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2026-05-14 - 20:11
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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 50 highest latencies:
System rackcslot4.osadl.org (updated Thu May 14, 2026 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6570792263187,27sleep10-21swapper/107:08:541
6570112259184,25sleep00-21swapper/007:08:110
7020012850,5sleep00-21swapper/009:00:150
8085312660,9sleep013-21ksoftirqd/011:25:200
6700222620,4sleep0670007-21cron07:40:010
65735299623,10cyclictest804046-21apt-get11:20:131
8441042540,6chrt0-21swapper/012:15:000
179699540,4rtkit-daemon1795-21rtkit-daemon10:20:080
179699520,4rtkit-daemon1795-21rtkit-daemon11:29:241
179699510,4rtkit-daemon1795-21rtkit-daemon09:32:040
179699510,3rtkit-daemon1795-21rtkit-daemon10:27:030
8115602500,4sleep0811557-21ssh11:30:140
179699500,4rtkit-daemon1795-21rtkit-daemon09:16:170
179699500,3rtkit-daemon1795-21rtkit-daemon11:06:490
179699490,4rtkit-daemon1795-21rtkit-daemon08:13:381
179699460,7rtkit-daemon774330-21rm10:39:550
179699460,3rtkit-daemon1795-21rtkit-daemon08:55:420
65735299458,5cyclictest284-20systemd-journal08:55:001
179699420,5rtkit-daemon705621-21diskmemload09:22:280
65735299413,9cyclictest778256-21apt-get10:45:121
179699400,9rtkit-daemon764622-21grep10:25:251
179699400,3rtkit-daemon1795-21rtkit-daemon10:46:150
179699390,3rtkit-daemon0-21swapper/010:58:260
65735299374,8cyclictest859789-21apt-get12:35:141
179699370,4rtkit-daemon1795-21rtkit-daemon09:38:140
179699370,4rtkit-daemon1795-21rtkit-daemon09:21:281
179699370,3rtkit-daemon0-21swapper/112:28:210
179699370,3rtkit-daemon0-21swapper/011:19:380
179699360,3rtkit-daemon0-21swapper/009:59:430
179699350,4rtkit-daemon1795-21rtkit-daemon11:46:430
179699350,4rtkit-daemon1795-21rtkit-daemon08:25:361
179699350,3rtkit-daemon0-21swapper/107:20:100
179699350,3rtkit-daemon0-21swapper/011:10:161
179699350,3rtkit-daemon0-21swapper/010:13:130
179699350,3rtkit-daemon0-21swapper/010:07:401
179699350,3rtkit-daemon0-21swapper/010:02:500
179699350,3rtkit-daemon0-21swapper/009:18:321
179699340,4rtkit-daemon1795-21rtkit-daemon10:31:290
179699340,3rtkit-daemon1795-21rtkit-daemon12:25:161
179699340,3rtkit-daemon1795-21rtkit-daemon12:15:230
179699340,3rtkit-daemon1795-21rtkit-daemon11:05:221
179699340,3rtkit-daemon0-21swapper/007:32:090
179699330,4rtkit-daemon1795-21rtkit-daemon07:41:460
179699330,3rtkit-daemon0-21swapper/112:31:160
179699330,3rtkit-daemon0-21swapper/010:31:501
179699330,3rtkit-daemon0-21swapper/008:51:000
179699330,3rtkit-daemon0-21swapper/008:47:301
657352993230,1cyclictest702140-1kworker/1:0H09:05:061
179699320,3rtkit-daemon1795-21rtkit-daemon12:21:240
179699320,3rtkit-daemon1795-21rtkit-daemon07:18:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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