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2026-09-14 - 23:13
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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 highest latencies:
System rackcslot4.osadl.org (updated Mon Sep 14, 2026 12:44:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
522072322281,27sleep10-21swapper/107:09:341
518862297256,27sleep00-21swapper/007:06:080
1262002600,5sleep10-21swapper/109:43:061
136599580,4rtkit-daemon1364-21rtkit-daemon11:16:050
136599510,4rtkit-daemon1364-21rtkit-daemon10:22:380
136599510,4rtkit-daemon1364-21rtkit-daemon09:29:211
1054172510,32sleep0105405-21apt-get09:15:130
136599500,4rtkit-daemon1364-21rtkit-daemon10:27:510
136599500,3rtkit-daemon1364-21rtkit-daemon11:40:071
2228742490,5sleep00-21swapper/011:59:210
136599490,4rtkit-daemon1364-21rtkit-daemon08:30:331
1747852480,6sleep10-21swapper/110:50:231
136599480,4rtkit-daemon1364-21rtkit-daemon08:40:531
136599470,11rtkit-daemon1364-21rtkit-daemon11:25:210
136599460,4rtkit-daemon1364-21rtkit-daemon08:11:481
136599450,4rtkit-daemon1364-21rtkit-daemon07:29:400
136599410,6rtkit-daemon71102-21python307:55:001
136599410,3rtkit-daemon1364-21rtkit-daemon08:23:410
5240999408,10cyclictest26-21ksoftirqd/110:45:131
2051832400,2sleep0205188-21ssh11:33:520
1019952400,2sleep00-21swapper/009:10:200
136599380,6rtkit-daemon86676-21sed08:30:240
5240699370,8cyclictest59292-21latency_hist07:25:010
136599360,3rtkit-daemon0-21swapper/109:03:361
5240999356,9cyclictest26-21ksoftirqd/108:35:211
136599350,3rtkit-daemon0-21swapper/109:39:331
136599350,3rtkit-daemon0-21swapper/010:44:141
136599350,3rtkit-daemon0-21swapper/010:44:141
2528312340,4sleep10-21swapper/112:40:011
136599340,4rtkit-daemon0-21swapper/108:55:031
136599340,4rtkit-daemon0-21swapper/108:55:021
136599340,4rtkit-daemon0-21swapper/108:45:110
136599340,3rtkit-daemon0-21swapper/110:05:361
136599340,3rtkit-daemon0-21swapper/109:50:441
136599340,3rtkit-daemon0-21swapper/011:32:521
5240999333,5cyclictest26-21ksoftirqd/110:20:001
5240999331,10cyclictest26-21ksoftirqd/110:30:121
136599330,4rtkit-daemon1364-21rtkit-daemon12:25:531
136599330,4rtkit-daemon1364-21rtkit-daemon10:42:580
136599330,4rtkit-daemon1364-21rtkit-daemon10:42:580
136599330,4rtkit-daemon1364-21rtkit-daemon09:13:021
136599330,3rtkit-daemon0-21swapper/111:40:300
136599330,3rtkit-daemon0-21swapper/108:43:240
136599330,3rtkit-daemon0-21swapper/010:48:280
5240999328,9cyclictest26-21ksoftirqd/109:30:231
5240999327,9cyclictest26-21ksoftirqd/111:20:081
5240999320,9cyclictest26-21ksoftirqd/112:05:241
5240999320,9cyclictest177901-21ssh10:55:191
5240999320,6cyclictest0-21swapper/111:51:351
5240999320,4cyclictest26-21ksoftirqd/111:59:591
52406993215,10cyclictest230978-21apt-get12:10:130
5240699321,3cyclictest141rcu_preempt10:05:000
5240699320,8cyclictest112501-21sh09:25:000
136599320,3rtkit-daemon1364-21rtkit-daemon12:23:241
136599320,3rtkit-daemon1364-21rtkit-daemon09:05:231
136599320,3rtkit-daemon1364-21rtkit-daemon08:17:401
136599320,3rtkit-daemon0-21swapper/112:29:430
136599320,3rtkit-daemon0-21swapper/112:17:121
136599320,3rtkit-daemon0-21swapper/109:03:160
136599320,3rtkit-daemon0-21swapper/108:55:090
136599320,3rtkit-daemon0-21swapper/108:55:090
136599320,3rtkit-daemon0-21swapper/108:26:220
5240999318,8cyclictest26-21ksoftirqd/111:10:211
5240999311,9cyclictest198692-21apt-get11:25:121
5240999310,10cyclictest813-21snmpd10:28:161
136599310,4rtkit-daemon0-21swapper/109:53:540
136599310,4rtkit-daemon0-21swapper/011:08:110
136599310,3rtkit-daemon0-21swapper/110:09:290
