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2026-03-22 - 18:05
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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 Sun Mar 22, 2026 12:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30055162268190,28sleep00-21swapper/007:06:520
30057032262186,61sleep10-21swapper/107:08:511
30323412460,4sleep10-21swapper/108:15:161
179699460,3rtkit-daemon0-21swapper/012:05:020
31424072430,2sleep13053855-21diskmemload11:12:121
179699430,6rtkit-daemon3171181-21ssh11:54:141
179699370,7rtkit-daemon3069013-21apt-get09:30:120
3005932993223,7cyclictest3101618-21diskstats10:15:161
3005928993023,5cyclictest3176551-21sed12:00:250
3005928993013,11cyclictest3026281-21apt-get08:00:140
179699300,6rtkit-daemon3014686-21df_inode07:30:151
30323342280,4sleep03032330-21df_inode08:15:150
179699280,3rtkit-daemon0-21swapper/108:07:131
179699280,21rtkit-daemon0-21swapper/011:54:410
300593299271,7cyclictest3143921-21cpu11:15:131
3005932992711,10cyclictest3200672-21apt-get12:35:141
3005928992724,2cyclictest3020185-1kworker/0:0H08:30:370
3005928992714,7cyclictest66950irq/132-enp2s010:30:120
179699270,7rtkit-daemon3060410-21rm09:17:550
179699270,5rtkit-daemon3048675-21cat08:55:181
3005932992622,2cyclictest31346782sleep111:00:461
300592899269,10cyclictest3028228-21apt-get08:05:140
3005928992614,7cyclictest66950irq/132-enp2s009:35:130
3005928992614,6cyclictest66950irq/132-enp2s011:45:120
3005928992613,7cyclictest3083439-21apt-get09:50:140
179699260,4rtkit-daemon3127820-21ssh10:51:151
300593299254,18cyclictest3068378-21python309:30:011
300593299253,8cyclictest3090157-21python310:00:031
3005932992522,2cyclictest3155955-21kworker/1:011:40:211
300593299251,5cyclictest3178804-21python312:05:011
300593299251,19cyclictest3147295-21apt-get11:20:121
300593299251,10cyclictest141rcu_preempt09:45:221
3005928992522,2cyclictest66950irq/132-enp2s010:21:350
3005928992520,3cyclictest3020185-1kworker/0:0H08:00:000
3005928992512,7cyclictest66950irq/132-enp2s010:25:120
300592899250,4cyclictest3185931-21munin-run12:14:590
179699250,3rtkit-daemon0-21swapper/010:50:160
179699250,3rtkit-daemon0-21swapper/009:47:440
300593299249,10cyclictest3089008-1kworker/u9:010:05:131
300593299244,3cyclictest3053855-21diskmemload12:15:101
300593299243,12cyclictest3105034-21apt-get10:20:141
300593299242,14cyclictest3189790-21apt-get12:20:131
300592899243,14cyclictest3012529-21apt-get07:25:150
300592899242,15cyclictest3129719-21apt-get10:55:130
300592899242,15cyclictest3039746-21apt-get08:35:070
3005928992421,2cyclictest66950irq/132-enp2s012:27:020
179699240,3rtkit-daemon0-21swapper/012:37:560
300593299239,9cyclictest3128013-1kworker/u9:011:35:131
300593299235,3cyclictest141rcu_preempt09:45:011
3005932992316,4cyclictest3008416-21grep07:15:021
300593299230,4cyclictest3140070-21ls11:10:011
300592899233,12cyclictest3018461-21apt-get07:40:120
300592899232,15cyclictest3197077-21apt-get12:30:140
300592899232,14cyclictest3014478-21apt-get07:30:130
300592899232,14cyclictest3010577-21apt-get07:20:130
3005928992311,7cyclictest66950irq/132-enp2s011:10:140
3005928992311,7cyclictest3122632-21apt-get10:45:150
179699230,3rtkit-daemon1795-21rtkit-daemon07:52:370
179699230,3rtkit-daemon0-21swapper/110:56:531
179699230,3rtkit-daemon0-21swapper/108:53:091
179699230,3rtkit-daemon0-21swapper/108:40:231
179699230,3rtkit-daemon0-21swapper/108:31:271
179699230,3rtkit-daemon0-21swapper/107:20:391
179699230,3rtkit-daemon0-21swapper/011:41:520
179699230,3rtkit-daemon0-21swapper/011:35:150
179699230,3rtkit-daemon0-21swapper/010:43:430
179699230,3rtkit-daemon0-21swapper/010:10:010
179699230,3rtkit-daemon0-21swapper/009:25:170
300593299229,8cyclictest3163527-1kworker/u9:111:55:131
300593299228,9cyclictest3163527-1kworker/u9:112:05:141
300593299223,17cyclictest0-21swapper/112:32:551
300593299220,5cyclictest3098882-21ls10:10:231
300592899224,3cyclictest141rcu_preempt08:20:160
300592899223,11cyclictest3086931-21apt-get09:55:120
3005928992215,5cyclictest763-21dbus-daemon09:00:010
3005928992215,5cyclictest3143877-21/usr/sbin/munin11:15:150
3005928992215,5cyclictest3138442-21sh11:06:250
3005928992211,6cyclictest66950irq/132-enp2s011:00:120
300592899221,16cyclictest66950irq/132-enp2s010:35:130
300592899221,11cyclictest3053855-21diskmemload09:22:590
3005928992210,7cyclictest66950irq/132-enp2s011:30:130
3005928992210,7cyclictest66950irq/132-enp2s010:00:110
179699220,3rtkit-daemon0-21swapper/108:20:471
179699220,3rtkit-daemon0-21swapper/107:37:221
179699220,3rtkit-daemon0-21swapper/107:14:201
179699220,3rtkit-daemon0-21swapper/010:17:040
179699220,14rtkit-daemon0-21swapper/009:14:420
300593299217,9cyclictest3097122-1kworker/u9:110:40:121
300593299213,10cyclictest3030178-21apt-get08:10:101
300593299212,17cyclictest3165241-21tune2fs11:45:161
300593299212,17cyclictest3151172-21tune2fs11:25:181
3005932992116,3cyclictest3050459-21fschecks_time09:00:161
3005932992114,5cyclictest3090357-21latency_hist10:00:011
3005932992112,7cyclictest3084091-21memory09:50:191
3005932992111,8cyclictest3184447-21seq12:11:191
3005932992111,7cyclictest3052833-21ntpq09:05:231
300593299211,14cyclictest3061612-21apt-get09:20:101
300593299210,4cyclictest3037821-21perf-exec08:30:001
300593299210,3cyclictest3195116-21ssh12:25:421
300593299210,19cyclictest3040244-21apt-config08:35:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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