2025 00:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
59149912219,94cyclictest26-21ksoftirqd/122:15:151
59149911415,22cyclictest26-21ksoftirqd/100:25:171
59149911273,28cyclictest26-21ksoftirqd/100:05:151
59149911272,28cyclictest26-21ksoftirqd/122:00:131
59069910474,18cyclictest14-21ksoftirqd/022:45:140
59149910352,33cyclictest26-21ksoftirqd/100:30:161
59149910257,32cyclictest26-21ksoftirqd/122:55:131
59149910247,36cyclictest26-21ksoftirqd/120:05:161
2860121020,6chrt28604-21grep20:10:350
59149910154,31cyclictest26-21ksoftirqd/122:05:251
59149910013,67cyclictest0-21swapper/123:00:131
5914999949,31cyclictest26-21ksoftirqd/121:40:141
5914999914,64cyclictest0-21swapper/100:15:131
47592990,6chrt4760-21sshd23:35:430
48552985,83sleep04878-21sh19:05:260
5914999714,65cyclictest0-21swapper/120:45:161
5914999713,64cyclictest0-21swapper/122:10:131
5914999710,68cyclictest0-21swapper/123:50:121
5914999516,57cyclictest0-21swapper/100:10:141
5914999514,64cyclictest0-21swapper/119:35:131
5914999514,62cyclictest0-21swapper/121:25:141
5914999514,60cyclictest0-21swapper/119:10:131
5914999513,66cyclictest0-21swapper/121:05:171
5914999510,27cyclictest0-21swapper/122:50:131
5914999426,53cyclictest0-21swapper/119:45:171
5914999413,62cyclictest0-21swapper/123:55:121
5914999413,59cyclictest0-21swapper/121:20:181
5914999411,61cyclictest0-21swapper/119:30:131
5914999410,26cyclictest0-21swapper/119:40:141
5914999211,59cyclictest0-21swapper/121:00:161
5914999114,56cyclictest0-21swapper/123:40:171
5914999110,60cyclictest0-21swapper/121:15:141
590699903,79cyclictest13164-21runrttasks00:00:310
591499899,62cyclictest0-21swapper/122:30:161
591499899,62cyclictest0-21swapper/122:30:151
591499887,56cyclictest16284-21diskmemload21:10:141
5914998812,56cyclictest0-21swapper/119:55:141
5914998812,56cyclictest0-21swapper/119:55:131
5914998811,57cyclictest0-21swapper/123:35:161
5906998813,60cyclictest0-21swapper/020:05:190
591499877,56cyclictest20512-21chrt19:50:131
5906998714,61cyclictest0-21swapper/000:35:130
5906998710,63cyclictest28851-21apt-get21:45:130
5914998612,55cyclictest0-21swapper/120:25:131
590699869,64cyclictest0-21swapper/020:00:160
590699868,24cyclictest18193-21apt-get21:15:150
5906998616,60cyclictest0-21swapper/022:25:120
5906998614,61cyclictest0-21swapper/021:25:160
5906998612,63cyclictest0-21swapper/022:55:170
591499859,55cyclictest0-21swapper/119:25:121
5914998510,25cyclictest0-21swapper/122:40:171
5906998515,58cyclictest0-21swapper/019:40:130
5906998513,60cyclictest0-21swapper/021:55:120
5906998512,62cyclictest0-21swapper/021:50:130
5906998512,62cyclictest0-21swapper/020:40:120
5906998413,60cyclictest0-21swapper/020:15:130
5914998311,53cyclictest0-21swapper/100:00:141
5906998326,50cyclictest448-21dbus-daemon20:39:000
5906998311,64cyclictest0-21swapper/023:50:130
591499826,52cyclictest553-21runrttasks22:25:141
5914998229,32cyclictest26-21ksoftirqd/121:55:131
590699829,24cyclictest11738-21apt-get19:25:110
590699827,20cyclictest16805-21apt-get22:40:160
590699818,23cyclictest2091-21apt-get20:30:140
590699808,60cyclictest10007-21taskset19:20:150
591499796,52cyclictest0-21swapper/120:30:141
590699797,19cyclictest13482-21apt-get19:30:150
590699797,16cyclictest23776-21apt-get23:00:140
5906997928,45cyclictest254-21systemd-journal23:35:010
5906997913,57cyclictest0-21swapper/023:55:150
590699788,15cyclictest16455-21apt-get21:10:150
590699787,17cyclictest18775-21apt-get19:45:200
590699783,19cyclictest9612-21cpu20:50:280
5906997828,44cyclictest7234-21sshd19:11:440
5906997820,19cyclictest448-21dbus-daemon21:45:000
590699777,20cyclictest151rcu_preempt21:30:160
590699775,68cyclictest0-21swapper/019:16:430
590699773,21cyclictest27144-21basename23:10:010
590699773,21cyclictest27144-21basename23:10:010
5906997724,17cyclictest31758-21sort23:20:360
5906997720,18cyclictest9371-21date22:20:020
5906997710,21cyclictest311-21apt-get20:25:130
590699767,22cyclictest15219-21apt-get19:35:130
590699767,19cyclictest7387-21apt-get20:45:180
590699766,21cyclictest22246-21apt-get19:55:130
590699766,21cyclictest22246-21apt-get19:55:130
5906997611,55cyclictest0-21swapper/000:05:170
591499756,49cyclictest0-21swapper/100:20:121
5914997511,45cyclictest0-21swapper/121:30:181
590699758,20cyclictest14665-21apt-get21:05:160
590699758,19cyclictest20279-21apt-get22:50:160
590699757,24cyclictest5971-21apt-get22:10:150
590699757,23cyclictest25473-21apt-get21:35:140
590699757,20cyclictest4174-21apt-get22:05:250
590699757,19cyclictest20507-21apt-get19:50:140
590699757,19cyclictest17695-21apt-get00:15:130
590699754,23cyclictest6985-21cron23:45:010
590699753,33cyclictest254-21systemd-journal20:21:040
5906997526,42cyclictest448-21dbus-daemon00:15:000
5906997520,17cyclictest12983-21cut21:00:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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