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2025-12-24 - 05:41
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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 rack8slot4.osadl.org (updated Wed Dec 24, 2025 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24658002237178,21sleep50-21swapper/519:06:085
24658072232178,17sleep30-21swapper/319:06:143
24657412231171,20sleep20-21swapper/219:05:182
24657402230174,18sleep10-21swapper/119:05:171
24658552224168,18sleep60-21swapper/619:06:586
24657262221167,17sleep70-21swapper/719:05:067
24680022216186,19sleep00-21swapper/019:09:580
24679512214179,22sleep40-21swapper/419:09:124
246824199534,25cyclictest0-21swapper/320:48:553
246823599320,31cyclictest2648183-21apt00:40:001
246823599320,31cyclictest2607257-21debian-sa123:25:011
246825299310,30cyclictest2470986-21cat19:15:027
246825299300,2cyclictest2621618-21apt-get23:53:167
2468243993028,1cyclictest0-21swapper/420:05:004
246824399300,29cyclictest2470805-21latency_hist19:15:014
246823799300,2cyclictest2585717-21munin-run22:45:022
246823599300,2cyclictest1-21systemd21:00:001
2468230993026,3cyclictest2588398-21apt22:50:020
246823099300,2cyclictest2542095-21sh21:25:010
246823099300,29cyclictest0-21swapper/022:38:160
2468252992927,1cyclictest2634459-21apt00:15:007
2468252992927,1cyclictest2624304-21apt-get23:58:157
246825299290,28cyclictest0-21swapper/722:38:157
246825299290,28cyclictest0-21swapper/721:08:197
2468248992925,3cyclictest2599166-21latency_hist23:10:016
246824899290,28cyclictest2534396-21http21:13:156
246824899290,28cyclictest0-21swapper/622:50:026
246824899290,28cyclictest0-21swapper/622:43:166
246824899290,28cyclictest0-21swapper/619:13:166
2468246992927,1cyclictest2536440-21dump-pmu-power21:15:005
246824699290,29cyclictest2580311-21idleruntime-cro22:35:015
246824699290,28cyclictest0-21swapper/521:28:155
246824699290,28cyclictest0-21swapper/500:28:165
246824699290,1cyclictest2567231-21apt-get22:13:175
246824399290,28cyclictest0-21swapper/423:53:174
246824399290,28cyclictest0-21swapper/421:53:164
246824399290,28cyclictest0-21swapper/419:58:174
246824399290,1cyclictest2514574-21sh20:35:014
246824399290,1cyclictest0-21swapper/421:20:014
2468241992928,1cyclictest0-21swapper/300:10:003
2468241992927,1cyclictest2575577-21apt-get22:28:153
2468241992925,3cyclictest2495715-21dump-pmu-power20:00:013
246824199290,28cyclictest2480214-21apt-get19:33:173
246824199290,28cyclictest0-21swapper/322:53:153
246824199290,28cyclictest0-21swapper/322:13:183
246824199290,28cyclictest0-21swapper/320:53:143
246824199290,1cyclictest2501750-21apt-get20:13:153
246824199290,1cyclictest0-21swapper/323:13:153
2468237992927,1cyclictest2646141-21apt-get00:38:152
2468237992927,1cyclictest2609943-21idleruntime-cro23:30:022
2468237992927,1cyclictest2525337-21cron20:55:002
246823799290,28cyclictest0-21swapper/220:33:152
246823799290,1cyclictest0-21swapper/222:15:022
2468235992928,1cyclictest2545432-21apt-get21:33:161
2468235992928,1cyclictest0-21swapper/122:40:021
246823599290,28cyclictest2482901-21apt-get19:38:161
246823599290,28cyclictest0-21swapper/121:45:011
246823599290,28cyclictest0-21swapper/120:18:191
246823599290,28cyclictest0-21swapper/100:33:161
246823599290,1cyclictest2490339-21latency_hist19:50:001
246823599290,1cyclictest0-21swapper/120:53:151
2468230992927,1cyclictest681-21dbus-daemon00:05:010
2468230992927,1cyclictest2556462-21apt-get21:53:140
2468230992927,1cyclictest2472130-21apt-get19:18:160
246823099290,28cyclictest2597127-21apt-get23:08:190
246823099290,28cyclictest2488294-21apt-get19:48:130
246823099290,28cyclictest0-21swapper/021:58:150
246823099290,28cyclictest0-21swapper/020:43:160
246823099290,1cyclictest0-21swapper/023:40:020
2468252992828,0cyclictest0-21swapper/719:20:017
2468252992827,1cyclictest1-21systemd20:00:017
2468252992827,1cyclictest0-21swapper/723:48:167
2468252992827,1cyclictest0-21swapper/721:03:137
2468252992827,1cyclictest0-21swapper/720:18:187
2468252992826,1cyclictest2602503-21apt-get23:18:177
2468252992826,1cyclictest0-21swapper/723:03:157
2468248992826,1cyclictest0-21swapper/600:15:006
246824899280,27cyclictest0-21swapper/622:38:166
2468246992827,0cyclictest2586350-21apt-get22:48:165
246824699280,28cyclictest0-21swapper/521:10:005
246824699280,27cyclictest0-21swapper/520:43:165
246824699280,0cyclictest0-21swapper/520:58:175
246824399280,28cyclictest0-21swapper/419:50:014
246824399280,28cyclictest0-21swapper/400:18:154
246824399280,27cyclictest0-21swapper/421:38:164
2468241992826,1cyclictest2640133-21munin-run00:25:003
2468241992826,1cyclictest0-21swapper/319:45:003
246824199280,0cyclictest0-21swapper/323:43:173
246824199280,0cyclictest0-21swapper/321:53:153
2468237992827,1cyclictest0-21swapper/200:15:022
246823799280,0cyclictest0-21swapper/221:50:012
246823799280,0cyclictest0-21swapper/219:13:152
246823799280,0cyclictest0-21swapper/200:08:152
2468235992827,1cyclictest681-21dbus-daemon19:55:011
2468235992827,1cyclictest2635371-21apt-get00:18:161
2468235992827,1cyclictest0-21swapper/122:08:151
2468235992827,1cyclictest0-21swapper/122:08:151
2468235992827,1cyclictest0-21swapper/100:08:151
2468230992827,1cyclictest0-21swapper/019:23:160
246823099280,27cyclictest0-21swapper/023:18:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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