136599310,3rtkit-daemon0-21swapper/109:59:310
136599310,3rtkit-daemon0-21swapper/108:52:400
136599310,3rtkit-daemon0-21swapper/108:36:310
136599310,3rtkit-daemon0-21swapper/107:45:410
136599310,3rtkit-daemon0-21swapper/107:11:270
136599310,3rtkit-daemon0-21swapper/107:11:260
136599310,3rtkit-daemon0-21swapper/011:09:431
136599310,3rtkit-daemon0-21swapper/007:36:561
136599310,3rtkit-daemon0-21swapper/007:16:341
5240999309,10cyclictest26-21ksoftirqd/109:20:221
5240999308,9cyclictest26-21ksoftirqd/110:10:181
5240999308,9cyclictest26-21ksoftirqd/108:25:241
5240999308,10cyclictest26-21ksoftirqd/111:01:421
5240999308,10cyclictest26-21ksoftirqd/109:16:281
5240999306,8cyclictest26-21ksoftirqd/110:03:041
5240999305,8cyclictest26-21ksoftirqd/109:55:431
136599300,4rtkit-daemon1364-21rtkit-daemon11:17:251
136599300,4rtkit-daemon115717-21ssh09:29:270
136599300,4rtkit-daemon0-21swapper/110:15:540
136599300,4rtkit-daemon0-21swapper/109:46:510
136599300,4rtkit-daemon0-21swapper/107:41:560
136599300,3rtkit-daemon0-21swapper/111:47:410
136599300,3rtkit-daemon0-21swapper/109:41:500
136599300,3rtkit-daemon0-21swapper/109:37:000
136599300,3rtkit-daemon0-21swapper/109:33:150
136599300,3rtkit-daemon0-21swapper/108:17:240
136599300,3rtkit-daemon0-21swapper/010:37:141
136599300,3rtkit-daemon0-21swapper/010:22:441
5240999297,9cyclictest26-21ksoftirqd/112:13:341
5240999297,9cyclictest26-21ksoftirqd/109:48:581
5240999296,8cyclictest26-21ksoftirqd/112:32:041
5240999296,10cyclictest73264-21chrt07:58:151
5240999295,8cyclictest26-21ksoftirqd/111:45:551
5240999291,9cyclictest26-21ksoftirqd/112:00:071
52406992911,12cyclictest180806-21apt-get11:00:140
136599290,4rtkit-daemon241210-21ssh12:23:520
136599290,4rtkit-daemon146820-21ssh10:11:100
136599290,4rtkit-daemon1364-21rtkit-daemon11:12:370
136599290,4rtkit-daemon1364-21rtkit-daemon08:49:031
136599290,4rtkit-daemon1364-21rtkit-daemon07:41:281
136599290,3rtkit-daemon0-21swapper/112:36:580
136599290,3rtkit-daemon0-21swapper/112:33:450
136599290,3rtkit-daemon0-21swapper/112:18:050
136599290,3rtkit-daemon0-21swapper/112:08:500
136599290,3rtkit-daemon0-21swapper/112:00:400
136599290,3rtkit-daemon0-21swapper/111:53:290
136599290,3rtkit-daemon0-21swapper/109:05:300
136599290,3rtkit-daemon0-21swapper/108:02:460
5240999287,9cyclictest63030-21taskset07:33:551
5240999287,9cyclictest26-21ksoftirqd/108:05:221
5240999286,10cyclictest26-21ksoftirqd/111:36:241
5240999280,9cyclictest60167-21/usr/sbin/munin07:25:211
136599280,3rtkit-daemon0-21swapper/108:05:470
136599280,3rtkit-daemon0-21swapper/107:53:580
5240999278,9cyclictest58923-21taskset07:21:581
5240999277,9cyclictest26-21ksoftirqd/108:00:231
5240999276,6cyclictest26-21ksoftirqd/107:45:191
5240999275,8cyclictest26-21ksoftirqd/108:23:431
5240999270,8cyclictest26-21ksoftirqd/107:10:251
5240999270,8cyclictest26-21ksoftirqd/107:10:241
52406992711,9cyclictest159385-21apt-get10:30:120
5240999267,9cyclictest94730-21taskset08:51:221
5240699261,6cyclictest0-21swapper/010:53:130
136599260,3rtkit-daemon1364-21rtkit-daemon07:15:300
136599250,6rtkit-daemon141rcu_preempt11:20:350
136599250,1rtkit-daemon1364-21rtkit-daemon11:37:480
5240699242,13cyclictest63350-21apt-get07:35:160
5240699240,6cyclictest0-21swapper/007:56:040
5240699222,14cyclictest77588-21apt-get08:10:120
5240699211,7cyclictest164657-21ssh10:36:070
136599210,13rtkit-daemon0-21swapper/010:57:290
5240699200,17cyclictest61495-21cpuspeed_turbos07:30:140
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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