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2026-04-09 - 22:40
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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 Thu Apr 09, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30645382308274,19sleep00-21swapper/007:05:310
30648412243201,28sleep10-21swapper/107:07:011
179699600,4rtkit-daemon1795-21rtkit-daemon12:25:421
179699540,4rtkit-daemon1795-21rtkit-daemon10:53:410
179699500,3rtkit-daemon1795-21rtkit-daemon11:00:211
179699500,3rtkit-daemon1795-21rtkit-daemon09:28:120
179699500,3rtkit-daemon1795-21rtkit-daemon07:41:120
31147952440,5chrt3114794-21ntp_states09:10:221
179699440,3rtkit-daemon1795-21rtkit-daemon11:16:010
179699420,3rtkit-daemon1795-21rtkit-daemon07:37:390
306523899395,7cyclictest3113693-21diskmemload11:30:221
179699390,3rtkit-daemon0-21swapper/109:50:191
32309782380,4sleep13230977-21gdbus11:55:031
306523899381,9cyclictest3077550-21sh07:40:001
306523899380,7cyclictest3135966-21latency_hist09:40:001
306523399385,7cyclictest13-21ksoftirqd/011:35:000
179699380,3rtkit-daemon0-21swapper/011:42:320
306523899375,8cyclictest3220351-21apt-get11:40:131
306523899374,7cyclictest3117878-21apt-get09:15:131
306523899372,12cyclictest3113693-21diskmemload10:20:111
306523899370,7cyclictest26-21ksoftirqd/108:40:011
179699370,6rtkit-daemon3111790-21latency_hist09:05:010
179699370,5rtkit-daemon3086186-21memory08:00:190
179699370,4rtkit-daemon0-21swapper/108:32:351
179699370,3rtkit-daemon0-21swapper/108:35:330
306523899360,7cyclictest3089421-21latency_hist08:10:001
179699360,3rtkit-daemon0-21swapper/010:49:120
306523899352,9cyclictest3092449-21/usr/sbin/munin08:15:231
179699350,3rtkit-daemon0-21swapper/108:33:170
306523899343,3cyclictest26-21ksoftirqd/110:05:011
306523899341,9cyclictest3242630-21/usr/sbin/munin12:10:211
306523899341,7cyclictest3113693-21diskmemload10:55:141
306523899340,8cyclictest3067427-21munin-node07:15:011
306523899340,8cyclictest26-21ksoftirqd/108:50:241
306523899340,8cyclictest26-21ksoftirqd/108:50:001
179699340,4rtkit-daemon1795-21rtkit-daemon09:55:331
306523899333,8cyclictest3209877-21apt-get11:25:131
306523899332,11cyclictest3124826-21python309:25:011
306523899331,8cyclictest26-21ksoftirqd/110:55:011
306523899331,7cyclictest3109414-21python309:00:011
306523899330,8cyclictest26-21ksoftirqd/110:40:011
306523899330,8cyclictest26-21ksoftirqd/107:55:301
3065233993328,3cyclictest893-21snmpd07:50:170
306523399330,6cyclictest161rcuc/012:40:010
179699330,4rtkit-daemon1795-21rtkit-daemon08:22:311
306523899320,8cyclictest26-21ksoftirqd/107:35:001
179699320,3rtkit-daemon0-21swapper/108:07:400
179699320,3rtkit-daemon0-21swapper/107:27:530
179699320,3rtkit-daemon0-21swapper/011:15:481
179699320,3rtkit-daemon0-21swapper/010:19:341
179699320,3rtkit-daemon0-21swapper/007:42:091
179699320,3rtkit-daemon0-21swapper/007:10:121
306523899315,7cyclictest26-21ksoftirqd/109:30:161
306523899313,6cyclictest3206408-21apt-get11:20:121
306523899312,9cyclictest3229572-21ssh11:52:261
306523899312,9cyclictest3182610-21/usr/sbin/munin10:45:231
306523899312,4cyclictest26-21ksoftirqd/108:40:221
306523899311,7cyclictest26-21ksoftirqd/112:20:011
306523899311,10cyclictest3178017-21ssh10:40:051
306523899310,9cyclictest3171060-21apt-get10:30:121
306523899310,8cyclictest3136641-21if_enp2s009:40:171
3065233993128,2cyclictest66950irq/132-enp2s011:38:270
3065233993128,2cyclictest66950irq/132-enp2s011:38:260
179699310,4rtkit-daemon1795-21rtkit-daemon08:26:510
179699310,3rtkit-daemon1795-21rtkit-daemon07:16:430
179699310,3rtkit-daemon0-21swapper/112:31:180
179699310,3rtkit-daemon0-21swapper/108:55:350
306523899307,8cyclictest26-21ksoftirqd/110:10:231
306523899306,9cyclictest26-21ksoftirqd/111:45:231
306523899306,8cyclictest26-21ksoftirqd/112:30:181
306523899304,6cyclictest30899942sleep108:10:181
306523899301,10cyclictest3113693-21diskmemload10:25:141
306523899300,8cyclictest3218026-21/usr/sbin/munin11:35:241
306523899300,8cyclictest3218026-21/usr/sbin/munin11:35:231
306523899300,8cyclictest3195431-21apt-get11:05:141
306523899300,7cyclictest3111939-21apt-get09:05:131
179699300,5rtkit-daemon3071472-21runrttasks07:23:251
179699300,3rtkit-daemon0-21swapper/110:59:210
179699300,3rtkit-daemon0-21swapper/109:32:200
179699300,3rtkit-daemon0-21swapper/009:26:001
306523899297,7cyclictest26-21ksoftirqd/109:00:021
306523899296,8cyclictest26-21ksoftirqd/112:00:211
306523899295,9cyclictest26-21ksoftirqd/112:05:131
306523899294,7cyclictest3113693-21diskmemload11:10:111
306523899291,8cyclictest26-21ksoftirqd/112:35:221
306523899290,8cyclictest26-21ksoftirqd/110:05:141
3065233992926,2cyclictest66950irq/132-enp2s009:52:410
306523399290,3cyclictest13-21ksoftirqd/009:55:170
179699290,3rtkit-daemon1795-21rtkit-daemon10:19:060
179699290,3rtkit-daemon1795-21rtkit-daemon08:44:320
179699290,3rtkit-daemon1795-21rtkit-daemon07:46:200
179699290,3rtkit-daemon0-21swapper/109:42:200
306523899286,8cyclictest26-21ksoftirqd/112:20:171
306523899284,7cyclictest26-21ksoftirqd/107:45:221
3065233992811,5cyclictest13-21ksoftirqd/010:00:340
179699280,4rtkit-daemon0-21swapper/111:57:590
179699280,3rtkit-daemon1795-21rtkit-daemon10:26:040
179699280,3rtkit-daemon0-21swapper/108:20:100
179699280,3rtkit-daemon0-21swapper/108:19:280
179699280,20rtkit-daemon3228997-21ssh11:50:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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