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2026-06-29 - 14:25
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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 100 highest latencies:
System rackcslot4.osadl.org (updated Mon Jun 29, 2026 00:44:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
335827023620,9sleep00-21swapper/019:05:300
335827023620,9sleep00-21swapper/019:05:300
33586182255179,26sleep10-21swapper/119:06:271
33586182255179,26sleep10-21swapper/119:06:271
342294921260,2sleep10-21swapper/121:30:141
335917499562,10cyclictest3422925-21apt-get21:30:140
179699550,3rtkit-daemon1795-21rtkit-daemon21:11:380
179699530,4rtkit-daemon1795-21rtkit-daemon19:15:590
335917499522,7cyclictest3541540-21apt-get00:15:150
179699520,3rtkit-daemon1795-21rtkit-daemon20:07:401
179699500,4rtkit-daemon1795-21rtkit-daemon20:42:260
35099282490,4sleep10-21swapper/123:30:011
335917499493,7cyclictest3388586-21apt-get20:20:130
335917499493,10cyclictest3419252-21apt-get21:25:140
179699490,4rtkit-daemon1795-21rtkit-daemon21:03:140
179699490,3rtkit-daemon1795-21rtkit-daemon21:06:470
179699490,14rtkit-daemon3407926-21diskmemload22:33:351
335917499471,8cyclictest3364245-21apt-get19:20:130
3359174994610,5cyclictest3407926-21diskmemload22:54:380
179699440,6rtkit-daemon3404228-21apt-get21:00:131
33630142420,5sleep10-21swapper/119:15:201
3359174994212,10cyclictest3531349-21kworker/u8:200:05:120
179699420,4rtkit-daemon1795-21rtkit-daemon22:54:431
335917499413,9cyclictest3441403-21apt-get21:55:140
34581782400,1sleep10-21swapper/122:17:381
179699400,3rtkit-daemon1795-21rtkit-daemon22:28:110
179699390,3rtkit-daemon1795-21rtkit-daemon19:41:451
335917499382,10cyclictest3549046-21apt-get00:25:130
179699380,3rtkit-daemon0-21swapper/020:52:190
179699380,3rtkit-daemon0-21swapper/020:35:001
335917499372,9cyclictest3517017-21apt-get23:40:140
179699370,4rtkit-daemon3528148-21diskstats23:55:160
179699370,3rtkit-daemon0-21swapper/100:24:190
179699370,3rtkit-daemon0-21swapper/100:20:331
179699370,1rtkit-daemon1795-21rtkit-daemon22:42:021
335917499362,7cyclictest3495355-21apt-get23:10:140
179699360,3rtkit-daemon0-21swapper/123:00:200
179699360,3rtkit-daemon0-21swapper/119:54:131
179699360,3rtkit-daemon0-21swapper/019:28:150
3359176993514,4cyclictest26-21ksoftirqd/123:00:171
335917499352,15cyclictest3415813-21apt-get21:20:160
179699350,4rtkit-daemon1795-21rtkit-daemon00:05:281
179699350,3rtkit-daemon1795-21rtkit-daemon23:21:230
179699350,3rtkit-daemon0-21swapper/100:34:001
179699350,3rtkit-daemon0-21swapper/020:58:420
179699350,3rtkit-daemon0-21swapper/020:45:440
335917499342,8cyclictest3359732-21apt-get19:10:230
179699340,4rtkit-daemon1795-21rtkit-daemon21:22:471
179699340,3rtkit-daemon1795-21rtkit-daemon22:22:240
179699340,3rtkit-daemon0-21swapper/023:36:190
179699340,3rtkit-daemon0-21swapper/022:10:031
179699340,3rtkit-daemon0-21swapper/021:58:151
335917499332,9cyclictest3437904-21apt-get21:50:130
335917499332,12cyclictest3392486-21apt-get20:30:140
335917499331,11cyclictest3430155-21apt-get21:40:120
335917499331,10cyclictest3375258-21ntp_states19:45:220
179699330,4rtkit-daemon1795-21rtkit-daemon00:37:531
179699330,3rtkit-daemon0-21swapper/119:39:301
179699330,3rtkit-daemon0-21swapper/023:32:590
179699330,3rtkit-daemon0-21swapper/023:30:191
179699330,3rtkit-daemon0-21swapper/021:36:591
179699330,16rtkit-daemon3531804-21runrttasks00:00:151
3359176993220,6cyclictest3359709-40apt-check19:10:211
335917499322,10cyclictest3380358-21apt-get20:00:120
179699320,4rtkit-daemon1795-21rtkit-daemon22:36:251
179699320,4rtkit-daemon1795-21rtkit-daemon19:59:031
179699320,3rtkit-daemon1795-21rtkit-daemon23:16:510
179699320,3rtkit-daemon0-21swapper/023:44:091
179699320,3rtkit-daemon0-21swapper/022:29:051
179699320,3rtkit-daemon0-21swapper/022:24:091
179699320,1rtkit-daemon1795-21rtkit-daemon19:45:581
335917499313,8cyclictest3368192-21apt-get19:30:140
335917499313,7cyclictest3390533-21apt-get20:25:140
179699310,6rtkit-daemon0-21swapper/122:49:320
179699310,4rtkit-daemon1795-21rtkit-daemon21:26:211
179699310,3rtkit-daemon1795-21rtkit-daemon22:46:001
179699310,3rtkit-daemon1795-21rtkit-daemon20:00:421
179699310,3rtkit-daemon0-21swapper/022:05:311
3359176993013,11cyclictest3538500-21apt-get00:10:141
335917499302,12cyclictest3521464-21idleruntime23:45:180
335917499301,11cyclictest3426692-21apt-get21:35:140
179699300,4rtkit-daemon1795-21rtkit-daemon23:21:011
179699300,3rtkit-daemon0-21swapper/023:10:521
179699300,3rtkit-daemon0-21swapper/021:42:031
179699290,4rtkit-daemon0-21swapper/022:59:271
179699290,3rtkit-daemon0-21swapper/021:50:221
179699290,3rtkit-daemon0-21swapper/021:12:291
3359176992824,2cyclictest3448005-21ssh22:04:101
3359176992812,2cyclictest141rcu_preempt23:05:231
179699280,4rtkit-daemon1795-21rtkit-daemon22:15:260
179699280,4rtkit-daemon1795-21rtkit-daemon20:14:560
179699280,4rtkit-daemon0-21swapper/021:15:041
179699280,3rtkit-daemon0-21swapper/020:50:031
179699280,24rtkit-daemon1710-21kerneloops23:56:291
179699280,23rtkit-daemon3359161-21cyclictest20:40:201
335917699271,22cyclictest3548404-21python300:25:031
179699270,3rtkit-daemon0-21swapper/119:54:550
179699270,3rtkit-daemon0-21swapper/021:06:541
179699270,22rtkit-daemon3369776-21GUsbEventThread20:09:580
335917699266,9cyclictest26-21ksoftirqd/121:45:351
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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