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2026-06-15 - 07:44
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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 Mon Jun 15, 2026 00:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34876922310276,19sleep00-21swapper/019:08:390
34876132305263,28sleep10-21swapper/119:07:481
179699590,6rtkit-daemon1795-21rtkit-daemon21:10:161
179699570,4rtkit-daemon1795-21rtkit-daemon19:40:111
179699560,3rtkit-daemon1795-21rtkit-daemon22:52:460
36857742530,4chrt0-21swapper/100:35:111
179699510,3rtkit-daemon1795-21rtkit-daemon19:24:131
179699500,4rtkit-daemon1795-21rtkit-daemon22:43:510
179699500,4rtkit-daemon1795-21rtkit-daemon21:09:431
179699500,4rtkit-daemon1795-21rtkit-daemon19:31:230
179699490,4rtkit-daemon1795-21rtkit-daemon22:33:360
179699490,4rtkit-daemon1795-21rtkit-daemon21:56:130
348806299484,11cyclictest3646846-21apt-get23:40:141
179699470,4rtkit-daemon1795-21rtkit-daemon19:48:041
348806299453,15cyclictest3650366-21apt-get23:45:151
36692002440,1sleep10-21swapper/100:10:281
36687322400,3chrt0-21swapper/000:10:240
179699390,5rtkit-daemon3657868-21df23:55:151
179699390,3rtkit-daemon0-21swapper/100:26:341
179699380,3rtkit-daemon1795-21rtkit-daemon23:23:480
179699380,3rtkit-daemon0-21swapper/100:05:201
179699370,5rtkit-daemon3671306-21apt-get00:15:120
35851842360,5sleep1251rcuc/122:15:141
179699360,4rtkit-daemon1795-21rtkit-daemon23:10:510
179699360,3rtkit-daemon0-21swapper/019:35:170
179699350,4rtkit-daemon3566246-21ssh21:49:440
179699350,4rtkit-daemon1795-21rtkit-daemon21:50:480
179699350,3rtkit-daemon1795-21rtkit-daemon20:25:120
179699350,3rtkit-daemon0-21swapper/121:16:571
179699350,3rtkit-daemon0-21swapper/023:24:501
179699350,3rtkit-daemon0-21swapper/020:50:460
179699350,3rtkit-daemon0-21swapper/020:17:340
179699350,3rtkit-daemon0-21swapper/019:17:201
179699340,7rtkit-daemon3546339-21ssh21:21:171
179699340,4rtkit-daemon1795-21rtkit-daemon19:16:210
179699340,3rtkit-daemon0-21swapper/100:09:240
179699340,3rtkit-daemon0-21swapper/022:05:550
179699330,4rtkit-daemon1795-21rtkit-daemon00:22:271
179699330,4rtkit-daemon1795-21rtkit-daemon00:22:261
179699330,3rtkit-daemon1795-21rtkit-daemon22:29:250
179699330,3rtkit-daemon0-21swapper/022:59:311
3488062993229,2cyclictest66950irq/132-enp2s021:25:051
179699320,3rtkit-daemon1795-21rtkit-daemon23:35:191
179699320,3rtkit-daemon1795-21rtkit-daemon23:04:040
179699320,3rtkit-daemon1795-21rtkit-daemon22:45:010
179699320,3rtkit-daemon1795-21rtkit-daemon22:36:140
179699320,3rtkit-daemon0-21swapper/123:29:530
179699320,3rtkit-daemon0-21swapper/020:40:571
179699320,3rtkit-daemon0-21swapper/000:02:261
179699320,2rtkit-daemon1795-21rtkit-daemon23:28:071
3488062993128,2cyclictest66950irq/132-enp2s022:53:071
179699310,3rtkit-daemon1795-21rtkit-daemon23:46:020
179699310,3rtkit-daemon1795-21rtkit-daemon22:03:470
179699310,3rtkit-daemon0-21swapper/020:04:051
36887762300,3sleep00-21swapper/000:39:220
3488062993026,3cyclictest66950irq/132-enp2s023:12:341
179699300,4rtkit-daemon1795-21rtkit-daemon20:06:050
179699300,3rtkit-daemon0-21swapper/121:31:280
179699300,3rtkit-daemon0-21swapper/121:28:460
179699300,3rtkit-daemon0-21swapper/100:21:470
179699300,3rtkit-daemon0-21swapper/100:21:470
179699300,3rtkit-daemon0-21swapper/022:44:191
3488062992926,1cyclictest66950irq/132-enp2s021:59:481
3488055992913,10cyclictest3520361-21apt-get20:30:110
179699290,4rtkit-daemon3591725-21ssh22:23:591
179699290,3rtkit-daemon0-21swapper/121:17:170
179699290,3rtkit-daemon0-21swapper/121:12:550
179699290,3rtkit-daemon0-21swapper/119:42:220
179699290,3rtkit-daemon0-21swapper/020:33:401
179699290,3rtkit-daemon0-21swapper/020:23:391
3488055992811,11cyclictest3502771-21apt-get19:45:150
3488055992810,3cyclictest13-21ksoftirqd/022:11:350
179699280,3rtkit-daemon0-21swapper/021:02:231
179699280,3rtkit-daemon0-21swapper/020:51:351
179699280,3rtkit-daemon0-21swapper/019:32:201
3488062992724,2cyclictest66950irq/132-enp2s022:26:201
3488055992713,4cyclictest13-21ksoftirqd/023:36:010
3488055992710,11cyclictest3554745-1kworker/u9:121:40:140
179699270,3rtkit-daemon0-21swapper/022:46:391
179699270,3rtkit-daemon0-21swapper/020:47:111
179699270,3rtkit-daemon0-21swapper/020:07:561
179699270,21rtkit-daemon3488043-21cyclictest19:50:230
348806299260,6cyclictest0-21swapper/120:18:031
3488055992612,4cyclictest13-21ksoftirqd/023:51:140
179699260,3rtkit-daemon0-21swapper/021:54:031
179699260,3rtkit-daemon0-21swapper/019:36:061
179699260,3rtkit-daemon0-21swapper/019:14:561
179699260,21rtkit-daemon3570577-21kworker/1:122:00:091
179699260,20rtkit-daemon3488043-21cyclictest23:35:000
348806299259,6cyclictest0-21swapper/123:32:311
3488062992522,2cyclictest66950irq/132-enp2s021:45:431
348806299250,6cyclictest0-21swapper/119:59:461
3488055992518,5cyclictest3556627-21processes21:35:230
3488055992510,9cyclictest3508641-21apt-get20:00:120
179699250,3rtkit-daemon0-21swapper/022:09:351
179699250,20rtkit-daemon3488043-21cyclictest22:21:310
179699250,20rtkit-daemon1795-21rtkit-daemon20:29:581
179699250,1rtkit-daemon1795-21rtkit-daemon20:49:490
179699250,1rtkit-daemon1795-21rtkit-daemon20:36:030
179699250,1rtkit-daemon1795-21rtkit-daemon20:10:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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