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2026-04-11 - 20:27
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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 Sat Apr 11, 2026 12:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11793632271197,59sleep00-21swapper/007:07:090
11795682259191,54sleep10-21swapper/107:09:211
12627292880,3sleep10-21swapper/109:57:521
13353452670,4sleep11335344-21sensors_temp11:40:231
179699660,4rtkit-daemon1795-21rtkit-daemon07:50:551
179699500,4rtkit-daemon1795-21rtkit-daemon12:27:181
179699500,4rtkit-daemon1795-21rtkit-daemon08:09:431
179699500,3rtkit-daemon1795-21rtkit-daemon12:10:191
179699490,4rtkit-daemon1795-21rtkit-daemon08:34:571
179699480,4rtkit-daemon1795-21rtkit-daemon11:17:461
13343982480,3sleep00-21swapper/011:40:140
1179781994613,10cyclictest26-21ksoftirqd/107:25:001
179699450,3rtkit-daemon1795-21rtkit-daemon08:27:530
179699440,10rtkit-daemon1187115-21ntp_states07:25:220
179699430,3rtkit-daemon1795-21rtkit-daemon08:24:180
179699400,7rtkit-daemon1289962-21kworker/u8:011:10:380
179699390,3rtkit-daemon0-21swapper/111:31:481
179699390,3rtkit-daemon0-21swapper/109:32:371
179699370,3rtkit-daemon0-21swapper/010:08:370
179699360,6rtkit-daemon1224542-21latency09:00:191
179699360,4rtkit-daemon1795-21rtkit-daemon12:24:551
179699360,4rtkit-daemon0-21swapper/009:05:191
179699360,3rtkit-daemon0-21swapper/112:15:431
179699360,3rtkit-daemon0-21swapper/110:07:091
1179781993629,5cyclictest1343173-21ssh11:51:291
179699350,4rtkit-daemon1795-21rtkit-daemon11:36:570
179699350,4rtkit-daemon1795-21rtkit-daemon11:21:481
179699350,3rtkit-daemon0-21swapper/110:30:531
179699350,3rtkit-daemon0-21swapper/007:56:410
179699340,4rtkit-daemon1795-21rtkit-daemon12:38:470
179699340,4rtkit-daemon1795-21rtkit-daemon10:55:510
179699340,4rtkit-daemon1248840-21ssh09:38:000
179699340,3rtkit-daemon0-21swapper/110:43:321
179699340,3rtkit-daemon0-21swapper/010:13:091
179699340,3rtkit-daemon0-21swapper/007:56:061
1179778993428,4cyclictest1294397-21rm10:42:140
179699330,4rtkit-daemon1795-21rtkit-daemon12:06:231
179699330,4rtkit-daemon1795-21rtkit-daemon07:41:201
179699330,3rtkit-daemon1795-21rtkit-daemon10:17:060
179699330,3rtkit-daemon0-21swapper/111:19:210
179699330,3rtkit-daemon0-21swapper/110:31:400
179699330,3rtkit-daemon0-21swapper/008:55:451
179699330,3rtkit-daemon0-21swapper/008:25:121
1179781993330,2cyclictest18150irq/39-mmc011:13:251
179699320,8rtkit-daemon1290709-21sh10:37:480
179699320,3rtkit-daemon0-21swapper/112:02:160
179699320,3rtkit-daemon0-21swapper/109:25:010
179699320,3rtkit-daemon0-21swapper/107:41:440
179699320,3rtkit-daemon0-21swapper/107:12:280
179699320,3rtkit-daemon0-21swapper/008:13:191
13119032320,5sleep00-21swapper/011:07:460
117978199329,7cyclictest26-21ksoftirqd/110:50:361
1179781993213,4cyclictest26-21ksoftirqd/111:08:101
117977899323,22cyclictest1344767-21apt-get11:55:120
179699310,4rtkit-daemon1795-21rtkit-daemon07:45:541
179699310,3rtkit-daemon1795-21rtkit-daemon12:01:431
179699310,3rtkit-daemon0-21swapper/111:53:450
179699310,3rtkit-daemon0-21swapper/110:10:280
179699310,3rtkit-daemon0-21swapper/107:17:450
179699310,3rtkit-daemon0-21swapper/011:47:361
179699310,3rtkit-daemon0-21swapper/011:35:341
117978199319,5cyclictest26-21ksoftirqd/109:39:061
117978199315,8cyclictest26-21ksoftirqd/110:35:121
117978199314,9cyclictest26-21ksoftirqd/109:15:241
1179781993112,4cyclictest26-21ksoftirqd/111:56:191
179699300,4rtkit-daemon1795-21rtkit-daemon11:04:470
179699300,3rtkit-daemon0-21swapper/109:08:020
12213042300,4sleep11221307-21unixbench_singl08:50:251
117978199308,9cyclictest26-21ksoftirqd/109:44:311
117978199302,9cyclictest26-21ksoftirqd/109:25:131
1179778993011,14cyclictest13-21ksoftirqd/012:25:120
179699290,3rtkit-daemon1795-21rtkit-daemon08:54:210
179699290,3rtkit-daemon0-21swapper/112:12:030
179699290,3rtkit-daemon0-21swapper/109:20:340
179699290,3rtkit-daemon0-21swapper/108:33:500
179699290,3rtkit-daemon0-21swapper/108:11:200
117978199297,8cyclictest141rcu_preempt10:15:321
1179781992913,4cyclictest26-21ksoftirqd/110:27:021
1179781992912,3cyclictest26-21ksoftirqd/107:11:141
179699280,3rtkit-daemon0-21swapper/110:21:360
1179781992812,2cyclictest141rcu_preempt08:38:531
117978199280,27cyclictest0-21swapper/109:20:291
179699270,4rtkit-daemon1179770-21cyclictest08:36:120
179699270,3rtkit-daemon1795-21rtkit-daemon07:50:290
179699270,3rtkit-daemon0-21swapper/109:52:440
179699270,1rtkit-daemon1795-21rtkit-daemon09:45:081
117978199277,8cyclictest26-21ksoftirqd/109:53:571
117978199276,12cyclictest26-21ksoftirqd/110:04:391
117978199275,10cyclictest26-21ksoftirqd/111:04:561
117978199274,13cyclictest26-21ksoftirqd/111:26:231
117978199272,7cyclictest0-21swapper/108:15:201
1179781992712,2cyclictest141rcu_preempt10:46:461
1179778992712,9cyclictest66950irq/132-enp2s010:00:120
1179778992711,3cyclictest13-21ksoftirqd/009:33:240
179699260,21rtkit-daemon1179770-21cyclictest12:20:040
179699260,21rtkit-daemon1179770-21cyclictest08:05:430
179699260,20rtkit-daemon1179770-21cyclictest09:46:260
117978199268,3cyclictest26-21ksoftirqd/108:40:171
117978199266,5cyclictest26-21ksoftirqd/112:33:101
117978199264,6cyclictest26-21ksoftirqd/110:20:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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