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2025-12-15 - 05:05
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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
Characteristics of the 376 highest latencies:
System rackcslot4.osadl.org (updated Mon Dec 15, 2025 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35662112264187,27sleep10-21swapper/119:07:181
35661242257184,58sleep00-21swapper/019:06:230
36359582500,1chrt3635959-21/usr/sbin/munin22:00:211
179699450,3rtkit-daemon0-21swapper/100:36:441
179699450,3rtkit-daemon0-21swapper/021:00:490
36165792430,3sleep03615708-21/usr/sbin/munin21:10:210
179699430,3rtkit-daemon0-21swapper/100:16:131
179699420,3rtkit-daemon0-21swapper/100:04:581
179699410,3rtkit-daemon0-21swapper/123:45:131
179699410,3rtkit-daemon0-21swapper/122:34:131
179699390,3rtkit-daemon0-21swapper/021:57:400
179699390,3rtkit-daemon0-21swapper/020:27:120
179699350,6rtkit-daemon3665865-21memory23:15:210
179699350,6rtkit-daemon3649863-21load22:35:190
356659999349,7cyclictest26-21ksoftirqd/119:40:101
179699340,5rtkit-daemon3566589-21cyclictest22:58:450
3566599993213,5cyclictest26-21ksoftirqd/123:15:011
3566599993210,5cyclictest26-21ksoftirqd/100:20:241
3566596993211,6cyclictest13-21ksoftirqd/022:30:250
3566596993210,6cyclictest13-21ksoftirqd/021:00:000
3566596993112,5cyclictest13-21ksoftirqd/000:15:000
3566596993111,5cyclictest13-21ksoftirqd/023:55:000
3566596993111,5cyclictest13-21ksoftirqd/023:55:000
356659999308,7cyclictest26-21ksoftirqd/119:20:001
356659999308,6cyclictest26-21ksoftirqd/100:29:341
356659999306,3cyclictest141rcu_preempt00:30:121
356659999302,6cyclictest3671594-40apt-check23:30:181
3566599993011,5cyclictest26-21ksoftirqd/122:10:021
356659699309,7cyclictest13-21ksoftirqd/021:50:000
3566596993011,5cyclictest13-21ksoftirqd/023:45:010
356659699299,6cyclictest13-21ksoftirqd/022:05:000
356659699299,6cyclictest13-21ksoftirqd/020:20:000
356659699299,5cyclictest13-21ksoftirqd/023:10:010
356659699299,5cyclictest13-21ksoftirqd/019:55:010
356659699293,5cyclictest141rcu_preempt19:40:120
3566596992912,11cyclictest3605566-21apt-get20:45:130
3566596992910,5cyclictest13-21ksoftirqd/020:05:000
356659699288,5cyclictest13-21ksoftirqd/020:30:240
179699280,7rtkit-daemon3615574-21latency_hist21:10:010
179699280,5rtkit-daemon3681016-21taskset23:53:301
179699280,5rtkit-daemon3681016-21taskset23:53:301
36451942270,2sleep13643190-1kworker/1:2H22:25:011
3566599992712,9cyclictest3651644-21apt-get22:40:151
356659999271,21cyclictest3607829-40apt-check20:50:121
3566599992711,5cyclictest26-21ksoftirqd/100:00:011
356659699273,17cyclictest3695838-21appstreamcli00:30:020
356659699272,4cyclictest141rcu_preempt23:30:010
179699270,4rtkit-daemon0-21swapper/123:00:191
3566599992614,2cyclictest26-21ksoftirqd/121:35:001
356659699269,5cyclictest13-21ksoftirqd/021:35:270
356659699262,4cyclictest141rcu_preempt21:15:130
3566596992613,6cyclictest3595419-21apt-get20:20:140
3566596992612,7cyclictest3683365-21apt-get00:00:130
356659999254,4cyclictest26-21ksoftirqd/121:55:231
356659999254,3cyclictest141rcu_preempt23:36:051
3566599992521,2cyclictest261ksoftirqd/120:50:001
356659999250,23cyclictest3578829-21python319:40:011
356659699256,2cyclictest141rcu_preempt21:20:240
356659699256,2cyclictest141rcu_preempt21:20:240
356659699255,3cyclictest141rcu_preempt23:55:250
356659699255,13cyclictest3631326-21apt-get21:50:160
356659699253,15cyclictest3603627-21apt-get20:40:150
356659699252,3cyclictest141rcu_preempt22:05:260
356659699252,16cyclictest3643436-21apt-get22:20:160
356659699251,5cyclictest141rcu_preempt00:05:140
356659699251,4cyclictest13-21ksoftirqd/019:40:000
