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2026-05-14 - 15:30
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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 376 highest latencies:
System rackcslot4.osadl.org (updated Thu May 14, 2026 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6570792263187,27sleep10-21swapper/107:08:541
6570112259184,25sleep00-21swapper/007:08:110
7020012850,5sleep00-21swapper/009:00:150
8085312660,9sleep013-21ksoftirqd/011:25:200
6700222620,4sleep0670007-21cron07:40:010
65735299623,10cyclictest804046-21apt-get11:20:131
8441042540,6chrt0-21swapper/012:15:000
179699540,4rtkit-daemon1795-21rtkit-daemon10:20:080
179699520,4rtkit-daemon1795-21rtkit-daemon11:29:241
179699510,4rtkit-daemon1795-21rtkit-daemon09:32:040
179699510,3rtkit-daemon1795-21rtkit-daemon10:27:030
8115602500,4sleep0811557-21ssh11:30:140
179699500,4rtkit-daemon1795-21rtkit-daemon09:16:170
179699500,3rtkit-daemon1795-21rtkit-daemon11:06:490
179699490,4rtkit-daemon1795-21rtkit-daemon08:13:381
179699460,7rtkit-daemon774330-21rm10:39:550
179699460,3rtkit-daemon1795-21rtkit-daemon08:55:420
65735299458,5cyclictest284-20systemd-journal08:55:001
179699420,5rtkit-daemon705621-21diskmemload09:22:280
65735299413,9cyclictest778256-21apt-get10:45:121
179699400,9rtkit-daemon764622-21grep10:25:251
179699400,3rtkit-daemon1795-21rtkit-daemon10:46:150
179699390,3rtkit-daemon0-21swapper/010:58:260
65735299374,8cyclictest859789-21apt-get12:35:141
179699370,4rtkit-daemon1795-21rtkit-daemon09:38:140
179699370,4rtkit-daemon1795-21rtkit-daemon09:21:281
179699370,3rtkit-daemon0-21swapper/112:28:210
179699370,3rtkit-daemon0-21swapper/011:19:380
179699360,3rtkit-daemon0-21swapper/009:59:430
179699350,4rtkit-daemon1795-21rtkit-daemon11:46:430
179699350,4rtkit-daemon1795-21rtkit-daemon08:25:361
179699350,3rtkit-daemon0-21swapper/107:20:100
179699350,3rtkit-daemon0-21swapper/011:10:161
179699350,3rtkit-daemon0-21swapper/010:13:130
179699350,3rtkit-daemon0-21swapper/010:07:401
179699350,3rtkit-daemon0-21swapper/010:02:500
179699350,3rtkit-daemon0-21swapper/009:18:321
179699340,4rtkit-daemon1795-21rtkit-daemon10:31:290
179699340,3rtkit-daemon1795-21rtkit-daemon12:25:161
179699340,3rtkit-daemon1795-21rtkit-daemon12:15:230
179699340,3rtkit-daemon1795-21rtkit-daemon11:05:221
179699340,3rtkit-daemon0-21swapper/007:32:090
179699330,4rtkit-daemon1795-21rtkit-daemon07:41:460
179699330,3rtkit-daemon0-21swapper/112:31:160
179699330,3rtkit-daemon0-21swapper/010:31:501
179699330,3rtkit-daemon0-21swapper/008:51:000
179699330,3rtkit-daemon0-21swapper/008:47:301
657352993230,1cyclictest702140-1kworker/1:0H09:05:061
179699320,3rtkit-daemon1795-21rtkit-daemon12:21:240
179699320,3rtkit-daemon1795-21rtkit-daemon07:18:010
179699320,3rtkit-daemon0-21swapper/009:14:291
179699310,3rtkit-daemon0-21swapper/012:01:361
179699310,3rtkit-daemon0-21swapper/009:03:591
179699300,4rtkit-daemon0-21swapper/011:58:211
179699300,3rtkit-daemon1795-21rtkit-daemon11:02:241
179699300,3rtkit-daemon1795-21rtkit-daemon10:08:580
179699300,3rtkit-daemon1795-21rtkit-daemon08:47:370
179699300,3rtkit-daemon0-21swapper/011:52:451
179699300,3rtkit-daemon0-21swapper/010:50:201
179699300,3rtkit-daemon0-21swapper/010:35:571
657352992911,5cyclictest806-21in:imuxsock07:19:591
657350992926,2cyclictest66950irq/132-enp2s010:40:570
179699290,3rtkit-daemon1795-21rtkit-daemon07:55:471
179699290,3rtkit-daemon0-21swapper/010:58:401
179699290,3rtkit-daemon0-21swapper/010:23:111
179699290,3rtkit-daemon0-21swapper/010:10:321
