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2026-03-10 - 09:39
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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 792 highest latencies:
System rackcslot4.osadl.org (updated Tue Mar 10, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2327922265189,28sleep10-21swapper/119:08:231
2327532260219,26sleep00-21swapper/019:07:580
179699670,4rtkit-daemon1795-21rtkit-daemon20:09:000
3541982560,4sleep10-21swapper/122:48:261
179699520,4rtkit-daemon1795-21rtkit-daemon00:12:181
179699500,4rtkit-daemon1795-21rtkit-daemon23:31:161
179699500,3rtkit-daemon1795-21rtkit-daemon21:21:371
179699450,4rtkit-daemon1795-21rtkit-daemon21:52:571
3182302420,1sleep00-21swapper/021:59:130
179699390,6rtkit-daemon1795-21rtkit-daemon19:15:130
179699380,3rtkit-daemon0-21swapper/122:11:051
179699380,3rtkit-daemon0-21swapper/020:23:010
179699380,21rtkit-daemon0-21swapper/122:02:411
179699370,3rtkit-daemon1795-21rtkit-daemon21:45:231
179699370,3rtkit-daemon0-21swapper/120:32:561
179699370,3rtkit-daemon0-21swapper/100:19:521
179699360,4rtkit-daemon1795-21rtkit-daemon19:10:350
179699350,6rtkit-daemon326012-21ssh22:10:020
179699350,3rtkit-daemon1795-21rtkit-daemon23:39:371
179699350,3rtkit-daemon1795-21rtkit-daemon21:25:111
179699350,3rtkit-daemon0-21swapper/122:08:151
179699350,3rtkit-daemon0-21swapper/121:10:581
179699350,3rtkit-daemon0-21swapper/120:27:541
179699350,3rtkit-daemon0-21swapper/120:02:001
179699340,5rtkit-daemon302965-21ssh21:36:560
179699340,4rtkit-daemon1795-21rtkit-daemon20:19:490
179699340,3rtkit-daemon0-21swapper/121:25:520
179699340,3rtkit-daemon0-21swapper/023:00:021
179699330,4rtkit-daemon1795-21rtkit-daemon22:54:431
179699330,4rtkit-daemon1795-21rtkit-daemon20:46:101
179699330,4rtkit-daemon1795-21rtkit-daemon00:28:061
179699330,4rtkit-daemon1795-21rtkit-daemon00:23:501
179699330,3rtkit-daemon0-21swapper/123:17:391
179699330,3rtkit-daemon0-21swapper/121:08:110
179699330,3rtkit-daemon0-21swapper/019:10:571
179699320,5rtkit-daemon422182-21ssh00:24:080
179699320,5rtkit-daemon1795-21rtkit-daemon00:32:501
179699320,4rtkit-daemon1795-21rtkit-daemon00:35:511
179699320,3rtkit-daemon1795-21rtkit-daemon22:50:170
179699320,3rtkit-daemon1795-21rtkit-daemon22:15:351
179699320,3rtkit-daemon1795-21rtkit-daemon00:31:100
179699320,3rtkit-daemon0-21swapper/123:16:520
179699320,3rtkit-daemon0-21swapper/023:58:281
233077993128,2cyclictest66950irq/132-enp2s023:51:061
179699310,4rtkit-daemon1795-21rtkit-daemon23:42:471
179699310,4rtkit-daemon1795-21rtkit-daemon20:58:171
179699310,3rtkit-daemon0-21swapper/122:23:140
179699310,3rtkit-daemon0-21swapper/121:12:310
179699310,3rtkit-daemon0-21swapper/022:42:281
179699310,3rtkit-daemon0-21swapper/022:34:161
179699310,3rtkit-daemon0-21swapper/019:24:241
233077993016,8cyclictest251896-21apt-get19:55:221
23307799300,6cyclictest0-21swapper/121:15:171
179699300,4rtkit-daemon425517-21ssh00:28:380
179699300,4rtkit-daemon1795-21rtkit-daemon19:39:071
179699300,3rtkit-daemon1795-21rtkit-daemon00:02:560
179699300,3rtkit-daemon0-21swapper/123:31:290
179699300,3rtkit-daemon0-21swapper/100:13:460
179699300,3rtkit-daemon0-21swapper/021:05:511
179699300,3rtkit-daemon0-21swapper/019:27:511
233077992925,2cyclictest284-20systemd-journal23:30:001
179699290,4rtkit-daemon1795-21rtkit-daemon00:00:131
179699290,3rtkit-daemon0-21swapper/123:28:570
179699290,3rtkit-daemon0-21swapper/123:05:220
179699290,3rtkit-daemon0-21swapper/122:55:050