3566596992513,6cyclictest161rcuc/023:10:120
179699250,5rtkit-daemon3567405-21strings19:10:160
179699250,4rtkit-daemon0-21swapper/122:08:061
179699250,3rtkit-daemon0-21swapper/122:54:581
179699250,3rtkit-daemon0-21swapper/100:10:231
356659999246,3cyclictest141rcu_preempt22:55:321
356659999246,2cyclictest141rcu_preempt22:27:581
356659999242,4cyclictest141rcu_preempt19:10:111
356659999241,4cyclictest141rcu_preempt20:00:031
356659999240,4cyclictest3616805-21sort21:10:231
356659699242,16cyclictest3693107-21apt-get00:25:110
356659699242,16cyclictest3655528-21apt-get22:50:150
356659699242,15cyclictest850-21runrttasks20:05:150
356659699242,15cyclictest3645374-21apt-get22:25:130
356659699242,15cyclictest3601664-21apt-get20:35:170
356659699241,6cyclictest763-21dbus-daemon19:45:250
356659699241,4cyclictest141rcu_preempt19:15:220
356659699241,4cyclictest141rcu_preempt00:35:070
179699240,5rtkit-daemon3665264-21apt-get23:15:151
179699240,3rtkit-daemon0-21swapper/123:25:161
179699240,3rtkit-daemon0-21swapper/123:05:291
179699240,3rtkit-daemon0-21swapper/122:38:211
179699240,3rtkit-daemon0-21swapper/100:05:211
356659999234,3cyclictest141rcu_preempt20:05:231
356659999233,11cyclictest3585249-21apt-get19:55:151
356659999232,3cyclictest141rcu_preempt21:40:181
356659999232,3cyclictest141rcu_preempt20:30:001
3566599992318,3cyclictest3621372-21sh21:25:001
3566599992318,3cyclictest3621372-21sh21:25:001
356659999231,4cyclictest141rcu_preempt20:30:071
3566599992313,7cyclictest3581561-21df19:45:151
356659999230,21cyclictest3642849-21chrt22:16:181
356659699237,2cyclictest141rcu_preempt19:30:240
356659699233,3cyclictest141rcu_preempt23:30:000
356659699233,2cyclictest141rcu_preempt00:20:230
356659699232,11cyclictest141rcu_preempt20:50:120
3566596992316,5cyclictest13-21ksoftirqd/022:15:010
356659699231,4cyclictest3678021-21uname23:45:200
356659699231,3cyclictest141rcu_preempt21:25:120
356659699231,16cyclictest3571209-21apt-get19:20:140
356659699230,4cyclictest141rcu_preempt20:00:010
179699230,3rtkit-daemon0-21swapper/122:45:091
179699230,3rtkit-daemon0-21swapper/023:36:230
356659999223,2cyclictest141rcu_preempt21:50:001
356659999222,3cyclictest141rcu_preempt21:35:271
3566599992219,2cyclictest3614095-21kworker/1:121:15:131
356659999221,3cyclictest141rcu_preempt19:20:211
3566599992210,3cyclictest26-21ksoftirqd/123:20:171
356659999220,6cyclictest3591492-21acpi20:10:121
356659999220,3cyclictest141rcu_preempt20:20:131
356659999220,3cyclictest141rcu_preempt20:20:011
356659699225,3cyclictest141rcu_preempt00:19:270
356659699223,10cyclictest3641468-21apt-get22:15:140
356659699222,15cyclictest3573147-21apt-get19:25:140
356659699222,14cyclictest3659437-21apt-get23:00:160
356659699222,14cyclictest3627439-21apt-get21:40:140
356659699222,14cyclictest3591508-21apt-get20:10:150
356659699222,13cyclictest3651467-21cnf-update-db22:40:020
3566596992210,2cyclictest131ksoftirqd/022:45:180
356659999212,4cyclictest141rcu_preempt19:50:211
356659999212,17cyclictest0-21swapper/121:25:171
3566599992117,2cyclictest0-21swapper/123:40:161
356659999211,3cyclictest141rcu_preempt21:50:231
356659999211,3cyclictest141rcu_preempt20:35:251
356659999211,2cyclictest141rcu_preempt20:40:121
356659999210,4cyclictest141rcu_preempt21:05:001
356659999210,3cyclictest141rcu_preempt21:05:181
356659699211,3cyclictest3668964-21cron23:25:010
3566596992110,2cyclictest13-21ksoftirqd/021:30:140
356659999209,2cyclictest26-21ksoftirqd/119:25:121
356659999203,2cyclictest141rcu_preempt20:55:121
356659999201,2cyclictest26-21ksoftirqd/119:30:161
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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