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2026-01-05 - 02:18
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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 highest latencies:
System rackcslot4.osadl.org (updated Sun Jan 04, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22620962263190,58sleep10-21swapper/107:09:081
22619042239197,27sleep00-21swapper/007:07:030
24502312770,4sleep10-21swapper/112:00:281
23429912640,9sleep013-21ksoftirqd/009:47:440
179699600,4rtkit-daemon1795-21rtkit-daemon11:58:471
179699580,3rtkit-daemon1795-21rtkit-daemon07:15:241
23983552560,11sleep126-21ksoftirqd/110:56:131
23278292550,4sleep12327826-21sh09:29:431
22793532540,4sleep1251rcuc/107:50:001
179699510,4rtkit-daemon1795-21rtkit-daemon07:54:491
24468622500,5sleep00-21swapper/011:56:290
179699490,4rtkit-daemon1795-21rtkit-daemon12:13:331
179699480,4rtkit-daemon2426423-21ssh11:30:440
179699480,4rtkit-daemon1795-21rtkit-daemon11:05:491
179699480,3rtkit-daemon0-21swapper/008:58:360
23378572470,4sleep02336450-21/usr/sbin/munin09:40:270
23661232460,1sleep00-21swapper/010:16:040
23194502460,1chrt2319451-21cat09:19:550
179699460,3rtkit-daemon0-21swapper/011:48:490
23552972440,1sleep00-21swapper/010:03:240
179699440,3rtkit-daemon0-21swapper/107:50:110
179699430,3rtkit-daemon0-21swapper/012:32:260
179699410,3rtkit-daemon0-21swapper/011:18:450
179699400,3rtkit-daemon0-21swapper/107:57:460
179699400,3rtkit-daemon0-21swapper/011:41:210
23684342390,4sleep10-21swapper/110:20:031
226230899390,37cyclictest0-21swapper/110:33:181
179699390,4rtkit-daemon1795-21rtkit-daemon10:53:511
24203102380,5sleep12420176-21python311:25:011
179699380,5rtkit-daemon1795-21rtkit-daemon10:37:431
179699380,3rtkit-daemon0-21swapper/108:22:280
179699380,3rtkit-daemon0-21swapper/011:26:280
179699380,3rtkit-daemon0-21swapper/011:11:550
179699380,1rtkit-daemon1795-21rtkit-daemon11:39:320
2262301993710,14cyclictest13-21ksoftirqd/008:05:130
179699370,4rtkit-daemon1795-21rtkit-daemon12:27:241
179699370,4rtkit-daemon1795-21rtkit-daemon09:53:141
179699370,4rtkit-daemon1795-21rtkit-daemon09:17:131
179699370,3rtkit-daemon1795-21rtkit-daemon07:25:590
23605672360,12sleep02360680-21tr10:10:140
179699360,4rtkit-daemon1795-21rtkit-daemon12:21:091
179699360,4rtkit-daemon1795-21rtkit-daemon10:45:051
179699360,4rtkit-daemon1795-21rtkit-daemon09:46:131
179699360,4rtkit-daemon1795-21rtkit-daemon09:33:111
179699360,3rtkit-daemon1795-21rtkit-daemon09:56:171
226230199357,15cyclictest13-21ksoftirqd/007:35:130
2262301993518,5cyclictest2460312-21ssh12:14:240
2262301993515,5cyclictest13-21ksoftirqd/007:20:000
179699350,4rtkit-daemon1795-21rtkit-daemon12:18:341
179699340,3rtkit-daemon1795-21rtkit-daemon11:02:121
226230899339,5cyclictest26-21ksoftirqd/109:12:411
226230899339,4cyclictest26-21ksoftirqd/109:38:431
2262308993330,2cyclictest2295157-21kworker/1:208:30:211
226230199339,7cyclictest13-21ksoftirqd/008:00:130
226230199338,7cyclictest13-21ksoftirqd/007:10:130
179699330,4rtkit-daemon1795-21rtkit-daemon10:44:401
179699330,3rtkit-daemon1795-21rtkit-daemon10:55:010
179699330,3rtkit-daemon1795-21rtkit-daemon08:17:131
226230199327,7cyclictest13-21ksoftirqd/011:50:130
2262301993210,6cyclictest13-21ksoftirqd/012:02:160
179699320,4rtkit-daemon1795-21rtkit-daemon10:17:061
179699320,3rtkit-daemon1795-21rtkit-daemon08:27:311
179699320,3rtkit-daemon1795-21rtkit-daemon07:32:081
179699320,3rtkit-daemon1795-21rtkit-daemon07:32:081
226230199318,7cyclictest13-21ksoftirqd/007:20:140
226230199316,7cyclictest13-21ksoftirqd/009:50:220
226230199315,7cyclictest13-21ksoftirqd/010:25:460
2262301993115,11cyclictest2289317-21apt-get08:15:150
