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2026-04-17 - 20:31
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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 Fri Apr 17, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40578242262220,28sleep10-21swapper/107:06:311
40578772241197,28sleep00-21swapper/007:07:070
179699550,4rtkit-daemon1795-21rtkit-daemon07:22:370
179699540,4rtkit-daemon1795-21rtkit-daemon10:25:390
179699530,4rtkit-daemon1795-21rtkit-daemon11:30:440
179699530,4rtkit-daemon1795-21rtkit-daemon11:06:021
179699510,4rtkit-daemon1795-21rtkit-daemon11:50:541
179699500,4rtkit-daemon1795-21rtkit-daemon09:12:530
179699500,3rtkit-daemon1795-21rtkit-daemon10:55:041
40823172490,1chrt4082318-21/usr/sbin/munin08:05:250
179699480,4rtkit-daemon1795-21rtkit-daemon08:32:300
179699470,3rtkit-daemon1795-21rtkit-daemon09:21:480
602972460,4sleep00-21swapper/012:38:040
179699460,3rtkit-daemon1795-21rtkit-daemon07:33:240
179699450,3rtkit-daemon1795-21rtkit-daemon11:13:490
179699420,5rtkit-daemon4106483-21diskmemload11:19:041
179699420,5rtkit-daemon4106483-21diskmemload11:19:031
405827099409,5cyclictest13-21ksoftirqd/009:35:000
179699380,5rtkit-daemon41575-21unixbench-2d12:10:231
183932370,4sleep10-21swapper/111:39:101
179699370,3rtkit-daemon0-21swapper/108:40:180
179699370,3rtkit-daemon0-21swapper/107:12:511
179699370,3rtkit-daemon0-21swapper/010:25:091
179699360,3rtkit-daemon0-21swapper/112:33:391
179699360,3rtkit-daemon0-21swapper/109:59:491
179699350,4rtkit-daemon1795-21rtkit-daemon11:55:471
179699350,3rtkit-daemon0-21swapper/112:15:371
179699350,3rtkit-daemon0-21swapper/108:58:400
179699340,4rtkit-daemon1795-21rtkit-daemon12:28:531
179699340,4rtkit-daemon1795-21rtkit-daemon10:08:310
179699340,4rtkit-daemon1795-21rtkit-daemon09:49:140
179699340,4rtkit-daemon1795-21rtkit-daemon08:54:061
179699340,4rtkit-daemon1795-21rtkit-daemon07:54:160
179699340,3rtkit-daemon0-21swapper/111:49:281
179699340,3rtkit-daemon0-21swapper/111:03:210
179699340,3rtkit-daemon0-21swapper/009:03:541
179699340,3rtkit-daemon0-21swapper/007:55:561
179699330,5rtkit-daemon4165974-21ssh10:32:551
179699330,4rtkit-daemon1795-21rtkit-daemon12:23:530
179699330,4rtkit-daemon1795-21rtkit-daemon12:23:520
179699330,4rtkit-daemon1795-21rtkit-daemon09:36:050
179699330,4rtkit-daemon1795-21rtkit-daemon09:09:090
179699330,3rtkit-daemon0-21swapper/009:54:290
4058270993218,2cyclictest55331-21ssh12:30:250
179699320,4rtkit-daemon1795-21rtkit-daemon11:02:351
179699320,4rtkit-daemon1795-21rtkit-daemon08:41:151
4058273993128,2cyclictest18150irq/39-mmc010:40:261
179699310,4rtkit-daemon1795-21rtkit-daemon07:30:371
179699310,3rtkit-daemon1795-21rtkit-daemon08:57:591
179699310,3rtkit-daemon1795-21rtkit-daemon08:01:380
179699310,3rtkit-daemon1795-21rtkit-daemon07:16:561
179699310,3rtkit-daemon0-21swapper/010:15:361
179699310,3rtkit-daemon0-21swapper/008:19:071
4058270993010,5cyclictest13-21ksoftirqd/011:05:550
179699300,4rtkit-daemon1795-21rtkit-daemon07:36:130
179699300,3rtkit-daemon1795-21rtkit-daemon08:08:281
179699300,3rtkit-daemon0-21swapper/112:28:250
179699300,3rtkit-daemon0-21swapper/107:10:520
179699300,3rtkit-daemon0-21swapper/009:49:281
179699300,3rtkit-daemon0-21swapper/009:30:481
179699300,3rtkit-daemon0-21swapper/008:35:111
405827099299,4cyclictest141rcu_preempt10:00:000
4058270992914,2cyclictest141rcu_preempt11:20:230
179699290,5rtkit-daemon4060340-21munin-node07:43:531
179699290,4rtkit-daemon1795-21rtkit-daemon08:49:280
179699290,3rtkit-daemon0-21swapper/010:24:561
179699290,3rtkit-daemon0-21swapper/009:42:161
179699290,3rtkit-daemon0-21swapper/007:22:011
40876362280,2sleep14087669-21ntp_states08:20:211
4058270992825,2cyclictest15319-1kworker/0:1H11:40:060
4058270992814,4cyclictest13-21ksoftirqd/012:10:170
4058270992811,5cyclictest13-21ksoftirqd/009:20:010
4058270992811,2cyclictest141rcu_preempt10:13:270
179699280,3rtkit-daemon0-21swapper/110:47:530
179699280,3rtkit-daemon0-21swapper/109:01:330
179699280,3rtkit-daemon0-21swapper/009:22:581
179699280,3rtkit-daemon0-21swapper/008:14:411
179699280,3rtkit-daemon0-21swapper/007:51:401
405827399279,11cyclictest4135575-21apt-get09:50:131
4058273992723,3cyclictest66950irq/132-enp2s009:36:231
405827099279,5cyclictest13-21ksoftirqd/010:41:550
4058270992722,3cyclictest4166222-21chrt10:33:330
4058270992713,10cyclictest8495-21apt-get11:25:130
4058270992712,5cyclictest4158970-21ssh10:22:430
4058270992711,10cyclictest4142503-21apt-get10:00:120
179699270,3rtkit-daemon0-21swapper/110:52:390
179699270,3rtkit-daemon0-21swapper/012:01:241
179699270,3rtkit-daemon0-21swapper/010:14:181
405827099268,4cyclictest13-21ksoftirqd/009:28:290
179699260,21rtkit-daemon4058264-21cyclictest08:31:411
4058273992522,2cyclictest66950irq/132-enp2s009:25:251
405827399252,16cyclictest36933-21apt-get12:05:121
4058273992520,3cyclictest26-21ksoftirqd/110:05:001
4058273992513,7cyclictest66950irq/132-enp2s011:30:131
405827399250,6cyclictest0-21swapper/112:37:551
405827399250,6cyclictest0-21swapper/111:13:241
405827099252,17cyclictest22545-21apt-get11:45:120
4058270992512,2cyclictest141rcu_preempt12:05:250
179699250,1rtkit-daemon1795-21rtkit-daemon10:15:220
179699250,1rtkit-daemon1795-21rtkit-daemon07:45:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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