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2026-05-15 - 04:50
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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 all highest latencies:
System rackcslot4.osadl.org (updated Fri May 15, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23043732270186,29sleep00-21swapper/019:05:220
23059682239198,27sleep10-21swapper/119:08:451
23850672600,9sleep126-21ksoftirqd/121:47:551
179699530,4rtkit-daemon1795-21rtkit-daemon23:40:081
179699530,4rtkit-daemon1795-21rtkit-daemon21:33:460
179699510,3rtkit-daemon1795-21rtkit-daemon21:42:500
179699510,3rtkit-daemon1795-21rtkit-daemon21:14:050
179699490,4rtkit-daemon1795-21rtkit-daemon22:04:591
179699470,4rtkit-daemon1795-21rtkit-daemon19:26:511
23392282460,6sleep02339230-21gpgv20:30:020
23210302460,5sleep02320860-21python319:45:010
25045752450,4sleep10-21swapper/100:29:131
179699410,5rtkit-daemon2422156-21seq22:38:100
230622099397,6cyclictest13-21ksoftirqd/022:50:000
179699390,3rtkit-daemon1795-21rtkit-daemon21:17:291
179699390,3rtkit-daemon0-21swapper/021:45:440
230622099387,6cyclictest13-21ksoftirqd/022:05:010
179699380,5rtkit-daemon2329033-21chrt20:04:561
179699380,3rtkit-daemon0-21swapper/119:35:191
230622099374,5cyclictest13-21ksoftirqd/021:25:010
2306220993724,3cyclictest13-21ksoftirqd/000:11:060
230622099371,5cyclictest13-21ksoftirqd/000:40:010
230622099371,4cyclictest13-21ksoftirqd/019:50:010
179699370,3rtkit-daemon0-21swapper/000:32:230
2306220993621,3cyclictest13-21ksoftirqd/000:23:090
179699360,4rtkit-daemon1795-21rtkit-daemon23:00:330
179699360,3rtkit-daemon1795-21rtkit-daemon22:50:120
179699360,3rtkit-daemon0-21swapper/023:26:080
179699360,3rtkit-daemon0-21swapper/020:19:080
230622099352,4cyclictest13-21ksoftirqd/022:15:010
230622099351,4cyclictest13-21ksoftirqd/000:00:000
230622099350,9cyclictest2318084-21sendmail_mailtr19:35:220
179699350,6rtkit-daemon13-21ksoftirqd/021:35:331
179699350,5rtkit-daemon2391138-21grep21:55:251
179699350,4rtkit-daemon1795-21rtkit-daemon22:09:490
179699350,3rtkit-daemon0-21swapper/121:53:021
179699350,3rtkit-daemon0-21swapper/121:53:011
179699350,3rtkit-daemon0-21swapper/023:46:521
179699350,3rtkit-daemon0-21swapper/023:23:410
179699350,12rtkit-daemon13-21ksoftirqd/022:57:431
230622099341,9cyclictest1-21systemd20:50:230
230622099340,8cyclictest2483893-21apt-get00:00:110
179699340,4rtkit-daemon2419615-21apt-get22:35:131
179699340,3rtkit-daemon1795-21rtkit-daemon21:35:540
179699340,3rtkit-daemon0-21swapper/121:03:540
179699340,3rtkit-daemon0-21swapper/100:08:020
179699330,3rtkit-daemon1795-21rtkit-daemon21:09:570
179699330,3rtkit-daemon1795-21rtkit-daemon20:00:440
179699330,3rtkit-daemon0-21swapper/123:43:460
179699330,3rtkit-daemon0-21swapper/022:53:341
179699330,3rtkit-daemon0-21swapper/021:43:591
230622099321,8cyclictest13-21ksoftirqd/022:20:110
2306220993211,3cyclictest13-21ksoftirqd/021:16:360
230622099320,9cyclictest13-21ksoftirqd/021:50:230
230622099320,9cyclictest13-21ksoftirqd/021:50:230
230622099320,8cyclictest2476533-21apt-get23:50:130
179699320,4rtkit-daemon1795-21rtkit-daemon19:33:451
179699320,3rtkit-daemon1795-21rtkit-daemon22:32:110
179699320,3rtkit-daemon1795-21rtkit-daemon20:06:200
179699320,3rtkit-daemon0-21swapper/119:27:450
179699320,3rtkit-daemon0-21swapper/023:04:311
179699320,3rtkit-daemon0-21swapper/022:47:581
179699320,3rtkit-daemon0-21swapper/022:24:191
179699320,3rtkit-daemon0-21swapper/021:24:491
179699320,3rtkit-daemon0-21swapper/020:49:581
179699320,3rtkit-daemon0-21swapper/020:40:351
179699320,3rtkit-daemon0-21swapper/020:19:501
