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2026-03-21 - 22:57
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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 Sat Mar 21, 2026 12:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
39165502263182,27sleep00-21swapper/007:08:530
39165772261186,59sleep10-21swapper/107:09:121
179699610,4rtkit-daemon1795-21rtkit-daemon10:50:450
179699540,4rtkit-daemon1795-21rtkit-daemon11:55:021
179699520,4rtkit-daemon1795-21rtkit-daemon07:50:140
179699500,3rtkit-daemon1795-21rtkit-daemon07:36:430
179699490,3rtkit-daemon1795-21rtkit-daemon09:13:160
179699490,3rtkit-daemon1795-21rtkit-daemon08:48:180
179699490,3rtkit-daemon1795-21rtkit-daemon08:13:100
179699470,4rtkit-daemon1795-21rtkit-daemon11:01:590
179699470,3rtkit-daemon1795-21rtkit-daemon12:13:040
179699470,3rtkit-daemon1795-21rtkit-daemon08:39:020
179699430,5rtkit-daemon3965101-21diskmemload09:49:570
179699430,5rtkit-daemon3965101-21diskmemload09:49:570
179699420,9rtkit-daemon4083294-21rm11:54:170
179699390,6rtkit-daemon1795-21rtkit-daemon10:25:140
179699380,4rtkit-daemon1795-21rtkit-daemon09:50:111
179699380,3rtkit-daemon0-21swapper/112:22:421
179699380,3rtkit-daemon0-21swapper/011:26:350
179699370,3rtkit-daemon1795-21rtkit-daemon09:00:210
179699370,3rtkit-daemon0-21swapper/012:39:410
179699360,4rtkit-daemon1795-21rtkit-daemon10:08:170
179699360,3rtkit-daemon0-21swapper/010:14:251
179699360,3rtkit-daemon0-21swapper/009:07:190
179699350,3rtkit-daemon0-21swapper/111:52:231
179699340,4rtkit-daemon4039970-21ssh10:52:441
179699340,4rtkit-daemon3933729-21apt-config07:50:021
179699340,4rtkit-daemon1795-21rtkit-daemon11:34:561
179699340,3rtkit-daemon0-21swapper/010:02:090
179699340,3rtkit-daemon0-21swapper/009:57:281
179699340,3rtkit-daemon0-21swapper/008:18:201
3916764993331,1cyclictest0-21swapper/108:30:141
179699330,3rtkit-daemon1795-21rtkit-daemon09:43:160
179699330,3rtkit-daemon0-21swapper/012:13:111
179699330,3rtkit-daemon0-21swapper/010:22:231
179699330,3rtkit-daemon0-21swapper/010:02:231
179699330,3rtkit-daemon0-21swapper/007:57:580
179699330,3rtkit-daemon0-21swapper/007:57:570
179699320,4rtkit-daemon1795-21rtkit-daemon09:47:011
179699320,4rtkit-daemon1795-21rtkit-daemon09:47:011
179699320,3rtkit-daemon0-21swapper/112:04:500
179699320,3rtkit-daemon0-21swapper/011:23:491
179699320,3rtkit-daemon0-21swapper/010:45:121
179699320,3rtkit-daemon0-21swapper/009:11:311
179699320,3rtkit-daemon0-21swapper/008:36:511
179699320,3rtkit-daemon0-21swapper/008:00:041
179699310,4rtkit-daemon1795-21rtkit-daemon12:17:251
179699310,3rtkit-daemon1795-21rtkit-daemon07:33:160
179699310,3rtkit-daemon1795-21rtkit-daemon07:13:200
179699310,3rtkit-daemon0-21swapper/011:05:271
179699310,3rtkit-daemon0-21swapper/010:27:341
179699310,3rtkit-daemon0-21swapper/009:34:231
179699310,3rtkit-daemon0-21swapper/007:26:271
3916764993015,8cyclictest4105520-21apt-get12:25:121
3916764993014,10cyclictest3941840-21apt-get08:10:131
179699300,3rtkit-daemon1795-21rtkit-daemon12:04:221
179699300,3rtkit-daemon1795-21rtkit-daemon08:24:360
179699300,3rtkit-daemon1795-21rtkit-daemon07:20:410
179699300,3rtkit-daemon0-21swapper/012:05:271
179699300,3rtkit-daemon0-21swapper/012:05:261
179699300,3rtkit-daemon0-21swapper/010:18:331
179699300,3rtkit-daemon0-21swapper/007:39:501
391676499291,14cyclictest3965101-21diskmemload09:18:351
3916762992926,2cyclictest66950irq/132-enp2s011:34:250
179699290,4rtkit-daemon4048620-21apt-get11:05:130
179699290,3rtkit-daemon1795-21rtkit-daemon08:27:030
179699290,3rtkit-daemon0-21swapper/111:49:160
179699290,3rtkit-daemon0-21swapper/109:22:140
179699290,3rtkit-daemon0-21swapper/012:37:491
179699290,3rtkit-daemon0-21swapper/011:26:411
179699290,3rtkit-daemon0-21swapper/011:15:381
179699290,3rtkit-daemon0-21swapper/010:06:101
3916764992810,5cyclictest806-21in:imuxsock09:30:001
391676299284,17cyclictest3969097-21apt-get09:15:120
179699280,3rtkit-daemon0-21swapper/008:50:121
179699270,3rtkit-daemon0-21swapper/010:36:131
179699270,3rtkit-daemon0-21swapper/007:45:031
179699270,3rtkit-daemon0-21swapper/007:34:191
40587102260,11sleep013-21ksoftirqd/011:19:240
391676499260,6cyclictest0-21swapper/107:20:061
179699260,3rtkit-daemon0-21swapper/010:57:231
179699260,3rtkit-daemon0-21swapper/007:11:391
179699260,1rtkit-daemon1795-21rtkit-daemon10:57:310
391676499259,10cyclictest3945766-21apt-get08:20:131
391676499252,17cyclictest3955538-21apt-get08:45:151
391676499250,6cyclictest0-21swapper/107:58:281
391676499250,6cyclictest0-21swapper/107:58:271
391676499250,5cyclictest0-21swapper/109:04:051
3916762992522,2cyclictest66950irq/132-enp2s009:52:060
391676299252,16cyclictest4012316-21apt-get10:15:130
3916762992513,7cyclictest66950irq/132-enp2s011:40:120
3916762992512,7cyclictest66950irq/132-enp2s010:30:140
3916762992510,5cyclictest0-21swapper/010:47:320
179699250,20rtkit-daemon1795-21rtkit-daemon11:59:360
179699250,1rtkit-daemon1795-21rtkit-daemon09:57:000
179699250,1rtkit-daemon1795-21rtkit-daemon09:37:320
179699250,1rtkit-daemon1795-21rtkit-daemon08:32:230
391676499244,11cyclictest3929713-21apt-get07:40:131
3916764992411,8cyclictest4077018-21apt-get11:45:121
391676499241,18cyclictest4047984-21python311:05:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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