179699290,3rtkit-daemon0-21swapper/122:01:210
179699290,3rtkit-daemon0-21swapper/120:58:110
179699290,3rtkit-daemon0-21swapper/120:38:440
179699290,3rtkit-daemon0-21swapper/120:30:020
179699290,3rtkit-daemon0-21swapper/120:03:400
179699290,3rtkit-daemon0-21swapper/119:57:280
179699290,3rtkit-daemon0-21swapper/119:50:160
23307799287,4cyclictest0-21swapper/123:10:181
179699280,4rtkit-daemon367990-21ssh23:07:181
179699280,3rtkit-daemon0-21swapper/121:02:150
179699280,3rtkit-daemon0-21swapper/119:41:290
179699280,3rtkit-daemon0-21swapper/100:35:580
179699280,23rtkit-daemon388513-21grep23:35:230
23307799270,7cyclictest0-21swapper/120:07:321
23307399272,17cyclictest348112-21apt-get22:40:120
179699270,3rtkit-daemon0-21swapper/121:51:020
179699270,3rtkit-daemon0-21swapper/000:08:171
23307799260,6cyclictest0-21swapper/120:37:211
179699260,3rtkit-daemon0-21swapper/120:26:280
179699260,3rtkit-daemon0-21swapper/022:29:111
179699260,20rtkit-daemon233067-21cyclictest20:44:190
179699260,1rtkit-daemon1795-21rtkit-daemon23:45:080
179699260,1rtkit-daemon1795-21rtkit-daemon23:00:230
2510732250,9sleep10-21swapper/119:53:571
23307799252,14cyclictest304488-21apt-get21:40:141
233073992512,8cyclictest411021-1kworker/u9:200:15:130
233073992510,4cyclictest347828-21cron22:40:010
179699250,20rtkit-daemon233067-21cyclictest20:52:480
23307799249,10cyclictest333735-21apt-get22:20:131
233077992412,6cyclictest66950irq/132-enp2s021:55:121
23307399242,15cyclictest237722-21apt-get19:20:120
23307399240,6cyclictest0-21swapper/022:05:490
179699240,1rtkit-daemon1795-21rtkit-daemon22:28:430
179699240,1rtkit-daemon1795-21rtkit-daemon20:40:431
179699240,19rtkit-daemon1795-21rtkit-daemon19:39:550
23307799234,12cyclictest258188-21apt-get20:10:131
23307799232,8cyclictest284-20systemd-journal19:19:591
233077992319,2cyclictest66950irq/132-enp2s020:15:191
23307799231,8cyclictest141rcu_preempt21:35:231
23307399232,17cyclictest308067-21apt-get21:45:140
23307399230,6cyclictest0-21swapper/022:45:520
23307399230,5cyclictest0-21swapper/021:18:430
23307799228,8cyclictest273827-21apt-get20:50:141
23307799222,14cyclictest344415-21apt-get22:35:121
23307799222,14cyclictest245543-21apt-get19:40:131
23307399223,12cyclictest397845-21apt-get23:50:130
23307399222,14cyclictest290136-21apt-get21:20:130
23307399222,14cyclictest247492-21apt-get19:45:140
23307399222,11cyclictest271878-21apt-get20:45:150
23307399221,10cyclictest379945-21grep23:25:010
179699220,13rtkit-daemon0-21swapper/022:34:510
23307799218,11cyclictest26-21ksoftirqd/122:55:221
23307799217,12cyclictest0-21swapper/121:30:131
23307799213,11cyclictest241621-21apt-get19:30:111
23307799212,14cyclictest262110-21apt-get20:20:141
23307799211,14cyclictest376562-21apt-get23:20:141
23307399214,10cyclictest297188-21apt-get21:30:130
23307399212,12cyclictest239671-21apt-get19:25:100
23307399211,6cyclictest0-21swapper/000:10:000
23307399210,5cyclictest0-21swapper/021:43:560
23307799200,7cyclictest249229-21cron19:49:591
23307399202,5cyclictest13-21ksoftirqd/023:57:010
23307399202,5cyclictest13-21ksoftirqd/022:16:410
23307399202,13cyclictest369507-21apt-get23:10:150
23307399200,18cyclictest393825-21ssh23:44:240
23307799197,10cyclictest26-21ksoftirqd/123:45:141
233073991910,7cyclictest242378-21ntpq19:30:200
179699190,12rtkit-daemon0-21swapper/020:10:560
23307799181,12cyclictest277975-21cnf-update-db21:00:021
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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