179699320,3rtkit-daemon0-21swapper/019:11:081
179699320,3rtkit-daemon0-21swapper/000:20:361
230622099317,7cyclictest13-21ksoftirqd/023:49:070
230622099317,7cyclictest13-21ksoftirqd/021:59:530
230622099317,6cyclictest13-21ksoftirqd/023:09:310
230622099310,8cyclictest2423199-21apt-get22:40:120
179699310,4rtkit-daemon1795-21rtkit-daemon21:31:061
179699310,3rtkit-daemon1795-21rtkit-daemon21:28:020
179699310,3rtkit-daemon0-21swapper/023:55:461
179699310,3rtkit-daemon0-21swapper/023:15:501
179699310,3rtkit-daemon0-21swapper/020:25:061
179699310,2rtkit-daemon1795-21rtkit-daemon19:11:430
2306225993011,7cyclictest26-21ksoftirqd/100:00:271
230622099308,6cyclictest13-21ksoftirqd/000:28:060
230622099308,6cyclictest13-21ksoftirqd/000:15:090
230622099306,8cyclictest13-21ksoftirqd/020:35:230
230622099306,7cyclictest13-21ksoftirqd/023:30:240
230622099306,6cyclictest13-21ksoftirqd/022:15:200
2306220993027,2cyclictest66950irq/132-enp2s022:25:440
230622099302,2cyclictest141rcu_preempt23:15:000
230622099300,7cyclictest2434273-21apt-get22:55:130
179699300,3rtkit-daemon0-21swapper/119:21:410
179699300,3rtkit-daemon0-21swapper/023:05:411
179699300,3rtkit-daemon0-21swapper/022:44:331
179699300,3rtkit-daemon0-21swapper/021:14:271
2306225992914,9cyclictest2339438-21apt-get20:30:121
230622099296,7cyclictest13-21ksoftirqd/023:38:050
230622099295,8cyclictest13-21ksoftirqd/023:15:210
230622099290,4cyclictest13-21ksoftirqd/019:30:220
230622099290,3cyclictest13-21ksoftirqd/020:25:210
179699290,3rtkit-daemon0-21swapper/023:24:011
2306225992813,9cyclictest2490852-21apt-get00:10:131
2306225992813,9cyclictest2385771-1kworker/u9:222:10:131
230622599280,7cyclictest251rcuc/121:25:141
230622099284,8cyclictest13-21ksoftirqd/019:55:170
179699280,3rtkit-daemon1795-21rtkit-daemon23:50:501
179699280,3rtkit-daemon0-21swapper/022:07:521
179699280,3rtkit-daemon0-21swapper/019:59:481
230622599270,6cyclictest0-21swapper/122:29:481
230622099276,7cyclictest13-21ksoftirqd/020:46:240
179699270,3rtkit-daemon0-21swapper/120:58:460
179699270,3rtkit-daemon0-21swapper/000:36:191
2306225992610,5cyclictest26-21ksoftirqd/122:35:011
230622599260,7cyclictest0-21swapper/120:22:211
230622099266,6cyclictest13-21ksoftirqd/020:10:090
230622099264,7cyclictest13-21ksoftirqd/019:15:170
230622099264,2cyclictest141rcu_preempt19:50:200
179699260,3rtkit-daemon0-21swapper/019:20:351
179699260,21rtkit-daemon2306211-21cyclictest22:19:461
179699260,21rtkit-daemon2306211-21cyclictest21:08:251
230622599258,10cyclictest2456358-21apt-get23:25:141
230622599251,19cyclictest2487592-21apt-get00:05:161
230622099252,8cyclictest13-21ksoftirqd/020:40:220
230622599242,14cyclictest2323387-21apt-get19:50:141
230622599240,7cyclictest2343138-21munin-run20:39:591
230622099240,7cyclictest2335112-21/usr/sbin/munin20:20:090
179699240,19rtkit-daemon1795-21rtkit-daemon00:33:211
179699230,4rtkit-daemon1795-21rtkit-daemon20:56:281
179699230,1rtkit-daemon1795-21rtkit-daemon19:48:511
179699230,1rtkit-daemon1795-21rtkit-daemon19:41:361
179699230,16rtkit-daemon2462881-21ssh23:33:011
230622599222,14cyclictest2329259-21apt-get20:05:141
230622599221,12cyclictest2445260-21apt-get23:10:131
230622599219,8cyclictest2455369-1kworker/u9:123:35:131
230622599213,11cyclictest2351587-21apt-get21:00:141
230622599210,4cyclictest2308699-21gltestperf19:15:031
230622599203,10cyclictest2494088-21apt-get00:15:141
230622599201,13cyclictest2347663-21apt-get20:50:121
230622599181,15cyclictest2332031-21grep20:10:211
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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