179699290,3rtkit-daemon0-21swapper/009:47:471
179699290,3rtkit-daemon0-21swapper/009:38:481
179699290,3rtkit-daemon0-21swapper/008:59:401
179699290,3rtkit-daemon0-21swapper/007:37:341
179699290,3rtkit-daemon0-21swapper/007:31:051
657352992817,6cyclictest855550-21apt-get12:30:071
657352992812,10cyclictest794908-1kworker/u9:211:15:121
179699280,3rtkit-daemon1795-21rtkit-daemon08:21:551
179699280,3rtkit-daemon0-21swapper/012:16:501
179699280,3rtkit-daemon0-21swapper/010:42:511
179699280,3rtkit-daemon0-21swapper/009:43:591
179699280,3rtkit-daemon0-21swapper/009:43:591
179699280,3rtkit-daemon0-21swapper/008:01:051
65735299270,6cyclictest0-21swapper/112:12:181
65735099276,14cyclictest815035-21apt-get11:35:120
657350992720,5cyclictest709376-21ssh09:14:410
657350992713,3cyclictest659601-21apt07:14:590
179699270,3rtkit-daemon1795-21rtkit-daemon09:50:161
179699270,3rtkit-daemon0-21swapper/008:42:071
179699270,3rtkit-daemon0-21swapper/008:07:111
657352992618,4cyclictest847733-21apt-get12:20:061
65735099266,13cyclictest690180-21apt-get08:30:120
657350992614,6cyclictest703875-21apt-get09:05:130
65735299251,6cyclictest0-21swapper/107:21:211
65735299250,7cyclictest671216-21/usr/sbin/munin07:40:181
657350992512,8cyclictest66950irq/132-enp2s010:15:120
65735099251,19cyclictest727171-21kworker/u8:109:45:140
657350992511,8cyclictest66950irq/132-enp2s011:00:140
8313532240,9sleep013-21ksoftirqd/011:55:560
657352992414,7cyclictest838169-21sensors_temp12:05:221
657352992410,3cyclictest141rcu_preempt11:50:001
65735299240,6cyclictest0-21swapper/107:13:521
65735099246,14cyclictest718048-21apt-get09:25:150
65735099241,11cyclictest824788-21kworker/u8:212:00:130
179699240,4rtkit-daemon1795-21rtkit-daemon08:25:510
179699240,3rtkit-daemon1795-21rtkit-daemon11:44:271
179699240,1rtkit-daemon1795-21rtkit-daemon11:31:061
179699240,1rtkit-daemon0-21swapper/108:19:450
65735299232,15cyclictest740490-21apt-get09:55:141
657352992311,9cyclictest672793-21df07:45:131
65735099234,11cyclictest837088-21apt-get12:05:100
65735099232,14cyclictest729318-21apt-get09:40:140
65735099232,14cyclictest729318-21apt-get09:40:140
65735099232,14cyclictest692136-21apt-get08:35:140
657350992310,10cyclictest782831-21ntp_states10:50:200
179699230,1rtkit-daemon1795-21rtkit-daemon09:52:020
179699230,1rtkit-daemon1795-21rtkit-daemon09:30:351
179699230,1rtkit-daemon1795-21rtkit-daemon08:43:190
6875652220,4sleep0687563-21head08:20:240
65735299224,5cyclictest26-21ksoftirqd/111:36:431
657352992213,5cyclictest1346530-21snapd09:25:121
65735299220,5cyclictest757475-21ssh10:15:411
65735099222,14cyclictest664308-21apt-get07:25:140
179699220,2rtkit-daemon1795-21rtkit-daemon07:54:490
179699220,15rtkit-daemon0-21swapper/008:05:580
65735299214,9cyclictest674544-21apt-get07:50:111
65735099212,13cyclictest818705-21apt-get11:40:140
65735099211,14cyclictest678463-21apt-get08:00:120
65735299207,2cyclictest141rcu_preempt08:35:001
657352992011,5cyclictest705621-21diskmemload10:02:071
65735099208,9cyclictest805607-21ssh11:20:460
65735099202,11cyclictest672593-21apt-get07:45:110
657350992012,4cyclictest705621-21diskmemload12:35:100
65735099200,16cyclictest796628-21apt-get11:10:110
179699200,12rtkit-daemon0-21swapper/107:28:231
65735299196,7cyclictest26-21ksoftirqd/108:15:111
65735099193,9cyclictest682358-21apt-get08:10:110
65735099192,9cyclictest676493-21apt-get07:55:110
65735099191,8cyclictest826904-21ntp_states11:50:210
657352991810,6cyclictest693818-21seq08:39:291
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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