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2026-06-26 - 13:57
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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 Fri Jun 26, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19099692279237,28sleep10-21swapper/119:08:111
19097312243173,20sleep00-21swapper/019:05:350
179699690,3rtkit-daemon1795-21rtkit-daemon20:00:510
19487092650,4sleep00-21swapper/020:45:150
19487092650,4sleep00-21swapper/020:45:140
179699610,11rtkit-daemon1795-21rtkit-daemon22:12:311
179699600,4rtkit-daemon1795-21rtkit-daemon00:22:310
179699500,3rtkit-daemon1795-21rtkit-daemon21:03:461
179699500,3rtkit-daemon1795-21rtkit-daemon00:16:561
179699420,5rtkit-daemon2017641-21https22:30:010
179699410,5rtkit-daemon1999024-21apt-get22:05:061
179699370,6rtkit-daemon1950713-21df_inode20:50:140
179699370,3rtkit-daemon0-21swapper/121:12:171
179699360,5rtkit-daemon1958116-21diskmemload23:21:061
179699360,3rtkit-daemon0-21swapper/122:54:031
179699360,3rtkit-daemon0-21swapper/120:27:361
179699360,3rtkit-daemon0-21swapper/020:12:241
179699360,3rtkit-daemon0-21swapper/019:42:081
179699350,3rtkit-daemon1795-21rtkit-daemon23:58:511
179699350,3rtkit-daemon0-21swapper/123:26:590
179699350,3rtkit-daemon0-21swapper/121:52:541
179699350,3rtkit-daemon0-21swapper/100:38:140
179699350,3rtkit-daemon0-21swapper/023:11:281
179699350,3rtkit-daemon0-21swapper/021:35:391
191031399342,24cyclictest1917275-21apt-get19:25:111
179699340,5rtkit-daemon1958116-21diskmemload00:34:220
179699340,3rtkit-daemon1795-21rtkit-daemon22:30:081
179699340,3rtkit-daemon0-21swapper/123:58:580
179699340,3rtkit-daemon0-21swapper/121:56:091
179699340,3rtkit-daemon0-21swapper/021:46:151
179699340,3rtkit-daemon0-21swapper/021:30:461
179699340,2rtkit-daemon1795-21rtkit-daemon22:29:251
179699330,4rtkit-daemon1927029-21/usr/sbin/munin19:50:151
179699330,4rtkit-daemon1795-21rtkit-daemon21:36:200
179699330,4rtkit-daemon1795-21rtkit-daemon21:23:290
179699330,4rtkit-daemon1795-21rtkit-daemon20:07:371
179699330,3rtkit-daemon1795-21rtkit-daemon22:57:271
179699330,3rtkit-daemon1795-21rtkit-daemon21:26:301
179699330,3rtkit-daemon1795-21rtkit-daemon20:55:451
179699330,3rtkit-daemon1795-21rtkit-daemon00:12:021
179699330,3rtkit-daemon0-21swapper/119:39:140
179699330,3rtkit-daemon0-21swapper/100:01:501
179699330,3rtkit-daemon0-21swapper/023:36:091
179699330,3rtkit-daemon0-21swapper/022:43:271
179699330,3rtkit-daemon0-21swapper/022:01:591
179699330,3rtkit-daemon0-21swapper/021:44:451
179699330,3rtkit-daemon0-21swapper/021:22:211
179699330,3rtkit-daemon0-21swapper/000:26:261
179699330,3rtkit-daemon0-21swapper/000:22:371
191031399328,6cyclictest26-21ksoftirqd/123:00:021
179699320,3rtkit-daemon0-21swapper/122:15:350
179699320,3rtkit-daemon0-21swapper/119:24:230
179699320,3rtkit-daemon0-21swapper/119:12:470
191031399316,4cyclictest26-21ksoftirqd/123:25:241
1910313993110,3cyclictest26-21ksoftirqd/123:44:221
179699310,3rtkit-daemon1795-21rtkit-daemon23:36:500
179699310,3rtkit-daemon1795-21rtkit-daemon20:13:330
179699310,3rtkit-daemon0-21swapper/121:26:520
179699310,3rtkit-daemon0-21swapper/121:13:270
179699310,3rtkit-daemon0-21swapper/120:28:320
179699310,3rtkit-daemon0-21swapper/119:32:380
179699310,3rtkit-daemon0-21swapper/020:16:291
1910313993012,5cyclictest26-21ksoftirqd/100:30:021
179699300,4rtkit-daemon1795-21rtkit-daemon23:17:130
179699300,3rtkit-daemon1795-21rtkit-daemon22:44:300
179699300,3rtkit-daemon1795-21rtkit-daemon21:43:490
179699300,3rtkit-daemon0-21swapper/123:02:030
179699300,3rtkit-daemon0-21swapper/121:18:510
179699300,3rtkit-daemon0-21swapper/100:12:510
179699300,3rtkit-daemon0-21swapper/023:34:451
179699300,2rtkit-daemon1795-21rtkit-daemon20:04:361
1910313992925,3cyclictest2053547-21ssh23:19:371
179699290,4rtkit-daemon1795-21rtkit-daemon21:46:060
191031399289,4cyclictest26-21ksoftirqd/122:19:151
179699280,3rtkit-daemon0-21swapper/123:53:260
179699280,3rtkit-daemon0-21swapper/122:11:220
179699280,3rtkit-daemon0-21swapper/121:01:070
179699280,3rtkit-daemon0-21swapper/120:58:070
179699280,3rtkit-daemon0-21swapper/119:57:030
191031399278,3cyclictest26-21ksoftirqd/121:17:011
191031399277,4cyclictest26-21ksoftirqd/123:45:171
1910313992711,2cyclictest141rcu_preempt00:38:281
191031399270,6cyclictest0-21swapper/119:18:221
1910309992712,10cyclictest1980035-1kworker/u9:222:45:120
179699270,3rtkit-daemon1795-21rtkit-daemon23:44:310
179699270,3rtkit-daemon0-21swapper/120:40:450
179699270,3rtkit-daemon0-21swapper/120:38:520
179699270,3rtkit-daemon0-21swapper/120:18:040
191031399269,3cyclictest141rcu_preempt20:46:121
191031399269,3cyclictest141rcu_preempt20:46:121
191031399267,4cyclictest26-21ksoftirqd/123:51:181
191031399267,4cyclictest26-21ksoftirqd/120:35:221
191031399265,4cyclictest26-21ksoftirqd/122:49:441
1910313992611,2cyclictest141rcu_preempt22:36:351
179699260,21rtkit-daemon1910300-21cyclictest22:39:130
179699260,21rtkit-daemon1910300-21cyclictest19:28:550
191031399259,2cyclictest141rcu_preempt19:10:111
191031399258,4cyclictest26-21ksoftirqd/123:06:211
191031399255,3cyclictest26-21ksoftirqd/100:07:491
1910313992518,5cyclictest26-21ksoftirqd/121:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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