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2025-12-11 - 19:36
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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 Dec 11, 2025 12:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
61163723510,9sleep0611501-21/usr/sbin/munin07:05:160
6130932262191,55sleep10-21swapper/107:08:211
8100682680,4sleep1809288-21/usr/sbin/munin12:25:231
125899630,4rtkit-daemon1257-21rtkit-daemon10:30:390
125899620,4rtkit-daemon1257-21rtkit-daemon09:38:101
125899560,4rtkit-daemon1257-21rtkit-daemon11:36:391
7476462540,3sleep10-21swapper/111:03:481
8160942520,6sleep1816087-21turbostat12:35:011
125899520,4rtkit-daemon1257-21rtkit-daemon12:19:341
125899510,4rtkit-daemon1257-21rtkit-daemon07:49:200
125899500,4rtkit-daemon1257-21rtkit-daemon08:18:470
6148112470,4sleep10-21swapper/107:10:251
125899400,6rtkit-daemon794416-21ssh12:05:031
125899400,6rtkit-daemon651960-21cron08:45:000
125899380,4rtkit-daemon0-21swapper/110:37:091
125899380,3rtkit-daemon0-21swapper/011:21:020
125899370,6rtkit-daemon1257-21rtkit-daemon07:20:121
125899370,3rtkit-daemon0-21swapper/008:30:390
61337899365,9cyclictest26-21ksoftirqd/111:15:361
125899360,4rtkit-daemon1257-21rtkit-daemon10:21:511
125899360,3rtkit-daemon0-21swapper/108:59:530
125899360,3rtkit-daemon0-21swapper/009:29:370
125899360,3rtkit-daemon0-21swapper/008:04:180
125899350,4rtkit-daemon1257-21rtkit-daemon10:10:551
125899350,3rtkit-daemon0-21swapper/108:44:311
125899350,3rtkit-daemon0-21swapper/011:26:470
125899350,3rtkit-daemon0-21swapper/009:46:400
613378993410,9cyclictest141rcu_preempt12:14:241
125899340,4rtkit-daemon1257-21rtkit-daemon10:33:351
125899340,4rtkit-daemon1257-21rtkit-daemon09:20:321
125899340,4rtkit-daemon1257-21rtkit-daemon09:08:030
125899340,4rtkit-daemon1257-21rtkit-daemon08:06:530
125899340,3rtkit-daemon1257-21rtkit-daemon10:44:401
125899340,3rtkit-daemon0-21swapper/111:10:230
613378993319,4cyclictest26-21ksoftirqd/108:15:011
613378993319,4cyclictest26-21ksoftirqd/108:15:001
61337899330,8cyclictest661747-21diskmemload09:15:001
125899330,4rtkit-daemon1257-21rtkit-daemon10:08:181
125899330,4rtkit-daemon1257-21rtkit-daemon08:36:351
125899330,3rtkit-daemon0-21swapper/108:47:190
125899330,3rtkit-daemon0-21swapper/008:06:111
125899330,28rtkit-daemon755826-21python311:15:011
61337899323,9cyclictest26-21ksoftirqd/109:50:201
61337899322,2cyclictest141rcu_preempt12:05:011
613378993211,4cyclictest26-21ksoftirqd/111:59:301
61337899319,4cyclictest26-21ksoftirqd/110:15:211
61337899315,9cyclictest26-21ksoftirqd/112:20:181
61337899313,9cyclictest26-21ksoftirqd/107:40:261
613378993113,11cyclictest656079-21apt-get08:55:171
613378993112,4cyclictest26-21ksoftirqd/111:21:371
613378993111,4cyclictest26-21ksoftirqd/110:55:351
613378993110,4cyclictest26-21ksoftirqd/107:25:521
61337899310,9cyclictest634049-40apt-check08:00:141
61337899310,8cyclictest26-21ksoftirqd/109:15:231
125899310,3rtkit-daemon0-21swapper/110:25:290
125899310,3rtkit-daemon0-21swapper/110:08:390
125899310,3rtkit-daemon0-21swapper/010:02:081
125899310,3rtkit-daemon0-21swapper/009:49:491
125899310,3rtkit-daemon0-21swapper/009:26:001
61337899309,4cyclictest26-21ksoftirqd/107:32:401
613378993012,4cyclictest26-21ksoftirqd/110:25:211
613378993011,4cyclictest26-21ksoftirqd/111:45:461
613378993011,3cyclictest26-21ksoftirqd/111:07:531
613378993011,2cyclictest141rcu_preempt11:50:341
613378993010,3cyclictest26-21ksoftirqd/111:40:171
61337899300,10cyclictest26-21ksoftirqd/111:30:501
613375993027,2cyclictest63750irq/132-enp2s009:44:580
125899300,5rtkit-daemon26-21ksoftirqd/111:41:340
125899300,3rtkit-daemon0-21swapper/111:04:030
125899300,3rtkit-daemon0-21swapper/108:37:240
61337899297,3cyclictest26-21ksoftirqd/111:25:181
613378992927,1cyclictest0-21swapper/108:16:021
61337899291,10cyclictest26-21ksoftirqd/110:50:431
613378992910,3cyclictest26-21ksoftirqd/108:48:501
613375992926,2cyclictest63750irq/132-enp2s012:35:590
613375992926,2cyclictest63750irq/132-enp2s011:05:160
613375992925,3cyclictest63750irq/132-enp2s009:19:420
125899290,3rtkit-daemon0-21swapper/112:19:410
125899290,3rtkit-daemon0-21swapper/110:59:440
125899290,3rtkit-daemon0-21swapper/109:22:150
125899290,3rtkit-daemon0-21swapper/107:23:550
125899290,3rtkit-daemon0-21swapper/009:58:511
125899290,3rtkit-daemon0-21swapper/009:05:561
125899290,3rtkit-daemon0-21swapper/008:23:201
125899290,3rtkit-daemon0-21swapper/007:57:091
125899290,3rtkit-daemon0-21swapper/007:51:341
61337899282,2cyclictest141rcu_preempt09:42:301
613378992810,4cyclictest26-21ksoftirqd/109:32:141
613375992822,4cyclictest854-21thermald10:22:110
125899280,4rtkit-daemon1257-21rtkit-daemon11:16:390
125899280,3rtkit-daemon0-21swapper/007:48:051
613378992712,3cyclictest26-21ksoftirqd/108:53:091
125899270,3rtkit-daemon0-21swapper/110:42:020
61337899267,2cyclictest141rcu_preempt12:35:261
613378992611,4cyclictest26-21ksoftirqd/107:17:421
613378992610,3cyclictest26-21ksoftirqd/110:46:151
61337899260,6cyclictest0-21swapper/108:32:081
613375992612,9cyclictest625903-21apt-get07:40:110
125899260,3rtkit-daemon0-21swapper/112:22:030
6963732250,5sleep0696374-21ls09:55:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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