2262301993113,11cyclictest2347006-1kworker/u9:110:40:140
2262301993112,6cyclictest13-21ksoftirqd/008:25:130
179699310,3rtkit-daemon1795-21rtkit-daemon08:22:341
2262308993015,8cyclictest2420829-21apt-get11:25:141
226230199309,7cyclictest13-21ksoftirqd/012:25:000
226230199309,6cyclictest13-21ksoftirqd/009:20:020
226230199308,7cyclictest13-21ksoftirqd/009:10:010
226230199305,8cyclictest13-21ksoftirqd/008:30:120
226230199304,7cyclictest850-21runrttasks08:40:110
226230199301,7cyclictest2311057-21diskmemload10:38:330
2262301993010,6cyclictest13-21ksoftirqd/010:55:020
2262301993010,3cyclictest2301700-21apt-get08:45:180
23886332290,2sleep00-21swapper/010:45:110
2262308992926,2cyclictest2275660-21kworker/1:207:40:341
226230199298,7cyclictest13-21ksoftirqd/007:30:020
226230199298,7cyclictest13-21ksoftirqd/007:30:020
226230199297,4cyclictest13-21ksoftirqd/008:50:140
226230199296,8cyclictest13-21ksoftirqd/009:31:470
226230199296,7cyclictest2297893-21awk08:35:200
226230199293,6cyclictest13-21ksoftirqd/010:30:150
226230199291,15cyclictest2311057-21diskmemload11:21:000
2262301992911,5cyclictest13-21ksoftirqd/012:35:140
2262301992910,5cyclictest13-21ksoftirqd/010:10:010
2262301992910,4cyclictest13-21ksoftirqd/012:10:010
2262308992817,9cyclictest2300895-21python308:45:001
226230199289,5cyclictest13-21ksoftirqd/007:45:010
226230199287,7cyclictest13-21ksoftirqd/012:17:040
226230199287,7cyclictest13-21ksoftirqd/010:21:440
226230199287,7cyclictest13-21ksoftirqd/009:55:450
226230199285,8cyclictest13-21ksoftirqd/009:38:470
226230199285,3cyclictest141rcu_preempt09:10:120
226230199284,7cyclictest13-21ksoftirqd/012:25:120
2262301992810,5cyclictest13-21ksoftirqd/008:10:130
226230199280,14cyclictest2311057-21diskmemload11:02:190
226230899278,17cyclictest261ksoftirqd/111:50:221
2262308992724,2cyclictest66950irq/132-enp2s011:42:341
2262308992724,2cyclictest18150irq/39-mmc009:05:011
2262308992714,9cyclictest2301481-21apt-get08:45:151
226230199277,6cyclictest13-21ksoftirqd/011:10:010
226230199272,7cyclictest13-21ksoftirqd/009:00:140
226230199271,7cyclictest2311057-21diskmemload09:29:160
2262308992619,5cyclictest26-21ksoftirqd/107:40:001
2262308992613,4cyclictest26-21ksoftirqd/112:35:551
226230899254,17cyclictest2311057-21diskmemload11:15:171
226230899251,5cyclictest141rcu_preempt10:05:121
2262308992514,9cyclictest2437694-21cut11:45:241
226230899251,18cyclictest2311082-21kworker/u8:009:20:131
2262308992511,5cyclictest26-21ksoftirqd/112:05:151
2262308992511,13cyclictest26-21ksoftirqd/111:40:001
2262308992421,2cyclictest66950irq/132-enp2s011:33:301
2262308992413,9cyclictest2270666-21python307:30:001
226230199241,7cyclictest13-21ksoftirqd/007:45:130
226230899226,14cyclictest2336849-21fw_packets09:40:181
226230899225,8cyclictest24762821rm12:34:261
2262308992210,7cyclictest66950irq/132-enp2s011:10:121
179699220,14rtkit-daemon0-21swapper/110:28:581
226230899213,16cyclictest2289120-21latency_hist08:15:011
2262308992119,1cyclictest0-21swapper/108:05:171
2262308992111,2cyclictest141rcu_preempt10:00:151
226230899210,2cyclictest141rcu_preempt08:35:171
226230899201,17cyclictest2303074-21kworker/1:208:50:051
2262308992010,3cyclictest26-21ksoftirqd/107:55:131
226230899196,6cyclictest2305382-21apt-get08:55:131
226230899191,9cyclictest2362191-21ssh10:10:571
2262308991914,3cyclictest2284222-21ntp_offset08:00:211
2262308991911,6cyclictest2309523-21forks09:05:171
2262308991812,4cyclictest2264194-21munin-run07:15:001
2262308991712,3cyclictest2267092-21cstates07:20:161
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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